236 free tools ยท no signupEvery tool you need,
Every tool you need,
in one place.
Formatters, converters, calculators, SEO & social media helpers and productivity apps - free, fast, and private in your browser.
What is FreeTool?
FreeTool is a collection of 236 free online tools that run in your web browser โ formatters, converters, calculators, image and PDF utilities, SEO helpers and productivity apps. There is no signup, no install and no usage limit, and most tools process your files on your own device rather than uploading them to a server.
- Price
- Free โ no trial, no paid tier, no watermark
- Sign-up
- Not required for almost every tool
- Where it runs
- In your browser โ most tools upload nothing
- Best for
- Developers, students, creators and freelancers
- Works on
- Chrome, Safari, Firefox and Edge โ desktop and mobile
Last updated
๐ ๏ธDeveloper Tools
33 toolsJSON FormatterBeautify, minify & validate JSON.Base64 Encode / DecodeConvert text to and from Base64.URL Encoder / DecoderPercent-encode or decode URLs.JWT DecoderDecode a token's header & payload.UUID GeneratorGenerate v4 UUIDs in bulk.Hash GeneratorSHA-1, SHA-256, SHA-384, SHA-512.Password GeneratorStrong random passwords.Regex TesterTest patterns with live matches.Markdown PreviewerWrite Markdown, see live HTML.Color ConverterHEX โ RGB โ HSL with preview.CSS Gradient GeneratorBuild & copy CSS gradients.Box Shadow GeneratorVisual CSS box-shadow builder.Border Radius GeneratorRound corners visually.QR Code GeneratorText or URL to QR code.Lorem Ipsum GeneratorPlaceholder text by paragraphs.XML FormatterPretty-print & indent XML.HTML FormatterIndent and tidy HTML.YAML FormatterClean up and normalize YAML.SQL FormatterBeautify messy SQL.CSS MinifierShrink CSS for production.JavaScript MinifierCompress JS files.CSV โ JSON ConverterConvert between CSV and JSON.Random Number GeneratorRandom numbers in any range.Dice Roller & Coin FlipRoll dice or flip a coin.Spin the WheelRandom name / option picker.Color Contrast CheckerWCAG AA/AAA contrast ratio.URL ShortenerShorten long links with click stats.Barcode GeneratorCreate CODE128, EAN, UPC & more barcodes.JSON to TypeScriptGenerate TypeScript types from any JSON.Cron Expression ExplainerRead any cron schedule in plain English.HTML โ Markdown ConverterConvert HTML to Markdown and back.Password Strength CheckerTest how strong & crackable a password is.Link in Bio Page BuilderBuild & publish a free one-page link site.
๐คAI Tools
7 toolsAI AssistantTell it what you need โ it finds the right tool.AI Cover Letter GeneratorGenerate a tailored cover letter in seconds.AI Resume Bullet Point GeneratorTurn plain duties into polished resume bullets.AI Email WriterWrite professional emails for any situation.Business Name GeneratorBrandable name ideas for your startup.Slogan & Tagline GeneratorCatchy slogans & taglines for your brand.AI Image Prompt GeneratorTurn an idea into a detailed image-generator prompt.
๐ฎGames
4 tools๐ผ๏ธImage Tools
11 toolsImage ResizerResize to exact dimensions.Image CropperCrop images with a drag box.Image CompressorReduce image file size.Image to Base64Convert an image to a data URI.Image to Text (OCR)Extract text from images & photos, free.Favicon GeneratorMake favicons (16โ512px) from an image or letter.Meme GeneratorAdd top & bottom captions to any image.Image Color PaletteExtract a color palette from any image.Text to HandwritingTurn typed text into realistic handwriting.Placeholder Image GeneratorGenerate custom placeholder images.Poster & Social Graphic MakerDesign posts, thumbnails & posters. No watermark.
๐PDF & File Tools
9 toolsMerge PDFCombine multiple PDFs into one.Split PDFExtract pages or ranges from a PDF.Compress PDFOptimize & shrink PDF size.Images to PDFTurn JPG/PNG images into a PDF.Sign PDFDraw & add your signature to a PDF.Image ConverterPNG โ JPG โ WebP.Social Image ResizerResize for Instagram, YouTube & more.Screen RecorderRecord your screen in the browser.Certificate GeneratorPrint-ready certificates, one or a whole class.
๐Text Tools
13 toolsWord & Character CounterWords, characters, read time.Case ConvertercamelCase, snake_case, TitleโฆText Diff CheckerCompare two texts line by line.Remove Duplicate LinesDelete repeated lines.Sort LinesAlphabetically sort lines.Reverse TextReverse characters, words or lines.Find & ReplaceReplace text in bulk.Text RepeaterRepeat text many times.Text to SpeechRead text aloud in your browser.Speech to TextDictate & transcribe your voice, free.Emoji PickerSearch & copy any emoji in one click.AI Prompt OptimizerTurn a rough idea into a great AI prompt.Paraphrasing ToolRewrite text in 5 styles. No word limit.
๐งฎCalculators
15 toolsPercentage CalculatorPercent of, change and more.BMI CalculatorBody mass index, metric or imperial.Age CalculatorExact age from date of birth.Loan / EMI CalculatorMonthly payment & total interest.Tip CalculatorSplit the bill and tip.Discount CalculatorSale price and savings.Mortgage CalculatorMonthly payment & interest.Compound Interest CalculatorProject investment growth.Calorie / TDEE CalculatorDaily calorie & BMR needs.GPA CalculatorWeighted GPA from grades.Scientific CalculatorTrig, logs, powers & more.SIP / Investment CalculatorProject mutual-fund SIP growth.Income Tax CalculatorEstimate tax by slab/regime.GST CalculatorAdd or remove GST from a price.Date CalculatorDays between dates & add days.
๐Converters
6 tools๐Unit Conversions
100 toolsCentimeters to InchesConvert centimeters to inches instantly, with a reference table.Inches to CentimetersConvert inches to centimeters instantly, with a reference table.Millimeters to InchesConvert millimeters to inches instantly, with a reference table.Inches to MillimetersConvert inches to millimeters instantly, with a reference table.Meters to FeetConvert meters to feet instantly, with a reference table.Feet to MetersConvert feet to meters instantly, with a reference table.Kilometers to MilesConvert kilometers to miles instantly, with a reference table.Miles to KilometersConvert miles to kilometers instantly, with a reference table.Meters to YardsConvert meters to yards instantly, with a reference table.Yards to MetersConvert yards to meters instantly, with a reference table.Feet to InchesConvert feet to inches instantly, with a reference table.Inches to FeetConvert inches to feet instantly, with a reference table.Centimeters to FeetConvert centimeters to feet instantly, with a reference table.Kilometers to MetersConvert kilometers to meters instantly, with a reference table.Kilograms to PoundsConvert kilograms to pounds instantly, with a reference table.Pounds to KilogramsConvert pounds to kilograms instantly, with a reference table.Grams to OuncesConvert grams to ounces instantly, with a reference table.Ounces to GramsConvert ounces to grams instantly, with a reference table.Kilograms to GramsConvert kilograms to grams instantly, with a reference table.Pounds to OuncesConvert pounds to ounces instantly, with a reference table.Stones to KilogramsConvert stones to kilograms instantly, with a reference table.Tonnes to KilogramsConvert tonnes to kilograms instantly, with a reference table.Celsius to FahrenheitConvert celsius to fahrenheit instantly, with a reference table.Fahrenheit to CelsiusConvert fahrenheit to celsius instantly, with a reference table.Celsius to KelvinConvert celsius to kelvin instantly, with a reference table.Kelvin to CelsiusConvert kelvin to celsius instantly, with a reference table.Megabytes to GigabytesConvert megabytes to gigabytes instantly, with a reference table.Gigabytes to MegabytesConvert gigabytes to megabytes instantly, with a reference table.Kilobytes to MegabytesConvert kilobytes to megabytes instantly, with a reference table.Gigabytes to TerabytesConvert gigabytes to terabytes instantly, with a reference table.Terabytes to GigabytesConvert terabytes to gigabytes instantly, with a reference table.Megabytes to KilobytesConvert megabytes to kilobytes instantly, with a reference table.km/h to mphConvert km/h to mph instantly, with a reference table.mph to km/hConvert mph to km/h instantly, with a reference table.m/s to km/hConvert m/s to km/h instantly, with a reference table.Knots to km/hConvert knots to km/h instantly, with a reference table.Liters to GallonsConvert liters to gallons instantly, with a reference table.Gallons to LitersConvert gallons to liters instantly, with a reference table.Milliliters to LitersConvert milliliters to liters instantly, with a reference table.Liters to MillilitersConvert liters to milliliters instantly, with a reference table.Cups to MillilitersConvert cups to milliliters instantly, with a reference table.Milliliters to CupsConvert milliliters to cups instantly, with a reference table.Square Meters to Square FeetConvert square meters to square feet instantly, with a reference table.Square Feet to Square MetersConvert square feet to square meters instantly, with a reference table.Acres to Square MetersConvert acres to square meters instantly, with a reference table.Hectares to AcresConvert hectares to acres instantly, with a reference table.Hours to MinutesConvert hours to minutes instantly, with a reference table.Minutes to SecondsConvert minutes to seconds instantly, with a reference table.Days to HoursConvert days to hours instantly, with a reference table.Weeks to DaysConvert weeks to days instantly, with a reference table.Years to DaysConvert years to days instantly, with a reference table.Millimeters to CentimetersConvert millimeters to centimeters instantly, with a reference table.Centimeters to MillimetersConvert centimeters to millimeters instantly, with a reference table.Meters to CentimetersConvert meters to centimeters instantly, with a reference table.Feet to CentimetersConvert feet to centimeters instantly, with a reference table.Centimeters to MetersConvert centimeters to meters instantly, with a reference table.Miles to FeetConvert miles to feet instantly, with a reference table.Yards to FeetConvert yards to feet instantly, with a reference table.Inches to MetersConvert inches to meters instantly, with a reference table.Nautical Miles to KilometersConvert nautical miles to kilometers instantly, with a reference table.Grams to KilogramsConvert grams to kilograms instantly, with a reference table.Ounces to PoundsConvert ounces to pounds instantly, with a reference table.Milligrams to GramsConvert milligrams to grams instantly, with a reference table.Kilograms to StonesConvert kilograms to stones instantly, with a reference table.Pounds to GramsConvert pounds to grams instantly, with a reference table.Fahrenheit to KelvinConvert fahrenheit to kelvin instantly, with a reference table.Kelvin to FahrenheitConvert kelvin to fahrenheit instantly, with a reference table.Kilobytes to GigabytesConvert kilobytes to gigabytes instantly, with a reference table.Terabytes to MegabytesConvert terabytes to megabytes instantly, with a reference table.Bytes to KilobytesConvert bytes to kilobytes instantly, with a reference table.mph to m/sConvert mph to m/s instantly, with a reference table.km/h to m/sConvert km/h to m/s instantly, with a reference table.Knots to mphConvert knots to mph instantly, with a reference table.Gallons to MillilitersConvert gallons to milliliters instantly, with a reference table.Tablespoons to TeaspoonsConvert tablespoons to teaspoons instantly, with a reference table.Cups to TablespoonsConvert cups to tablespoons instantly, with a reference table.Fluid Ounces to MillilitersConvert fluid ounces to milliliters instantly, with a reference table.Pints to LitersConvert pints to liters instantly, with a reference table.Quarts to LitersConvert quarts to liters instantly, with a reference table.Square Kilometers to Square MilesConvert square kilometers to square miles instantly, with a reference table.Acres to HectaresConvert acres to hectares instantly, with a reference table.Square Feet to AcresConvert square feet to acres instantly, with a reference table.Minutes to HoursConvert minutes to hours instantly, with a reference table.Seconds to MinutesConvert seconds to minutes instantly, with a reference table.Days to WeeksConvert days to weeks instantly, with a reference table.Hours to DaysConvert hours to days instantly, with a reference table.PSI to BarConvert psi to bar instantly, with a reference table.Bar to PSIConvert bar to psi instantly, with a reference table.Kilopascals to PSIConvert kilopascals to psi instantly, with a reference table.Atmospheres to PSIConvert atmospheres to psi instantly, with a reference table.Kilojoules to CaloriesConvert kilojoules to calories instantly, with a reference table.Kilocalories to KilojoulesConvert kilocalories to kilojoules instantly, with a reference table.Kilowatt-hours to JoulesConvert kilowatt-hours to joules instantly, with a reference table.Horsepower to KilowattsConvert horsepower to kilowatts instantly, with a reference table.Kilowatts to HorsepowerConvert kilowatts to horsepower instantly, with a reference table.Watts to HorsepowerConvert watts to horsepower instantly, with a reference table.Degrees to RadiansConvert degrees to radians instantly, with a reference table.Radians to DegreesConvert radians to degrees instantly, with a reference table.Gigahertz to MegahertzConvert gigahertz to megahertz instantly, with a reference table.Megahertz to HertzConvert megahertz to hertz instantly, with a reference table.
๐SEO Tools
9 toolsMeta Tag GeneratorSEO meta tags.Open Graph GeneratorRich social previews.Twitter Card GeneratorPerfect Twitter previews.Schema GeneratorJSON-LD structured data.Heading CheckerAudit your H1โH6 structure.Sitemap GeneratorGenerate an XML sitemap.Robots.txt GeneratorControl crawler access.URL Slug GeneratorSEO-friendly slugs.Keyword Density CheckerTop keywords & density in your text.
โ Productivity
15 toolsNotesQuick, saved notes.Todo ListSimple, focused tasks.Kanban BoardVisualize your workflow.Pomodoro TimerFocus in 25-minute sprints.Habit TrackerBuild a 7-day streak.Goal TrackerTrack progress to goals.Expense TrackerSee where money goes.Bookmark ManagerSave links in one place.StopwatchStopwatch with lap times.Countdown TimerCount down to any date.Typing Speed TestMeasure your WPM & accuracy.Survey & Form MakerBuild a form, share a link, collect responses.Meeting SchedulerFind a time everyone can make โ no accounts.Presentation MakerType an outline, present it, export a PDF deck.Flashcard & Quiz MakerBuild decks, study them, test yourself.
๐ฏCareer
4 tools๐ผFreelancing
2 toolsFrom the blog
All posts
Career
Building a Developer Portfolio That Actually Gets You Hired
Most developer portfolios are a template with three unfinished projects. Here's how to build one that actually gets a recruiter to keep reading.
Tutorials
Cybersecurity Basics Every Developer Should Know
You don't need to be a security specialist to avoid the mistakes that cause most real-world breaches. Here are the basics that actually matter for everyday application development.
Tutorials
Don't Start Learning Until You Have a Clear Plan
A beginner-friendly roadmap for learning JavaScript in 2026, built around free resources and small real projects instead of endless tutorial-watching.
Frequently asked questions
Is FreeTool actually free?
Yes โ every tool is free with no trial, no paid tier, no watermark and no usage cap. The site is funded by advertising rather than subscriptions, which is why you will see ad slots on tool pages.
Do I need to create an account?
No, for almost everything. A small number of tools that publish something you own โ a short link, a shared form, a link-in-bio page โ need an account so you can manage and delete what you created. Every other tool works with no signup at all.
Where does my data go when I use a tool?
For the large majority of tools, nowhere. Formatting, conversion, image editing and PDF work all run inside your browser using standard web APIs, so files are read into memory on your own device and never uploaded. The exceptions are tools that genuinely need a server โ the AI writers, live currency rates and the downloaders โ and each says so on its own page.
Who is FreeTool for?
Developers formatting JSON and debugging tokens, students working through calculations and citations, creators resizing images and writing captions, freelancers invoicing and tracking time, and anyone who needs a quick conversion without installing software.
Can I use the results commercially?
Generally yes โ anything you create with these tools is yours to use in personal or commercial work. Where third-party rights are involved, such as a downloaded video or a YouTube thumbnail, the original owner's copyright still applies and respecting it is your responsibility.
Do the tools work on a phone?
Yes. Everything runs in any modern browser on a phone, tablet or computer, with no app to install. Many tools also keep working offline once the page has loaded, because the processing happens on your device rather than on a server.
How the in-browser tools work
The claim that your files are not uploaded is a property of how the tools are built rather than a promise. Image resizing and conversion use the Canvas API, password and UUID generation use the Web Crypto API for cryptographically secure randomness, and notes and task lists persist through local storage on your own device. All three are standard browser features, so you can confirm the behaviour yourself: open your browserโs network tab while using one of these tools and no upload request appears.
Tools that genuinely require a server say so on their own page. Those are the AI writers, live currency rates and the media downloaders โ everything else works with the network disconnected once the page has loaded.
๐ฑSocial Media
8 tools