Complete directory
All free online tools
Find the right tool for development, writing, design, calculations or conversions. Everything runs privately in your browser.
Choose a category or browse every tool below
SEO Tools
Free online seo utilities with instant results.
- 16Keyword Density CheckerCheck keyword and phrase frequency in any text, instantly and privately.
- 17Meta Tag GeneratorBuild title, description, Open Graph and Twitter Card tags with a live Google preview.
- 18Robots.txt GeneratorCreate a valid robots.txt with crawl rules, bot blocks and a sitemap line.
- 36Text to Slug ConverterTurn a list of titles into clean, SEO-friendly URL slugs.
Domain Tools
Free online domain utilities with instant results.
Developer Tools
Free online developer utilities with instant results.
- 02Base64 Encode / DecodeEncode plain text into Base64, or decode a Base64 string back into readable text — instantly, with no upload or size limit.
- 05Hash GeneratorGenerate SHA-1, SHA-256, SHA-384 and SHA-512 hashes of any text instantly as you type.
- 06JSON FormatterPaste any JSON to instantly validate it, pretty-print it with proper indentation, or minify it down to a single line.
- 08CSS & JS MinifierPaste your CSS or JavaScript to strip comments and unnecessary whitespace, shrinking file size for faster page loads.
- 13URL Encode / DecodeEncode text for safe use in a URL query string, or decode an already-encoded URL back into readable text.
- 14UUID GeneratorGenerate one or many random version-4 UUIDs for use as unique keys, tokens, or database IDs.
- 29Code PlaygroundWrite HTML, CSS and JS side by side and see the result live.
- 30Favicon to Base64Turn an icon into a data URI you can paste straight into HTML or CSS.
- 32Timezone ConverterCompare one moment across as many cities as you need.
- 33IP Address CheckerValidate IPv4 and IPv6 addresses and see what type each one is.
- 35Nano ID GeneratorGenerate short, URL-safe random IDs as an alternative to UUIDs.
- 51Passphrase GeneratorCreate strong passwords made of real words you can remember.
Text Tools
Free online text utilities with instant results.
- 07Lorem Ipsum GeneratorGenerate placeholder text for design mockups, wireframes, and layout testing — choose how many paragraphs you need.
- 15Word CounterCount words, characters, sentences, and get an estimated reading time as you type or paste text.
- 22Text to Speech ReaderTurn any text into natural spoken audio right in your browser.
- 23Speech to TextDictate with your microphone and watch the words appear as text.
- 24Palindrome CheckerCheck whether a word, phrase or number reads the same backwards.
- 25Duplicate Line RemoverClean a list by removing repeated lines, blanks and stray spaces.
- 26Text SorterSort any list alphabetically, by length, numerically or at random.
- 27Find & ReplaceSwap words or patterns across a whole document in one pass.
- 28Character Frequency CounterSee how often each letter and symbol appears in your text.
Design Tools
Free online design utilities with instant results.
- 03Color ConverterEnter a HEX color code and instantly see its RGB and HSL equivalents, with a live color preview.
- 04Gradient GeneratorPick two colors and an angle to build a linear or radial gradient, preview it live, and copy the finished CSS.
- 10QR Code GeneratorTurn any text, link, or Wi-Fi credential into a scannable QR code you can download instantly as a PNG.
- 34Placeholder Image GeneratorCreate sized dummy images with your own colours in one click.
- 37Contrast CheckerTest text and background colours against WCAG AA and AAA.
- 38Border Radius GeneratorShape corners visually and copy the exact CSS.
- 39Clip Path GeneratorCut elements into polygons, circles and custom shapes with CSS.
- 40Favicon PreviewSee how your icon looks in real browser tabs and bookmarks.
- 41Colour Blindness SimulatorSee your design the way colour-blind users see it.
Calculators Tools
Free online calculators utilities with instant results.
- 01Age CalculatorEnter your date of birth to instantly calculate your exact age in years, months, and days — plus the total number of days you've been alive. Works entirely in your browser, so nothing you enter is ever sent to a server.
- 09Percentage CalculatorThree of the most common percentage calculations in one place: what a percentage of a number is, what percent one number is of another, and percentage change.
- 11Tip CalculatorWork out the tip amount, total bill, and how much each person owes — instantly, with quick-tap tip percentage presets.
- 42Split Bill CalculatorDivide a bill fairly when everyone ordered something different.
- 43Date Difference CalculatorCount the days, weeks, months and years between two dates.
- 44Work Days CalculatorCount working days between dates, skipping weekends and holidays.
- 45GPA CalculatorWork out semester and cumulative GPA on the 4.0 scale.
- 46Compound Interest CalculatorProject savings growth with regular deposits and compounding.
- 47Fuel Cost CalculatorEstimate what a trip costs in fuel and split it between passengers.
- 48Pregnancy Due Date CalculatorEstimate your due date and see how many weeks along you are.
- 49Coin Flip & Dice RollerFlip coins and roll any dice with genuinely random results.
- 50Random Team GeneratorSplit a list of names into fair, random teams instantly.
Converters Tools
Free online converters utilities with instant results.
Media Tools
Free online media utilities with instant results.
- 52YouTube Thumbnail DownloaderPaste a video link and grab its cover image in every available size.
- 53YouTube Tag & Title GeneratorTurn one keyword into tags, title ideas, hashtags and a description skeleton.
- 54Image CompressorShrink JPG, PNG and WebP files without sending them anywhere.
- 55Image ConverterSwitch an image between PNG, JPG and WebP in one click.
- 56Image ResizerResize to exact pixel dimensions or to a ready social media preset.
- 57Video Frame GrabberScrub to the exact moment and save that frame as a PNG or JPG.
- 58Video to GIF ConverterTurn a few seconds of video into a shareable animated GIF.
- 59Audio Trimmer & WAV ConverterCut a section out of an audio file and export it as a clean WAV.