# Browser Tools > Browser Tools is a free collection of 101 online tools for images, PDFs, video, business documents, calculators and text. Every tool except Text to Speech runs entirely in the visitor's web browser: files and numbers are never uploaded to a server. No sign-up, no watermark and no usage limits. - Privacy: files are processed on the user's own device; the site's Content Security Policy blocks sending them anywhere. Text to Speech is the one exception and sends only its text to the voice service. - Cost: free. No account is needed. - Works in current Chrome, Edge, Firefox and Safari on desktop and mobile. - Calculators give estimates for planning, not financial, medical, tax or legal advice. Last updated: 2026-10-29. Full text of every guide: https://hally-tools.duckdns.org/llms-full.txt ## Image - [Compress Image](https://hally-tools.duckdns.org/image-compress): Shrink JPG, PNG and WebP, often by 70%+. - [Compress to Exact KB](https://hally-tools.duckdns.org/compress-image-to-kb): Hit a size limit: 20 KB, 50 KB, 100 KB… - [Resize Image](https://hally-tools.duckdns.org/resize-image): Any width and height, or by percentage. - [Passport Size Photo](https://hally-tools.duckdns.org/passport-size-photo): 2 × 2 in, 35 × 45 mm and more, print-ready. - [Resize for Instagram](https://hally-tools.duckdns.org/resize-image-for-instagram): Square, portrait and story sizes. - [YouTube Thumbnail Resizer](https://hally-tools.duckdns.org/youtube-thumbnail-resizer): 1280 × 720 under 2 MB. - [HEIC to JPG](https://hally-tools.duckdns.org/heic-to-jpg): Open iPhone photos anywhere. - [WebP to JPG](https://hally-tools.duckdns.org/webp-to-jpg): Save WebP images as normal JPGs. - [AVIF to JPG](https://hally-tools.duckdns.org/avif-to-jpg): Convert AVIF images to JPG. - [WebP to PNG](https://hally-tools.duckdns.org/webp-to-png) - [PNG to JPG](https://hally-tools.duckdns.org/png-to-jpg) - [JPG to PNG](https://hally-tools.duckdns.org/jpg-to-png) - [JPG to PDF](https://hally-tools.duckdns.org/jpg-to-pdf) - [PNG to PDF](https://hally-tools.duckdns.org/png-to-pdf) - [Compress to 20 KB](https://hally-tools.duckdns.org/compress-image-to-20kb) - [Compress to 50 KB](https://hally-tools.duckdns.org/compress-image-to-50kb) - [Compress to 100 KB](https://hally-tools.duckdns.org/compress-image-to-100kb) - [Compress to 200 KB](https://hally-tools.duckdns.org/compress-image-to-200kb) - [Compress to 500 KB](https://hally-tools.duckdns.org/compress-image-to-500kb) - [Compress to 1 MB](https://hally-tools.duckdns.org/compress-image-to-1mb) ## Business - [Invoice Generator](https://hally-tools.duckdns.org/invoice-generator): Fill a form, download a clean PDF invoice. - [Quote & Estimate Maker](https://hally-tools.duckdns.org/quote-generator): Send professional price quotes. - [Freelance Contract](https://hally-tools.duckdns.org/freelance-contract-generator): A clear service agreement in minutes. - [Hourly Rate Calculator](https://hally-tools.duckdns.org/freelance-hourly-rate-calculator): What to charge to hit your income. - [Profit Margin Calculator](https://hally-tools.duckdns.org/profit-margin-calculator): Margin, markup and selling price. - [VAT & GST Calculator](https://hally-tools.duckdns.org/vat-calculator): Add or remove sales tax. - [Break-Even Calculator](https://hally-tools.duckdns.org/break-even-calculator): Units you must sell to cover costs. ## Money - [Home Loan Calculator](https://hally-tools.duckdns.org/home-loan-calculator): Monthly payment and full amortization schedule. - [EMI Calculator](https://hally-tools.duckdns.org/emi-calculator): Monthly instalments for any loan. - [Compound Interest](https://hally-tools.duckdns.org/compound-interest-calculator): See savings grow year by year. - [Crypto Capital Gains](https://hally-tools.duckdns.org/crypto-capital-gains-calculator): FIFO, LIFO and HIFO gains and tax. ## Health & fitness - [Food Calorie & Fiber Checker](https://hally-tools.duckdns.org/food-calorie-checker): Paste what you ate: calories, fiber, water. - [BMI Calculator](https://hally-tools.duckdns.org/bmi-calculator): Body mass index and healthy weight range. - [Calorie Calculator](https://hally-tools.duckdns.org/calorie-calculator): Daily calories to lose, keep or gain. - [Macro Meal Planner](https://hally-tools.duckdns.org/macro-calculator): Protein, carbs and fat per meal. - [Body Fat Calculator](https://hally-tools.duckdns.org/body-fat-calculator): US Navy method with a tape measure. - [Ideal Weight Calculator](https://hally-tools.duckdns.org/ideal-weight-calculator): Four formulas and a healthy range. - [One Rep Max Calculator](https://hally-tools.duckdns.org/one-rep-max-calculator): Your 1RM and training percentages. - [Waist-to-Hip Ratio](https://hally-tools.duckdns.org/waist-to-hip-ratio-calculator): Body shape and health risk. ## Medical - [Blood Test Report Checker](https://hally-tools.duckdns.org/blood-test-checker): Paste results: what's low, normal or high. - [Diet Plan for Health Conditions](https://hally-tools.duckdns.org/diet-plan-for-health-conditions): 7-day meal plans for diabetes, BP, kidney and more. - [Diabetes Diet Plan](https://hally-tools.duckdns.org/diabetes-diet-plan): Steady blood sugar, desi and Western meals. - [HbA1c & Blood Sugar Checker](https://hally-tools.duckdns.org/hba1c-blood-sugar-checker): Normal, prediabetes or diabetes range. - [CBC Test](https://hally-tools.duckdns.org/cbc-test-checker) - [Lipid Profile](https://hally-tools.duckdns.org/lipid-profile-checker) - [Thyroid Test](https://hally-tools.duckdns.org/thyroid-test-checker) - [Liver Function Test](https://hally-tools.duckdns.org/liver-function-test-checker) - [Kidney Function Test](https://hally-tools.duckdns.org/kidney-function-test-checker) - [Vitamin D Test](https://hally-tools.duckdns.org/vitamin-d-test-checker) - [High BP Diet](https://hally-tools.duckdns.org/high-blood-pressure-diet-plan) - [Cholesterol Diet](https://hally-tools.duckdns.org/cholesterol-lowering-diet-plan) - [Fatty Liver Diet](https://hally-tools.duckdns.org/fatty-liver-diet-plan) - [Kidney Disease Diet](https://hally-tools.duckdns.org/kidney-disease-diet-plan) - [PCOS Diet](https://hally-tools.duckdns.org/pcos-diet-plan) - [Thyroid Diet](https://hally-tools.duckdns.org/thyroid-diet-plan) - [Gout Diet](https://hally-tools.duckdns.org/gout-diet-plan) - [Low-FODMAP (IBS) Diet](https://hally-tools.duckdns.org/low-fodmap-diet-plan) - [Gestational Diabetes Diet](https://hally-tools.duckdns.org/gestational-diabetes-diet-plan) - [Diarrhea Diet](https://hally-tools.duckdns.org/diarrhea-diet-plan) - [Anal Fissure Diet](https://hally-tools.duckdns.org/anal-fissure-diet-plan) ## Students & everyday - [Pomodoro Focus Timer](https://hally-tools.duckdns.org/pomodoro-timer): 25/5 study blocks with lo-fi and white noise. - [GPA Calculator](https://hally-tools.duckdns.org/gpa-calculator): Semester and cumulative GPA. - [Final Grade Calculator](https://hally-tools.duckdns.org/final-grade-calculator): What you need on the final exam. - [Percentage Calculator](https://hally-tools.duckdns.org/percentage-calculator): Percent of, change and difference. - [Age Calculator](https://hally-tools.duckdns.org/age-calculator): Exact age in years, months and days. ## Text - [Grammar & Writing Checker](https://hally-tools.duckdns.org/grammar-checker): Spelling, grammar, style and readability. - [Caption & Hashtag Generator](https://hally-tools.duckdns.org/video-caption-hashtag-generator): Titles, captions and hashtags for TikTok and Reels. - [Word Counter](https://hally-tools.duckdns.org/word-counter): Words, characters and reading time. - [Remove Formatting](https://hally-tools.duckdns.org/remove-formatting): Paste messy text, get clean plain text. - [Case Converter](https://hally-tools.duckdns.org/case-converter): UPPER, lower, Title, camelCase and more. - [Remove Line Breaks](https://hally-tools.duckdns.org/remove-line-breaks): Join lines into one paragraph. - [Remove Duplicate Lines](https://hally-tools.duckdns.org/remove-duplicate-lines): Dedupe and sort lists. - [Readability Checker](https://hally-tools.duckdns.org/readability-checker) ## PDF & Office - [Excel Viewer](https://hally-tools.duckdns.org/excel-viewer): Open .xlsx, .xls and .csv files online. - [Word Viewer](https://hally-tools.duckdns.org/word-viewer): Read .docx documents without Word. - [Word to PDF](https://hally-tools.duckdns.org/word-to-pdf): Turn .docx files into PDFs. - [PDF to Word](https://hally-tools.duckdns.org/pdf-to-word): Editable .docx from any PDF. - [Merge PDF](https://hally-tools.duckdns.org/pdf-merge): Combine PDFs in any order. - [PDF to JPG](https://hally-tools.duckdns.org/pdf-to-jpg): Export the pages you pick as images. - [Image to PDF](https://hally-tools.duckdns.org/image-to-pdf): JPG, PNG and HEIC into one PDF. - [HEIC to PDF](https://hally-tools.duckdns.org/heic-to-pdf): iPhone photos into one PDF. ## Video & audio - [Slowed + Reverb Maker](https://hally-tools.duckdns.org/slowed-and-reverb-maker): Make any song slowed and reverb, listen free. - [Song Mashup Maker](https://hally-tools.duckdns.org/song-mashup-maker): Blend 2–4 songs into one mashup. - [Video Editor](https://hally-tools.duckdns.org/video-editor): Crop, rotate, speed up and compress videos. - [Video to GIF](https://hally-tools.duckdns.org/video-to-gif): Turn a clip into a looping GIF. - [Video to MP3](https://hally-tools.duckdns.org/video-to-mp3): Extract the audio from any video. - [Compress Video](https://hally-tools.duckdns.org/video-compressor): Make videos smaller for WhatsApp and email. - [Trim Video](https://hally-tools.duckdns.org/video-trim): Cut MP4, MOV or WebM without re-encoding. - [Mute Video](https://hally-tools.duckdns.org/mute-video): Remove the sound, keep the picture. - [Text to Speech](https://hally-tools.duckdns.org/text-to-speech): Natural AI voices, download as MP3. - [Nightcore Maker](https://hally-tools.duckdns.org/nightcore-maker) - [8D Audio Converter](https://hally-tools.duckdns.org/8d-audio-converter) - [Bass Booster](https://hally-tools.duckdns.org/bass-booster) - [Crop Video (9:16)](https://hally-tools.duckdns.org/crop-video) - [Change Video Speed](https://hally-tools.duckdns.org/change-video-speed) - [Rotate Video](https://hally-tools.duckdns.org/rotate-video) ## Generators - [QR Code Generator](https://hally-tools.duckdns.org/qr-code-generator): Links, text and Wi-Fi. PNG or SVG. - [QR Code with Logo](https://hally-tools.duckdns.org/qr-code-with-logo): Put your logo in the middle. - [Barcode Generator](https://hally-tools.duckdns.org/barcode-generator): EAN, UPC, Code 128 and more. - [IP & DNS Lookup](https://hally-tools.duckdns.org/dns-ip-lookup): Your IP, location and any site's DNS records. - [Favicon Generator](https://hally-tools.duckdns.org/favicon-generator): favicon.ico and app icons from text or an image. ## Blog - [15 Common Grammar Mistakes and How to Fix Them](https://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/blog/how-to-convert-pdf-to-word): Get editable text back from a PDF: headings, bold, italic and lists are kept in a .docx you can open in Word or Google Docs. Free, private, no upload. - [How to Convert WebP to JPG (and Why You Need To)](https://hally-tools.duckdns.org/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://hally-tools.duckdns.org/blog/how-to-convert-word-to-pdf): Turn a .docx file into a PDF in your browser: headings, lists, tables and images kept, real selectable text. Free, private, and works on phones too. - [How to Count Words and Estimate Reading Time Online](https://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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://hally-tools.duckdns.org/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. - [What Is an AVIF File and How to Convert It to JPG](https://hally-tools.duckdns.org/blog/what-is-avif-and-how-to-convert-it): AVIF is the new, tiny image format many sites and phones now use. Learn what it is, which apps open it, and how to convert AVIF to JPG or PNG for free. - [What Is My Ideal Weight for My Height? 4 Formulas Compared](https://hally-tools.duckdns.org/blog/what-is-my-ideal-weight-for-my-height): Find your ideal weight by height with the Devine, Robinson, Miller and Hamwi formulas and the healthy BMI range. Worked examples for men and women in kg and lb. - [YouTube Thumbnail Size Guide: 1280 × 720 Under 2 MB](https://hally-tools.duckdns.org/blog/youtube-thumbnail-size-guide): The right YouTube thumbnail size, file limits and formats, plus channel banner and profile sizes, and how to fix 'thumbnail too large' errors fast. ## About - [About Browser Tools](https://hally-tools.duckdns.org/about): who runs the site and how the tools work - [Privacy policy](https://hally-tools.duckdns.org/privacy)