# Browser Tools

> Browser Tools is a free collection of 135 private online tools for creators, freelancers and small businesses, in six hubs: Creators, Business, Career, Files, Health and Everyday. Files are processed in the visitor's web browser and never uploaded. A few tools use the server, and say so on their pages: the AI tools (the Viral Hook Generator, Tailor My CV and Interview Prep send text to Google Gemini; the Accent Changer sends short voice clips to the site's own OpenVoice server), and IP & DNS Lookup runs its lookups on the server. No sign-up and no watermark.

- Privacy: files are processed on the user's own device; each page's Content Security Policy blocks sending them anywhere. Exceptions, stated on their pages: the Viral Hook Generator, Tailor My CV and Interview Prep (text goes to Google Gemini), the Accent Changer (short voice clips go to the site's own voice server) and IP & DNS Lookup (lookups run on the server). Transcribe Audio downloads its speech model from Hugging Face once; the audio stays on the device. Text to Speech uses the browser's voices: on-device voices keep the text local, voices marked "online" are read by the browser's own cloud service.
- Cost: free. No account is needed.
- Works in current Chrome, Edge, Firefox and Safari on desktop and mobile.
- Health: the blood test checker reads lab reports inside the browser; reports are never uploaded; optional sync stores only data encrypted on the device, which the server cannot read. Results are educational, not a diagnosis.
- Calculators give estimates for planning, not financial, medical, tax or legal advice.

Last updated: 2026-11-03. Full text of every guide: https://browser4tools.com/llms-full.txt

## Creators

[Creators hub](https://browser4tools.com/creators): Cut, crop and compress clips, record your screen, change your voice, turn speech into text and blend songs into mashups. Video and audio are processed on your device. Two tools use a server, and their pages say so: the Viral Hook Generator sends the idea you type to Google Gemini, and the Accent Changer sends short voice clips to our voice server.

- [Video Editor](https://browser4tools.com/video-editor): Crop, rotate, speed up and compress videos.
- [Trim Video](https://browser4tools.com/video-trim): Cut MP4, MOV or WebM without re-encoding.
- [Compress Video](https://browser4tools.com/video-compressor): Make videos smaller for WhatsApp and email.
- [Crop Video (9:16)](https://browser4tools.com/crop-video)
- [Rotate Video](https://browser4tools.com/rotate-video)
- [Change Video Speed](https://browser4tools.com/change-video-speed)
- [Mute Video](https://browser4tools.com/mute-video): Remove the sound, keep the picture.
- [Video to GIF](https://browser4tools.com/video-to-gif): Turn a clip into a looping GIF.
- [Video to MP3](https://browser4tools.com/video-to-mp3): Extract the audio from any video.
- [Screen Recorder](https://browser4tools.com/screen-recorder): Record your screen, webcam and mic.
- [Face Filter for Video](https://browser4tools.com/face-filter-video): Masks, avatars, blur faces. No upload.
- [Voice Changer](https://browser4tools.com/voice-changer): Storytime, podcast, robot, chipmunk and 25 more voices.
- [Accent Changer](https://browser4tools.com/accent-changer): New English accent, same voice, audio or video.
- [Voice Recorder](https://browser4tools.com/voice-recorder): Record your voice, save as WAV or WebM.
- [Text to Speech](https://browser4tools.com/text-to-speech): Read any text aloud, free and unlimited.
- [Transcribe Audio](https://browser4tools.com/transcribe-audio): Speech to text with Whisper, on your device.
- [YouTube Chapters Generator](https://browser4tools.com/youtube-chapters-generator): Chapters, subtitles and a description from your video, on device.
- [Burn Subtitles into Video](https://browser4tools.com/burn-subtitles): Styled captions drawn into your video, no watermark.
- [Podcast Loudness Normalizer](https://browser4tools.com/podcast-loudness): Measure LUFS and true peak, normalise to -16, -14 or -23.
- [Slowed + Reverb Maker](https://browser4tools.com/slowed-and-reverb-maker): Make any song slowed and reverb, listen free.
- [Nightcore Maker](https://browser4tools.com/nightcore-maker)
- [8D Audio Converter](https://browser4tools.com/8d-audio-converter)
- [Bass Booster](https://browser4tools.com/bass-booster)
- [Song Mashup Maker](https://browser4tools.com/song-mashup-maker): Blend 2–4 songs into one mashup.
- [YouTube Mashup Maker](https://browser4tools.com/youtube-mashup-maker): Mix two YouTube videos live, creators keep the views.
- [Viral Hook Generator](https://browser4tools.com/viral-hook-generator): Messy idea in, 3 scroll-stopping hooks out.
- [Caption & Hashtag Generator](https://browser4tools.com/video-caption-hashtag-generator): Titles, captions and hashtags for TikTok and Reels.
- [YouTube Thumbnail Resizer](https://browser4tools.com/youtube-thumbnail-resizer): 1280 × 720 under 2 MB.
- [Resize for Instagram](https://browser4tools.com/resize-image-for-instagram): Square, portrait and story sizes.

## Business

[Business hub](https://browser4tools.com/business): Make an invoice, a quote or a freelance contract and download it as a PDF. Then check the numbers: VAT, profit margin, break-even, the hourly rate you need and gains on crypto. Everything you type stays in your browser.

- [Invoice Generator](https://browser4tools.com/invoice-generator): Fill a form, download a clean PDF invoice.
- [XRechnung Generator](https://browser4tools.com/xrechnung-generator): E-invoice for Germany (XRechnung 3.0, UBL), checked before download.
- [ZUGFeRD & Factur-X Generator](https://browser4tools.com/zugferd-factur-x-generator): PDF/A-3 e-invoice with the data inside, for Germany and France.
- [E-Invoice Viewer](https://browser4tools.com/e-invoice-viewer): Open XRechnung, ZUGFeRD and Factur-X files and check them.
- [Quote & Estimate Maker](https://browser4tools.com/quote-generator): Send professional price quotes.
- [Freelance Contract](https://browser4tools.com/freelance-contract-generator): A clear service agreement in minutes.
- [VAT & GST Calculator](https://browser4tools.com/vat-calculator): Add or remove sales tax.
- [Profit Margin Calculator](https://browser4tools.com/profit-margin-calculator): Margin, markup and selling price.
- [Break-Even Calculator](https://browser4tools.com/break-even-calculator): Units you must sell to cover costs.
- [Hourly Rate Calculator](https://browser4tools.com/freelance-hourly-rate-calculator): What to charge to hit your income.
- [Crypto Capital Gains](https://browser4tools.com/crypto-capital-gains-calculator): FIFO, LIFO and HIFO gains and tax.
- [UK Crypto Tax Calculator](https://browser4tools.com/uk-crypto-tax-calculator): HMRC same-day, 30-day and pool rules, SA108 figures.
- [Germany Crypto Tax Calculator](https://browser4tools.com/germany-crypto-tax-calculator): One-year rule, FIFO and the €1,000 Freigrenze.

## Career

[Career hub](https://browser4tools.com/career): Check how an applicant tracking system reads your CV, turn a UK CV into a US resume, work out your notice period and last working day, write a resignation or reference request letter and track your applications. These run in your browser. Two paid tools use AI: Tailor My CV and Interview Prep send the text of your CV and the job ad to Google Gemini, and the tracker's optional reminders send only the times to our server.

- [ATS CV Checker](https://browser4tools.com/ats-cv-checker): See what an ATS reads from your CV.
- [CV vs Job Ad Match](https://browser4tools.com/cv-job-match): Keyword match % and missing skills.
- [Tailor My CV](https://browser4tools.com/tailor-cv): CV + cover letter for one job ad, no made-up facts.
- [Interview Prep](https://browser4tools.com/interview-prep): 10 likely questions and STAR answers.
- [UK CV vs US Resume](https://browser4tools.com/uk-cv-vs-us-resume): Convert a CV to a US resume or Lebenslauf.
- [Job Offer Comparison](https://browser4tools.com/job-offer-comparison): Take-home, pension, bonus and commute.
- [Contractor vs Permanent (IR35)](https://browser4tools.com/contractor-vs-permanent-calculator): Day rate vs salary, inside or outside IR35.
- [Notice Period Calculator](https://browser4tools.com/notice-period-calculator): Last working day, UK/DE/US notice rules.
- [Resignation Letter](https://browser4tools.com/resignation-letter): UK or US letter, Word or PDF.
- [Reference Request Letter](https://browser4tools.com/reference-request-letter): Ask a referee politely, with consent.
- [Job Application Tracker](https://browser4tools.com/job-application-tracker): Track applications, follow-ups, CSV.
- [LinkedIn Profile Picture](https://browser4tools.com/linkedin-photo): 400 × 400, face centred, new background.

## Files

[Files hub](https://browser4tools.com/files): Shrink a photo for an upload form, convert iPhone HEIC pictures, resize for a passport photo, merge PDFs or open an Excel file without Excel. Every tool here works on your device: the files are never uploaded.

- [Compress Image](https://browser4tools.com/image-compress): Shrink JPG, PNG and WebP, often by 70%+.
- [Compress to Exact KB](https://browser4tools.com/compress-image-to-kb): Hit a size limit: 20 KB, 50 KB, 100 KB…
- [Compress to 20 KB](https://browser4tools.com/compress-image-to-20kb)
- [Compress to 50 KB](https://browser4tools.com/compress-image-to-50kb)
- [Compress to 100 KB](https://browser4tools.com/compress-image-to-100kb)
- [Compress to 200 KB](https://browser4tools.com/compress-image-to-200kb)
- [Compress to 500 KB](https://browser4tools.com/compress-image-to-500kb)
- [Compress to 1 MB](https://browser4tools.com/compress-image-to-1mb)
- [Resize Image](https://browser4tools.com/resize-image): Any width and height, or by percentage.
- [Passport Size Photo](https://browser4tools.com/passport-size-photo): 2 × 2 in, 35 × 45 mm and more, print-ready.
- [HEIC to JPG](https://browser4tools.com/heic-to-jpg): Open iPhone photos anywhere.
- [WebP to JPG](https://browser4tools.com/webp-to-jpg): Save WebP images as normal JPGs.
- [WebP to PNG](https://browser4tools.com/webp-to-png)
- [AVIF to JPG](https://browser4tools.com/avif-to-jpg): Convert AVIF images to JPG.
- [PNG to JPG](https://browser4tools.com/png-to-jpg)
- [JPG to PNG](https://browser4tools.com/jpg-to-png)
- [Favicon Generator](https://browser4tools.com/favicon-generator): favicon.ico and app icons from text or an image.
- [Merge PDF](https://browser4tools.com/pdf-merge): Combine PDFs in any order.
- [PDF to Word](https://browser4tools.com/pdf-to-word): Editable .docx from any PDF.
- [Word to PDF](https://browser4tools.com/word-to-pdf): Turn .docx files into PDFs.
- [PDF to JPG](https://browser4tools.com/pdf-to-jpg): Export the pages you pick as images.
- [Image to PDF](https://browser4tools.com/image-to-pdf): JPG, PNG and HEIC into one PDF.
- [JPG to PDF](https://browser4tools.com/jpg-to-pdf)
- [PNG to PDF](https://browser4tools.com/png-to-pdf)
- [HEIC to PDF](https://browser4tools.com/heic-to-pdf): iPhone photos into one PDF.
- [Excel Viewer](https://browser4tools.com/excel-viewer): Open .xlsx, .xls and .csv files online.
- [Word Viewer](https://browser4tools.com/word-viewer): Read .docx documents without Word.

## Health

[Health hub](https://browser4tools.com/health): Paste or photograph a blood test report and see each result explained in plain words, with questions for your doctor. Get a 7-day diet plan for your condition, check a meal, and set medicine and water reminders. Your reports are read on your device.

- [Blood Test Report Checker](https://browser4tools.com/blood-test-checker): Paste results: what's low, normal or high.
- [HbA1c & Blood Sugar Checker](https://browser4tools.com/hba1c-blood-sugar-checker): Normal, prediabetes or diabetes range.
- [CBC Test](https://browser4tools.com/cbc-test-checker)
- [Lipid Profile](https://browser4tools.com/lipid-profile-checker)
- [Thyroid Test](https://browser4tools.com/thyroid-test-checker)
- [Liver Function Test](https://browser4tools.com/liver-function-test-checker)
- [Kidney Function Test](https://browser4tools.com/kidney-function-test-checker)
- [Vitamin D Test](https://browser4tools.com/vitamin-d-test-checker)
- [Diet Plan for Health Conditions](https://browser4tools.com/diet-plan-for-health-conditions): 7-day meal plans for diabetes, BP, kidney and more.
- [Diabetes Diet Plan](https://browser4tools.com/diabetes-diet-plan): Steady blood sugar, desi and Western meals.
- [High BP Diet](https://browser4tools.com/high-blood-pressure-diet-plan)
- [Cholesterol Diet](https://browser4tools.com/cholesterol-lowering-diet-plan)
- [Fatty Liver Diet](https://browser4tools.com/fatty-liver-diet-plan)
- [Kidney Disease Diet](https://browser4tools.com/kidney-disease-diet-plan)
- [PCOS Diet](https://browser4tools.com/pcos-diet-plan)
- [Thyroid Diet](https://browser4tools.com/thyroid-diet-plan)
- [Gout Diet](https://browser4tools.com/gout-diet-plan)
- [Low-FODMAP (IBS) Diet](https://browser4tools.com/low-fodmap-diet-plan)
- [Gestational Diabetes Diet](https://browser4tools.com/gestational-diabetes-diet-plan)
- [Diarrhea Diet](https://browser4tools.com/diarrhea-diet-plan)
- [Anal Fissure Diet](https://browser4tools.com/anal-fissure-diet-plan)
- [Meal Checker for Health Conditions](https://browser4tools.com/meal-checker-for-health-conditions): Type what you ate: what to add, what to cut.
- [Medicine Reminder](https://browser4tools.com/medicine-reminder): Your doses, alerts and the prescription photo.
- [Family Medicine Chart](https://browser4tools.com/family-medicine-chart): A weekly chart for a parent's medicines, shared with family.
- [Water Reminder](https://browser4tools.com/water-reminder): Your daily water goal and drink alerts.
- [Food Calorie Calculator](https://browser4tools.com/food-calorie-checker): Type, say or snap what you ate: calories per day.
- [Fiber Checker](https://browser4tools.com/fiber-checker): How much fiber you ate today, and what to add.

## Everyday

[Everyday hub](https://browser4tools.com/everyday): Work out your GPA or the grade you need on the final, check your BMI and daily calories, fix grammar, count words and make a QR code. Everything runs in your browser, except IP & DNS Lookup, which asks our server, and the pet reminder's optional notifications, which send only the times.

- [Pomodoro Focus Timer](https://browser4tools.com/pomodoro-timer): 25/5 study blocks with lo-fi and white noise.
- [GPA Calculator](https://browser4tools.com/gpa-calculator): Semester and cumulative GPA.
- [Final Grade Calculator](https://browser4tools.com/final-grade-calculator): What you need on the final exam.
- [Percentage Calculator](https://browser4tools.com/percentage-calculator): Percent of, change and difference.
- [Age Calculator](https://browser4tools.com/age-calculator): Exact age in years, months and days.
- [BMI Calculator](https://browser4tools.com/bmi-calculator): Body mass index and healthy weight range.
- [Calorie Calculator](https://browser4tools.com/calorie-calculator): Daily calories to lose, keep or gain.
- [Macro Meal Planner](https://browser4tools.com/macro-calculator): Protein, carbs and fat per meal.
- [Body Fat Calculator](https://browser4tools.com/body-fat-calculator): US Navy method with a tape measure.
- [Ideal Weight Calculator](https://browser4tools.com/ideal-weight-calculator): Four formulas and a healthy range.
- [One Rep Max Calculator](https://browser4tools.com/one-rep-max-calculator): Your 1RM and training percentages.
- [Waist-to-Hip Ratio](https://browser4tools.com/waist-to-hip-ratio-calculator): Body shape and health risk.
- [Home Loan Calculator](https://browser4tools.com/home-loan-calculator): Monthly payment and full amortization schedule.
- [EMI Calculator](https://browser4tools.com/emi-calculator): Monthly instalments for any loan.
- [Compound Interest](https://browser4tools.com/compound-interest-calculator): See savings grow year by year.
- [Grammar & Writing Checker](https://browser4tools.com/grammar-checker): Spelling, grammar, style and readability.
- [Readability Checker](https://browser4tools.com/readability-checker)
- [Word Counter](https://browser4tools.com/word-counter): Words, characters and reading time.
- [Case Converter](https://browser4tools.com/case-converter): UPPER, lower, Title, camelCase and more.
- [Remove Formatting](https://browser4tools.com/remove-formatting): Paste messy text, get clean plain text.
- [Remove Line Breaks](https://browser4tools.com/remove-line-breaks): Join lines into one paragraph.
- [Remove Duplicate Lines](https://browser4tools.com/remove-duplicate-lines): Dedupe and sort lists.
- [QR Code Generator](https://browser4tools.com/qr-code-generator): Links, text and Wi-Fi. PNG or SVG.
- [QR Code with Logo](https://browser4tools.com/qr-code-with-logo): Put your logo in the middle.
- [Barcode Generator](https://browser4tools.com/barcode-generator): EAN, UPC, Code 128 and more.
- [IP & DNS Lookup](https://browser4tools.com/dns-ip-lookup): Your IP, location and any site's DNS records.
- [Pet Medicine Reminder](https://browser4tools.com/pet-medicine-reminder): Flea, worming and daily pills for your dog or cat.

## Lab results explained

- [Health Hub](https://browser4tools.com/health): lab checkers, diet plans and medicine reminders in one place
- [High creatinine: what it means](https://browser4tools.com/lab-results/high-creatinine): What a high creatinine result means, common causes such as dehydration and kidney disease, how eGFR fits in, and when a high reading needs urgent care.
- [CBC test normal range](https://browser4tools.com/lab-results/cbc-normal-range): Normal ranges for a CBC (complete blood count): hemoglobin, WBC or TLC, platelets, RBC and red cell indices, with both unit styles and what results mean.
- [Low hemoglobin: meaning and causes](https://browser4tools.com/lab-results/low-hemoglobin): What low hemoglobin (haemoglobin) means, common causes like iron deficiency, how MCV and ferritin help find the cause, and when it needs urgent care.
- [High ALT (SGPT): what it means](https://browser4tools.com/lab-results/high-alt-sgpt): What a high ALT or SGPT result means, common causes like fatty liver, alcohol and medicines, how AST and GGT fit in, and when to get urgent care.
- [High TSH: what it means](https://browser4tools.com/lab-results/high-tsh): What a high TSH result means, how free T4 shows whether the thyroid is underactive, common causes, why repeat tests matter and when to get urgent help.
- [Low TSH: what it means](https://browser4tools.com/lab-results/low-tsh): What a low TSH result means, how free T4 and free T3 show an overactive thyroid, other causes such as thyroid tablets, and which symptoms need urgent care.
- [HbA1c normal range](https://browser4tools.com/lab-results/hba1c-normal-range): HbA1c normal, prediabetes and diabetes ranges in % and mmol/mol, how it compares with fasting glucose, what can make it misleading and what happens next.
- [High LDL cholesterol: what it means](https://browser4tools.com/lab-results/high-ldl-cholesterol): What a high LDL (bad) cholesterol result means, the cut-offs in mg/dL and mmol/L, common causes, how doctors judge heart risk and what happens next.
- [High triglycerides: what they mean](https://browser4tools.com/lab-results/high-triglycerides): What high triglycerides mean, normal and high cut-offs in mg/dL and mmol/L, common causes such as sugar, alcohol and diabetes, and when levels are urgent.
- [Low vitamin D level: what it means](https://browser4tools.com/lab-results/low-vitamin-d): What a low vitamin D (25-OH) level means in ng/mL and nmol/L, who is at risk, why calcium is checked too, and what your doctor may suggest next.
- [Low vitamin B12: what your result means](https://browser4tools.com/lab-results/low-vitamin-b12): What a low vitamin B12 result means, common causes such as diet and metformin, symptoms to watch for, and what your doctor may check next.
- [High uric acid: what your result means](https://browser4tools.com/lab-results/high-uric-acid): What a high uric acid result means, how it links to gout and kidney stones, common causes, and what your doctor may suggest next.
- [Low platelet count: what your result means](https://browser4tools.com/lab-results/low-platelet-count): What a low platelet count means, common causes including dengue and other infections, dengue warning signs, and when a low count needs urgent care.
- [High white blood cell count (WBC or TLC): what it means](https://browser4tools.com/lab-results/high-white-blood-cell-count): What a high WBC or TLC result means, common causes such as infection, stress and smoking, how the differential helps, and when to get urgent care.
- [Low ferritin: what your result means](https://browser4tools.com/lab-results/low-ferritin): What a low ferritin result means for your iron stores, common causes such as heavy periods and blood loss, symptoms, and what your doctor may check next.
- [High bilirubin: what your result means](https://browser4tools.com/lab-results/high-bilirubin): What high total, direct or indirect bilirubin means, common causes from Gilbert syndrome to hepatitis, jaundice signs, and when to get urgent care.
- [Low eGFR: what your result means](https://browser4tools.com/lab-results/low-egfr): What a low eGFR result means for kidney function, the stages from G1 to G5, why one result is not a diagnosis, and what your doctor may check next.
- [High CRP: what your result means](https://browser4tools.com/lab-results/high-crp): What a high CRP or hs-CRP result means, common causes such as infection and inflammation, how ESR compares, and when a high result needs urgent care.
- [Fasting blood sugar normal range](https://browser4tools.com/lab-results/fasting-blood-sugar-normal-range): The normal fasting blood sugar range in mg/dL and mmol/L, what prediabetes and diabetes results mean, how to prepare for the test, and what comes next.
- [Lipid profile normal range](https://browser4tools.com/lab-results/lipid-profile-normal-range): Normal lipid profile ranges for total cholesterol, LDL, HDL, triglycerides, non-HDL and VLDL in mg/dL and mmol/L, and what your doctor looks at next.

## Blog

- [How Much Water Should I Drink a Day? A Simple Guide](https://browser4tools.com/blog/how-much-water-should-i-drink): How much water you need by weight, exercise and weather, what counts towards it, signs you need more, and easy ways to remember to drink through the day.
- [How to Change Your Voice for TikTok, Reels and YouTube](https://browser4tools.com/blog/how-to-change-your-voice-for-videos): Turn your voice into a storytime narrator, podcast host, robot or chipmunk, free in your browser. Which voice fits which video, and how to keep it natural.
- [How to Mash Up Two YouTube Songs Without Downloading Them](https://browser4tools.com/blog/how-to-mashup-two-youtube-songs): Mix two YouTube songs live in your browser: cue points, tap tempo, speed matching and a crossfader, via YouTube's own player so artists keep their views.
- [How to Record Audio Online and Save It as WAV](https://browser4tools.com/blog/how-to-record-audio-online): Record your voice in the browser, keep several takes, trim the start and end, and save as WAV or a small compressed file. Free, private, no app to install.
- [How to Record Your Screen With Webcam and Sound, Free](https://browser4tools.com/blog/how-to-record-your-screen): Record your screen, a window or a tab with your webcam in the corner and your voice on top, right in the browser. No install, no watermark, no upload.
- [How to Set Medicine Reminders That Actually Ring](https://browser4tools.com/blog/how-to-set-medicine-reminders): Set reminders for every pill, syrup or inhaler, keep a photo of the prescription, and get phone alarms even with the browser closed. Free and private.
- [How to Transcribe Audio to Text for Free (Without Uploading It)](https://browser4tools.com/blog/how-to-transcribe-audio-to-text): Turn interviews, lectures, voice notes and videos into text and subtitles with Whisper running in your browser: models, accuracy tips, SRT vs VTT.
- [How to Write a Viral Hook: Harsh Truth, POV and Dark Humor](https://browser4tools.com/blog/how-to-write-viral-hooks): What makes a text hook stop the scroll, the three hook styles that keep working, and how to turn a messy idea into one in under 20 words. With free examples.
- [What to Eat With Diabetes, High BP or Kidney Disease](https://browser4tools.com/blog/what-to-eat-with-a-health-condition): One meal, three conditions, three different answers. How to judge a plate for diabetes, blood pressure, kidney disease and more, and what to do after a bad one.
- [Desi Food Calorie Chart: Roti, Salan, Biryani, Daal](https://browser4tools.com/blog/desi-food-calorie-chart): Calories, protein and fibre in Pakistani and Indian food: roti, paratha, chicken salan, aloo gosht, biryani, daal, sabzi, kebabs, chaat and sweets, per portion.
- [15 Common Grammar Mistakes and How to Fix Them](https://browser4tools.com/blog/common-grammar-mistakes-and-how-to-fix-them): Their vs they're, its vs it's, could of, alot, then vs than and other everyday grammar mistakes, with simple rules and a free checker to catch them.
- [Anal Fissure Diet: High-Fibre Foods That Help It Heal](https://browser4tools.com/blog/anal-fissure-diet-high-fiber-foods): What to eat with an anal fissure: 25–35 g fibre, enough water, desi and Western high-fibre foods, what to limit, a sample day, and when to see a doctor.
- [Barcode Types Explained: EAN-13, UPC-A, Code 128 and More](https://browser4tools.com/blog/barcode-types-explained-ean-upc-code-128): Which barcode should you use? EAN-13 and UPC-A for retail, Code 128 for shipping and stock, ITF-14 for cartons, Code 39 for badges. Free PNG and SVG barcodes.
- [CBC Test Results Explained: Hemoglobin, WBC and Platelets](https://browser4tools.com/blog/cbc-test-results-explained): Understand your complete blood count: hemoglobin, red cells, MCV, white cells, differential and platelets, with typical ranges and what high or low means.
- [Compound Interest Explained With Simple Examples](https://browser4tools.com/blog/compound-interest-explained-with-examples): How compound interest works, the formula, why monthly deposits and time matter more than you think, and worked examples you can try in a free calculator.
- [DASH Diet for High Blood Pressure: A Simple Guide](https://browser4tools.com/blog/dash-diet-for-high-blood-pressure): How the DASH diet lowers high blood pressure: sodium targets, servings per day, foods to eat and avoid, desi and Western meal ideas, and a sample day.
- [Diabetes Diet Chart: What to Eat and Avoid With Type 2](https://browser4tools.com/blog/diabetes-diet-chart-what-to-eat): A practical type 2 diabetes diet chart: carb portions, foods to eat and avoid, desi and Western meal ideas, a sample day, and tips for steady blood sugar.
- [Diarrhea Diet: What to Eat and Avoid to Recover Fast](https://browser4tools.com/blog/diarrhea-diet-what-to-eat-and-avoid): What to eat and drink with diarrhoea: ORS first, bland desi and Western meals like khichdi and toast, foods to avoid, a sample day and when to see a doctor.
- [Fatty Liver Diet: What to Eat and Avoid (MASLD/NAFLD)](https://browser4tools.com/blog/fatty-liver-diet-what-to-eat-and-avoid): A fatty liver diet plan: how much weight to lose, foods to eat and avoid, sugar and alcohol limits, desi and Western meals, and a sample day for NAFLD.
- [Foods That Lower Cholesterol: A Practical Diet Plan](https://browser4tools.com/blog/foods-that-lower-cholesterol): Foods that lower LDL cholesterol, what to limit, desi and Western swaps, a sample day, and how much saturated fat and fibre to aim for, based on guidelines.
- [Freelance Contract Template: Clauses Every Freelancer Needs](https://browser4tools.com/blog/freelance-contract-template-guide): The clauses that protect freelancers: scope, deposit, payment terms, revisions, ownership, confidentiality and cancellation, with example wording you can use.
- [Gestational Diabetes Diet: A Simple Meal Plan](https://browser4tools.com/blog/gestational-diabetes-diet-meal-plan): A gestational diabetes diet guide: carbs spread over meals and snacks, at least 175 g a day, foods to eat and limit, desi meals and a sample day in pregnancy.
- [Gout Diet: Low-Purine Foods to Eat and Avoid](https://browser4tools.com/blog/gout-diet-low-purine-foods): A gout diet guide: high- and low-purine foods, sugary drinks and alcohol, water targets, desi and Western meals, a sample day, and what to eat during a flare.
- [HbA1c and Blood Sugar Levels Explained (Normal Ranges)](https://browser4tools.com/blog/hba1c-and-blood-sugar-levels-explained): What HbA1c, fasting glucose and post-meal sugar results mean, with normal, prediabetes and diabetes ranges in mg/dL, mmol/L and mmol/mol.
- [Healthy Diet Plan for Beginners: A Simple Week of Eating](https://browser4tools.com/blog/healthy-diet-plan-for-beginners): A simple healthy diet plan for beginners: the plate method, portions, fibre and water targets, and an easy 7-day plan with desi and Western meals.
- [Heart Patient Diet Plan: What to Eat for a Healthy Heart](https://browser4tools.com/blog/heart-patient-diet-plan): A practical diet plan for heart patients: what to eat after a heart attack or with heart disease, foods to avoid, desi and Western meals, and a sample day.
- [How EMI Is Calculated: Formula, Examples and Tips](https://browser4tools.com/blog/how-emi-is-calculated): The EMI formula explained step by step, with car, personal and home loan examples, how tenure changes total interest, and how to lower your monthly instalment.
- [How Many Calories Do I Need per Day? BMR & TDEE Explained](https://browser4tools.com/blog/how-many-calories-do-i-need-per-day): Work out your daily calories with the Mifflin-St Jeor equation: BMR, TDEE, and targets to lose or gain weight safely. Step-by-step examples for men and women.
- [How Mortgage Amortization Works (With a Real Example)](https://browser4tools.com/blog/how-mortgage-amortization-works): Why early mortgage payments are mostly interest, how the payment is calculated, and how extra payments save years of interest, with a 300,000 example.
- [How Much Should I Charge as a Freelancer? Rate Formula](https://browser4tools.com/blog/how-much-should-i-charge-as-a-freelancer): Work out your freelance hourly and day rate from the income you want, your costs, tax and real billable hours, with worked examples and common mistakes.
- [How to Add a Logo to a QR Code (and Keep It Scannable)](https://browser4tools.com/blog/how-to-add-a-logo-to-a-qr-code): Put your logo in the middle of a QR code without breaking it: the right logo size, error correction level, colours and testing tips. Free PNG and SVG download.
- [How to Boost the Bass in a Song Without Distortion](https://browser4tools.com/blog/how-to-boost-bass-in-a-song): Boost the bass of any song cleanly: how much boost to use, why too much distorts, what to do on phone speakers, and settings that keep the low end punchy.
- [How to Calculate Crypto Capital Gains Tax (FIFO, LIFO, HIFO)](https://browser4tools.com/blog/how-to-calculate-crypto-capital-gains-tax): How crypto gains are worked out: cost basis, fees, short vs long-term holding, and how FIFO, LIFO and HIFO change your tax, with a simple worked example.
- [How to Calculate GPA: Semester and Cumulative (4.0 Scale)](https://browser4tools.com/blog/how-to-calculate-gpa): Step-by-step guide to calculating your semester and cumulative GPA on a 4.0 scale, with credits, letter grades, weighted Honors and AP courses, and examples.
- [How to Calculate Macros for Fat Loss and Muscle Gain](https://browser4tools.com/blog/how-to-calculate-macros-for-fat-loss-and-muscle): Turn your daily calories into grams of protein, carbs and fat. Balanced, high-protein, low-carb and keto splits explained with examples and sample meals.
- [How to Calculate Percentages Easily (With Examples)](https://browser4tools.com/blog/how-to-calculate-percentages-easily): Simple formulas for X% of a number, what percent one number is of another, percentage change, and adding or removing a percentage. Everyday worked examples.
- [How to Calculate VAT and GST: Add or Remove Tax Correctly](https://browser4tools.com/blog/how-to-calculate-vat-and-gst): The formulas to add VAT or GST to a price and remove it from a gross price, with worked UK, EU, India, Pakistan and UAE examples and the most common mistake.
- [How to Calculate Your Break-Even Point (Formula & Examples)](https://browser4tools.com/blog/how-to-calculate-break-even-point): Find how many units you must sell to cover your costs, your break-even revenue and the sales needed for a profit target, with worked examples.
- [How to Calculate Your Exact Age in Years, Months and Days](https://browser4tools.com/blog/how-to-calculate-exact-age): Work out your exact age from your date of birth, your age on a specific date for forms and exams, and how leap-year birthdays are handled. With examples.
- [How to Calculate Your One Rep Max (1RM) Safely](https://browser4tools.com/blog/how-to-calculate-one-rep-max): Estimate your one-rep max from any set of 1–12 reps with the Epley and Brzycki formulas, then use percentages of 1RM to plan strength and muscle training.
- [How to Check DNS Records (A, MX, TXT) and Your IP Address](https://browser4tools.com/blog/how-to-check-dns-records-and-your-ip): Look up any domain's DNS records and your own public IP, location and ISP. What A, AAAA, MX, TXT, NS, CNAME, SOA and CAA records mean, plus SPF and DMARC.
- [How to Check If Your Diet Is Healthy (Calories, Fiber, Water)](https://browser4tools.com/blog/how-to-check-if-your-diet-is-healthy): Paste what you ate today and check calories, fiber, protein, sugar and salt against daily targets, plus how much water to drink. Desi and Western examples.
- [How to Choose a Diet for Your Health Condition](https://browser4tools.com/blog/how-to-choose-a-diet-for-your-health-condition): How diets for diabetes, blood pressure, cholesterol, kidney disease, PCOS, gout and more differ, and how to safely combine diets for two conditions.
- [How to Compress a Video for WhatsApp and Email](https://browser4tools.com/blog/how-to-compress-video-for-whatsapp-and-email): Make large videos small enough for WhatsApp, email and upload forms without an app. Pick the right resolution and quality, free, private, no watermark.
- [How to Compress an Image to 20 KB, 50 KB or 100 KB](https://browser4tools.com/blog/how-to-compress-image-to-20kb-50kb-100kb): Upload form says your photo is too big? Compress any image to under 20 KB, 50 KB, 100 KB, 200 KB, 500 KB or 1 MB in seconds, keeping the best quality.
- [How to Compress Images Without Losing Quality](https://browser4tools.com/blog/how-to-compress-images-without-losing-quality): Shrink JPG, PNG and WebP photos by 70% or more with no visible quality loss. Which settings to use, which format to pick, and the mistakes to avoid.
- [How to Convert a Video to GIF (Small, Sharp, Free)](https://browser4tools.com/blog/how-to-convert-video-to-gif): Turn any video clip into a looping GIF in your browser. Learn the best length, frame rate and width for small, sharp GIFs. Free, no upload, no watermark.
- [How to Convert HEIC to JPG (iPhone Photos) for Free](https://browser4tools.com/blog/how-to-convert-heic-to-jpg): Can't open iPhone photos on Windows or upload them to a form? Convert HEIC to JPG in your browser, in batches, with no app and no upload. Step-by-step.
- [How to Convert Images to PDF (JPG, PNG, HEIC) for Free](https://browser4tools.com/blog/how-to-convert-images-to-pdf): Turn photos, scans and screenshots into one PDF, in the order you choose, with A4 or Letter pages. Free, no upload, works on phones and computers.
- [How to Convert iPhone Photos (HEIC) to PDF](https://browser4tools.com/blog/how-to-convert-iphone-photos-to-pdf): Put iPhone HEIC photos into one PDF, one photo per page, on Windows, Mac or the phone itself. No app, no upload. Great for receipts, notes and documents.
- [How to Convert PDF to JPG (Single Pages or All Pages)](https://browser4tools.com/blog/how-to-convert-pdf-to-jpg): Save PDF pages as high-quality JPG images: pick the pages, choose 72, 150 or 300 DPI, and download one JPG or a zip. Free, no upload, works on any device.
- [How to Convert PDF to Word (Editable DOCX) for Free](https://browser4tools.com/blog/how-to-convert-pdf-to-word): Turn a PDF into an editable Word file that looks the same: fonts, positions, logos, lines and colours kept. Or get plain flowing text. Free, private, no upload.
- [How to Convert WebP to JPG (and Why You Need To)](https://browser4tools.com/blog/how-to-convert-webp-to-jpg): Saved an image and got a .webp file you can't open or upload? Convert WebP to JPG in seconds, in batches, without an app or upload. Tips and fixes inside.
- [How to Convert Word to PDF Without Microsoft Word](https://browser4tools.com/blog/how-to-convert-word-to-pdf): Turn a .docx file into a PDF in your browser with the same page size, margins, spacing and logo positions as in Word. Free, private, and works on phones too.
- [How to Count Words and Estimate Reading Time Online](https://browser4tools.com/blog/how-to-count-words-and-reading-time): Count words, characters, sentences and paragraphs, estimate reading and speaking time, and check limits for X, Instagram, SMS and SEO titles in seconds.
- [How to Create a Favicon for Your Website (ICO, PNG, Apple)](https://browser4tools.com/blog/how-to-create-a-favicon-for-your-website): Make a favicon.ico plus Apple touch and Android icons from text, an emoji or your logo, then add them to your site with the right HTML. WordPress tips too.
- [How to Crop Video for TikTok, Reels and Shorts (9:16)](https://browser4tools.com/blog/how-to-crop-video-for-tiktok-reels-shorts): Turn landscape or square videos into 9:16 vertical clips for TikTok, Instagram Reels and YouTube Shorts. Free, in your browser, no upload or watermark.
- [How to Edit Videos in Your Browser (No App, No Watermark)](https://browser4tools.com/blog/how-to-edit-videos-in-your-browser): Crop, trim, rotate, speed up, mute and compress videos right in your browser with a free editor. No upload, no watermark, no app to install.
- [How to Extract Audio From a Video to MP3 (Free)](https://browser4tools.com/blog/how-to-extract-audio-from-video-to-mp3): Save the sound from any video as an MP3 in your browser: music, voice notes, lectures or interviews. Trim first, keep high quality, no upload or sign-up.
- [How to Improve Your Readability Score (Flesch Explained)](https://browser4tools.com/blog/how-to-improve-readability-score): What Flesch Reading Ease and grade level mean, what score to aim for, and 8 practical ways to make your writing easier to read, with before and after examples.
- [How to Make a Passport Size Photo at Home](https://browser4tools.com/blog/how-to-make-passport-size-photo-at-home): Take a passport or visa photo with your phone and size it to 2 × 2 inches or 35 × 45 mm at 300 DPI, ready to print or upload. Rules, tips and sizes.
- [How to Make a QR Code for Free (Links, Text and Wi-Fi)](https://browser4tools.com/blog/how-to-make-a-qr-code-free): Create a free QR code for a website, text or Wi-Fi network that never expires. Choose error correction, colours and size, then download PNG or SVG for print.
- [How to Make a Song Mashup: Tempo, Crossfades and Layers](https://browser4tools.com/blog/how-to-make-a-song-mashup): Make your own song mashup: choosing songs that fit, matching BPM, crossfading or layering vocals over a beat, and the filter tricks that keep it clean.
- [How to Make an Invoice for Free (Step by Step, With Examples)](https://browser4tools.com/blog/how-to-make-an-invoice-free): Learn what to put on an invoice, how to number it, which payment terms to use, and how to make a clean PDF invoice for free in a few minutes.
- [How to Make Nightcore Songs Online (Speed and Pitch Guide)](https://browser4tools.com/blog/how-to-make-nightcore-songs): Make nightcore versions of songs: the right speed-up, why the pitch rises, how to keep vocals listenable, and settings for energetic, clean edits.
- [How to Make Slowed and Reverb Songs (Best Settings)](https://browser4tools.com/blog/how-to-make-slowed-and-reverb-songs): Make your own slowed and reverb edits: the speed, reverb and room settings that work, why the sound feels dreamy, and how to avoid a muddy mix.
- [How to Measure Body Fat at Home With a Tape Measure](https://browser4tools.com/blog/how-to-measure-body-fat-at-home): Estimate your body fat percentage with the US Navy method: where to measure your neck, waist and hips, what the results mean, and how accurate it is.
- [How to Merge PDF Files Into One (Free, No Upload)](https://browser4tools.com/blog/how-to-merge-pdf-files): Combine several PDFs into one file in the order you choose, with no watermark and no upload. Step-by-step guide, tips for big files and common fixes.
- [How to Open DOCX Files Without Microsoft Word](https://browser4tools.com/blog/how-to-open-docx-files-without-word): Read .docx documents in your browser with the layout, images and page breaks intact. Zoom, search, print or convert to PDF. Free, no upload, no sign-up.
- [How to Open Excel Files Without Excel (XLSX, XLS, CSV)](https://browser4tools.com/blog/how-to-open-excel-files-without-excel): View .xlsx, .xls, .ods and .csv spreadsheets in your browser without Microsoft Excel: sheets, formulas, search, sort and CSV export. Free and private.
- [How to Read a Blood Test Report: A Plain-English Guide](https://browser4tools.com/blog/how-to-read-a-blood-test-report): Learn how to read your blood test report: what reference ranges, H and L flags and units mean, which results matter most, and when to call a doctor.
- [How to Remove Audio From a Video (Mute It Free)](https://browser4tools.com/blog/how-to-remove-audio-from-a-video): Remove the sound from MP4, MOV, WebM or MKV videos in seconds without losing picture quality. Free, private, in your browser, with no watermark.
- [How to Remove Duplicate Lines From a List (and Sort It)](https://browser4tools.com/blog/how-to-remove-duplicate-lines-from-a-list): Remove duplicate lines from email lists, keywords, names or URLs, ignore case and extra spaces, drop empty lines and sort A to Z, Z to A or by length.
- [How to Remove Formatting From Copied Text (Paste as Plain Text)](https://browser4tools.com/blog/how-to-remove-formatting-from-copied-text): Strip fonts, colours, hidden spaces and broken line wraps from text copied from websites, PDFs, Word or email, and paste clean plain text anywhere.
- [How to Remove Line Breaks From Text (Keep or Join Paragraphs)](https://browser4tools.com/blog/how-to-remove-line-breaks-from-text): Remove unwanted line breaks from text copied from PDFs and emails, keep paragraph breaks if you want, or turn a column of items into one comma-separated line.
- [How to Resize an Image Online (Pixels or Percent)](https://browser4tools.com/blog/how-to-resize-an-image-online): Resize photos to any width and height, or by percentage, without stretching faces. Learn fill vs fit, how to avoid blur, and how to resize many at once.
- [How to Rotate a Video 90 or 180 Degrees (and Flip It)](https://browser4tools.com/blog/how-to-rotate-a-video): Fix sideways or upside-down phone videos: rotate 90° or 180°, mirror or flip them, and save a new MP4. Free, private, in your browser, no watermark.
- [How to Speed Up or Slow Down a Video (Keep the Pitch)](https://browser4tools.com/blog/how-to-speed-up-or-slow-down-a-video): Change a video's speed from 0.25× slow motion to 4× fast, with the voice keeping its normal pitch. Free, private, in your browser, no watermark.
- [How to Trim a Video Without Losing Quality](https://browser4tools.com/blog/how-to-trim-a-video-without-losing-quality): Cut the start or end off a video in seconds without re-encoding, or make a frame-exact cut. Works with MP4, MOV, WebM and MKV in your browser, free.
- [How to Write a Price Quote That Wins the Job](https://browser4tools.com/blog/how-to-write-a-price-quote): What to put in a quote or estimate, how to price each part, how long it should be valid, and example wording you can copy. Make a PDF quote free.
- [How to Write TikTok and Reels Captions and Hashtags](https://browser4tools.com/blog/how-to-write-tiktok-and-reels-captions-hashtags): Write hooks, captions and hashtags that help short videos get found on TikTok, Instagram Reels and YouTube Shorts, with templates, limits and real examples.
- [Instagram Image Sizes Guide: Posts, Stories, Reels](https://browser4tools.com/blog/instagram-image-sizes-guide): The best Instagram sizes for portrait, square and landscape posts, stories and reels, plus how to post a full photo without Instagram cropping it.
- [JPG vs PNG vs WebP: Which Image Format Should You Use?](https://browser4tools.com/blog/jpg-vs-png-vs-webp-which-format): A plain comparison of JPG, PNG, WebP, AVIF and HEIC: quality, file size, transparency and compatibility, with the best choice for every common job.
- [Kidney Disease Diet: Protein, Salt and Potassium Guide](https://browser4tools.com/blog/kidney-disease-diet-guide): A kidney disease (CKD stage 3–5, not on dialysis) diet guide: protein and salt limits, when potassium and phosphorus matter, desi meals and a sample day.
- [Kidney Function Test Explained: Creatinine, eGFR and Urea](https://browser4tools.com/blog/kidney-function-test-creatinine-egfr-explained): What creatinine, eGFR, urea, BUN, uric acid and electrolytes on a kidney function test mean, with typical ranges, CKD stages and when to see a doctor.
- [Lipid Profile Results Explained: LDL, HDL, Triglycerides](https://browser4tools.com/blog/lipid-profile-results-explained): What your cholesterol test means: total cholesterol, LDL, HDL, triglycerides and non-HDL, with desirable ranges in mg/dL and mmol/L and next steps.
- [Liver Function Test Results Explained: ALT, AST, Bilirubin](https://browser4tools.com/blog/liver-function-test-results-explained): Understand your liver function test (LFT): ALT (SGPT), AST (SGOT), ALP, GGT, bilirubin and albumin, typical ranges, and what raised results can mean.
- [Low-FODMAP Diet for IBS: A Beginner's Guide](https://browser4tools.com/blog/low-fodmap-diet-for-ibs-beginners-guide): A beginner's guide to the low-FODMAP diet for IBS: the 3 phases, high and low FODMAP foods, desi and Western swaps, a sample day, and how to reintroduce foods.
- [PCOS Diet Plan: Foods to Eat for Hormones and Weight](https://browser4tools.com/blog/pcos-diet-plan-guide): A practical PCOS diet plan: lower-GI carbs, protein at each meal, foods to eat and limit, desi and Western meals, a sample day, and realistic weight-loss goals.
- [Profit Margin vs Markup: The Difference, With Examples](https://browser4tools.com/blog/profit-margin-vs-markup-explained): Margin and markup are not the same. See the formulas, a conversion table and worked examples, and learn how to price for a target margin without losing money.
- [Text to Speech Guide: Natural AI Voices and Free MP3s](https://browser4tools.com/blog/text-to-speech-guide-natural-ai-voices): How to turn text into natural-sounding speech and download it as an MP3: choosing a voice, writing text that sounds good aloud, limits and privacy.
- [The Pomodoro Technique: How to Study Better in 25 Minutes](https://browser4tools.com/blog/pomodoro-technique-how-to-study-better): How the Pomodoro Technique works, why 25/5 blocks help you focus, which variations suit deep work, and how lo-fi or white noise can help you study longer.
- [Thyroid Diet for Hypothyroidism: Foods and Timing](https://browser4tools.com/blog/thyroid-diet-hypothyroidism-foods): A practical hypothyroidism diet: what to eat, iodine and selenium facts, when to take levothyroxine around food, soy and cabbage myths, and a sample day.
- [Thyroid Test Results Explained: TSH, Free T4 and T3](https://browser4tools.com/blog/thyroid-test-results-tsh-t3-t4-explained): Understand your thyroid test: what TSH, free T4, T3 and anti-TPO show, typical ranges, and what high or low TSH can mean for an under- or overactive thyroid.
- [Title Case vs Sentence Case: Which to Use and When](https://browser4tools.com/blog/title-case-vs-sentence-case): The difference between Title Case and Sentence case, the capitalization rules, when to use each for headings and titles, plus camelCase and snake_case for code.
- [Vitamin D Levels Explained: Deficiency, Normal and High](https://browser4tools.com/blog/vitamin-d-levels-explained): What your 25-OH vitamin D result means in ng/mL and nmol/L, the deficient, insufficient and sufficient ranges, causes of low levels, and safe next steps.
- [Waist-to-Hip Ratio: What It Means and Healthy Ranges](https://browser4tools.com/blog/waist-to-hip-ratio-what-it-means): Learn how to measure your waist-to-hip ratio, the WHO thresholds of 0.90 for men and 0.85 for women, and why belly fat matters more than weight alone.
- [What Do I Need on My Final Exam? Formula and Examples](https://browser4tools.com/blog/what-do-i-need-on-my-final-exam): Find the score you need on your final exam to reach your target grade, using your current grade and the final's weight. Formula, worked examples and tips.
- [What Is 8D Audio and How Do You Make It?](https://browser4tools.com/blog/what-is-8d-audio): 8D audio explained: how the moving left-right effect works, why you need headphones, and the rotation, width and reverb settings that sound smooth.
- [What Is a Healthy BMI? Chart, Formula and Examples](https://browser4tools.com/blog/what-is-a-healthy-bmi): Learn what BMI means, the healthy range of 18.5 to 24.9, how to calculate it in kg or pounds, and when BMI can be misleading. With worked examples.

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- [About Browser Tools](https://browser4tools.com/about): who runs the site and how the tools work
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