All tools
189 free utilities that run entirely in your browser. Search by name or by what you want to do — nothing is uploaded. Need a specific file conversion? Browse the file converters.
Popular file converters
All converters →AI tools
AI-powered writers, summarizers and assistants.
AI Resume Builder
ATS-optimized resume in 60 seconds.
AI Cover Letter Generator
Write a tailored cover letter in seconds.
AI Blog Writer
Write full, SEO-ready blog posts.
AI Product Description Generator
Sales copy for any product, instantly.
AI Ad Copy Generator
Platform-ready ad copy in 5 variants.
AI LinkedIn Post Generator
Scroll-stopping LinkedIn posts.
AI Meeting Notes Summarizer
Turn transcripts into action items.
AI Proposal Generator
Win clients with instant proposals.
AI Humanizer
Make AI text sound human.
AI Paraphrasing Tool
Rewrite text in fresh words.
AI Grammar Checker
Fix grammar, spelling & clarity.
AI Text Summarizer
Summarize anything instantly.
AI Translator
Natural translation, 12+ languages.
AI Email Writer
Draft the perfect email fast.
AI Essay Writer
Structured essays in seconds.
AI Caption Generator
5 scroll-stopping captions.
AI Hashtag Generator
Reach-optimized hashtags.
AI Image Generator
Text to image, free.
AI Text to Speech
Natural AI voice from text.
AI Speech to Text
Transcribe audio to text.
AI Content Detector
Check if text reads as AI.
AI YouTube SEO Generator
Titles, description and tags for any video.
Video tools
Compress, convert, trim and caption video — in your browser.
Video Compressor
Shrink video file size without losing quality.
Video Converter
Convert video to MP4, WebM, MOV, MKV, GIF or MP3.
Video to GIF
Turn any video clip into an animated GIF.
Video Trimmer
Cut and trim video clips online.
Video to MP3
Extract audio from any video as MP3.
Video Caption Generator
Auto-generate subtitles for any video.
Mute Video
Remove the audio from a video.
Video Resizer
Crop video for Reels, TikTok, Shorts & square.
Rotate Video
Rotate or flip a video the right way up.
Video Speed Changer
Speed up or slow down a video.
Subtitle Converter
Convert SRT to VTT, edit and re-time subtitles.
Add Watermark to Video
Stamp text over a video.
GIF Maker
Turn images into an animated GIF.
YouTube Transcript Generator
Get the transcript of any YouTube video.
Subtitle Translator
Translate SRT & VTT subtitles with AI.
Reel & Shorts Caption Generator
Animated burned-in captions for Reels & Shorts.
Audio tools
Convert, trim, transcribe and clean up audio.
Audio to Text Transcription
Transcribe audio or video to text with AI.
Audio Converter
Convert audio to MP3, WAV, M4A, OGG or FLAC.
Audio Compressor
Reduce audio file size.
Audio Trimmer
Cut audio and make ringtones.
Volume Booster
Make audio louder or normalize it.
Voice Recorder
Record audio from your microphone.
Audio Joiner
Merge multiple audio files into one.
Image tools
Compress, convert, resize and clean up images.
Image Compressor
Shrink images without losing visible quality.
Image Converter
Convert between PNG, JPG, WebP and AVIF.
Image Resizer
Resize images to exact dimensions.
Background Remover
Erase image backgrounds automatically.
HEIC to JPG
Convert iPhone HEIC photos to JPG or PNG.
Image to Text (OCR)
Extract text from any image.
Image Cropper
Crop images with social aspect-ratio presets.
Meme Generator
Add top & bottom text to any image.
Image Upscaler
Enlarge images to 2× or 4×.
Signature Generator
Create a signature you can download as PNG.
Add Watermark to Image
Stamp text watermarks on photos.
Image to Base64
Encode an image as a data URI.
Base64 to Image
Decode Base64 back to an image.
QR Code Scanner
Read a QR code from an image.
PDF tools
Merge, split and convert PDF documents.
Merge PDF
Combine several PDFs into one file.
Split PDF
Extract pages or split a PDF apart.
PDF to Image
Convert PDF pages to PNG or JPG.
Image to PDF
Turn images into a single PDF.
PDF to Text
Extract text from PDFs, including scans.
PDF to Word
Convert PDF into an editable Word doc.
Compress PDF
Reduce PDF file size online.
Organize PDF Pages
Rotate, delete and reorder PDF pages.
Watermark PDF
Add a text watermark to every PDF page.
Sign PDF
Draw your signature and sign a PDF online.
Calculators
Money, loans, interest, percentages and dates.
Age Calculator
Find your exact age in years, months and days.
Percentage Calculator
Percentages, increases and differences made easy.
EMI Calculator
Monthly loan EMI, interest and totals.
SIP Calculator
Estimate mutual fund SIP returns.
Compound Interest Calculator
See how savings grow over time.
GST Calculator
Add or remove GST in seconds.
CAGR Calculator
Compound annual growth rate of an investment.
FD Calculator
Fixed deposit maturity and interest.
BMI Calculator
Check your Body Mass Index in seconds.
Mortgage Calculator
Estimate your monthly home loan payment.
Loan Calculator
Monthly payment, interest and total cost.
Tip Calculator
Tip and split the bill instantly.
Calorie Calculator (TDEE)
Find your daily calorie needs.
Date Difference Calculator
Days, weeks and months between dates.
Discount Calculator
Sale price and savings, instantly.
Average Calculator
Mean, median, sum and range.
Salary Calculator
Hourly to annual pay, and back.
GPA Calculator
Calculate your grade point average.
Temperature Converter
Celsius, Fahrenheit and Kelvin.
Unit Converter
Length, weight, volume, speed & more.
Countdown to Date
Live countdown to any event.
Number to Words
Spell out any number in English.
Aspect Ratio Calculator
Resize keeping the same ratio.
Time Duration Calculator
Hours and minutes between two times.
Currency Converter
Convert between 30+ currencies with live rates.
Sales Tax Calculator
Add or remove sales tax from any price.
ROI Calculator
Return on investment and annualized ROI.
Simple Interest Calculator
Interest and total from principal, rate and time.
Profit Margin Calculator
Gross margin, profit and markup from cost & price.
Markup Calculator
Selling price and profit from cost and markup.
Savings Calculator
Project your savings with monthly deposits.
Pregnancy Due Date Calculator
Estimate your baby's due date from your last period.
Body Fat Calculator
Estimate body fat % with the Navy method.
Ideal Weight Calculator
Healthy weight for your height and sex.
Running Pace Calculator
Pace per km/mile and speed from time & distance.
Grade Calculator
Weighted class grade from your assignments.
Fraction Calculator
Add, subtract, multiply and divide fractions.
Scientific Calculator
Trig, logs, powers and roots — free online.
Standard Deviation Calculator
Sample & population standard deviation.
Square Footage Calculator
Area in sq ft or m² — plus material cost.
Time Card Calculator
Add up weekly hours, breaks and pay.
SEO & web tools
Meta tags, previews and on-page SEO helpers.
AI Meta Description Generator
SEO titles & meta descriptions that get clicks.
LSI Keyword Generator
Semantic keywords & subtopics for topical depth.
Blog Title Generator
Catchy, SEO-friendly headlines in seconds.
Keyword Generator
Hundreds of real keyword ideas from Google.
Schema Markup Generator
Valid JSON-LD structured data, no code.
On-Page SEO Checker
Audit any page's on-page SEO in seconds.
Meta Tag Analyzer
Audit a live page's meta & social tags.
Redirect Checker
Trace the full 301/302 redirect chain.
HTTP Header Checker
Inspect any URL's response headers.
Question Keyword Finder
The questions people ask about any topic.
Page Speed Test
Core Web Vitals & Lighthouse score for any URL.
Meta Tag Generator
Generate SEO meta tags for any page.
Open Graph Preview
Preview your social share cards.
Robots.txt Generator
Create a robots.txt file visually.
UTM Link Builder
Tag campaign URLs for analytics.
Keyword Density Checker
Analyze word frequency in your content.
Google SERP Preview
Preview your Google search snippet.
Text tools
Count, transform and tidy up text.
Word Counter
Count words, characters and reading time.
Case Converter
UPPERCASE, lowercase, Title Case and more.
Lorem Ipsum Generator
Generate placeholder text fast.
JSON Formatter
Format, validate and minify JSON.
Online Notepad
A clean notepad that auto-saves.
Remove Line Breaks
Strip or clean line breaks from text.
Remove Duplicate Lines
Delete repeated lines instantly.
Sort Text Lines
Alphabetize and sort lists.
Find and Replace Text
Bulk find & replace, with regex.
Text Reverser
Reverse characters, words or lines.
Repeat Text Generator
Repeat text any number of times.
Fancy Text Generator
Bold, italic & stylish Unicode fonts.
Morse Code Translator
Translate text to Morse and back.
Slug Generator
Turn titles into clean URL slugs.
Caesar Cipher (ROT13)
Encode and decode shifted text.
Bionic Reading Converter
Bold word-starts to read faster.
Developer tools
Everyday utilities for building things.
Base64 Encode / Decode
Encode and decode Base64 text.
UUID Generator
Generate random UUID v4 identifiers.
Password Generator
Create strong, random passwords.
Hash Generator
SHA-256, SHA-1 and SHA-512 hashes.
QR Code Generator
Create QR codes for links and text.
SQL Formatter
Beautify and format SQL queries.
HTML Formatter
Format and indent HTML markup.
XML Formatter
Format, indent and tidy XML.
Markdown Previewer
Write Markdown, preview the HTML live.
Unix Timestamp Converter
Convert epoch timestamps to dates.
Cron Expression Generator
Build and explain cron schedules.
Color Palette Generator
Build palettes from any base color.
Barcode Generator
Create CODE128, EAN and UPC barcodes.
Favicon Generator
Generate favicons, ICO and a web manifest.
JWT Decoder
Decode and inspect a JWT instantly.
Regex Tester
Build and test regular expressions live.
URL Encoder / Decoder
Percent-encode and decode URLs.
HTML Entity Encoder / Decoder
Encode and decode HTML entities.
JSON to CSV Converter
Turn a JSON array into CSV.
CSV to JSON Converter
Convert CSV into JSON objects.
Excel Viewer
Open & view XLSX files online.
Excel to CSV Converter
Convert XLSX to CSV.
Excel to JSON Converter
Convert XLSX to JSON.
CSV to Excel Converter
Turn CSV into an XLSX file.
Excel to PDF Converter
Convert spreadsheets to PDF.
Number Base Converter
Binary, octal, decimal and hex.
Color Converter
HEX, RGB and HSL — instantly.
Text Diff Checker
Compare two texts line by line.
CSS Formatter & Minifier
Beautify or minify CSS.
Online Stopwatch
Start, stop and lap — in your browser.
Countdown Timer
Set a timer with an alarm.
Pomodoro Timer
25-minute focus, 5-minute breaks.
Random Number Generator
Random numbers in any range.
Random Picker
Pick a random name or shuffle a list.
Dice Roller
Roll virtual dice (d4–d100).
Wheel Spinner
Spin a wheel to pick a random winner.
Invoice Generator
Create and download a professional invoice.
Password Strength Checker
Test how strong a password is.
Roman Numeral Converter
Numbers to Roman numerals and back.
Binary Code Translator
Text to binary and binary to text.
HTML, CSS & JS Compiler
Online HTML, CSS & JS compiler with live preview.
Python Compiler
Online Python compiler — run Python in your browser.
JavaScript Compiler
Online JavaScript compiler & playground — run JS instantly.
TypeScript Compiler
Online TypeScript compiler — compile & run TS.
SQL Compiler (SQLite)
Online SQL compiler — run SQLite queries in your browser.
What Is My IP
Instantly see your public IP address.
How RunFreeTools works
RunFreeTools is a free online toolkit of 189+ browser-based utilities — image, PDF, video, audio, text, developer, SEO and AI tools — all in one place. Most of them do their work entirely on your device: instead of uploading your file to a server, the tool uses the browser's own Canvas API and WebAssembly engines to process it locally. That makes them fast (no upload wait), private (your files never leave your computer) and free to run as often as you like.
Pick a tool by name from the search above, or browse by what you want to do — compress an image, merge PDFs, convert a video, run Python, generate a QR code or write with AI. Every tool page includes a short how-to, real use-cases and answers to common questions, so you get the result you need without signing up or installing anything.
Free online tools — frequently asked questions
Are all the tools really free?
Yes. Every tool on RunFreeTools is free to use with no watermark and, for most, no sign-up. The AI tools run on free starter credits you can top up, and every non-AI tool — image, PDF, video, audio, text and developer utilities — is unlimited and completely free.
Do I need to create an account?
No. Open any tool and start straight away — there's nothing to install and no login wall. Signing in is optional and just gives you more monthly AI credits and somewhere to save your work.
Are my files and data private?
For most tools, completely. Image, PDF, text, developer, audio and video tools run entirely in your browser using the Canvas API and WebAssembly (FFmpeg, Pyodide, sql.js), so your files never leave your device and nothing is uploaded. The few tools that need a server — AI generation and some heavy document conversions — process your input securely over HTTPS and never store it.
How do browser-based tools work without uploading?
Modern browsers can do real work on your device. We use the Canvas API for images, WebAssembly builds of FFmpeg for audio and video, Pyodide for Python and sql.js for SQL — so compressing an image, trimming a clip or running code all happen locally, with no round-trip to a server.
What kinds of tools are there?
There are 189+ tools across 9 categories: image (compress, convert, resize, remove background), PDF (merge, split, compress, convert), video and audio (convert, trim, compress), text and writing, developer utilities (JSON, Base64, hashes, formatters, online compilers), SEO helpers, everyday calculators and AI generators.
Do the tools work on a phone?
Yes. Everything runs in any modern browser on phones, tablets, Chromebooks and desktops — no app to download. Heavier jobs like 4K video are limited only by your device's memory.
Is there a file-size or usage limit?
There's no account-based limit. In-browser tools are bounded only by your device's available memory, and you can use them as many times as you like. AI tools use a small number of credits per generation.
Do I have to install anything?
No installs, no browser extensions, no software. RunFreeTools is a website — open a tool and use it instantly.