Free online tools

Base64 Encoder and Decoder Converts text into Base64, or turns Base64 back into readable text. Case Converter Changes your text to UPPERCASE, lowercase, Title Case, Sentence case and several other styles. Duplicate Line Remover Removes repeated lines from a list so each entry appears only once. HTML to Text Strips the HTML tags out of a snippet of code and gives you back just the readable words. Markdown to HTML Converts Markdown formatting into HTML you can paste into a web page. Slug Generator Turns a title into a clean, lowercase web address, replacing spaces and accents with plain hyphenated text. Text Sorter Sorts a list of lines alphabetically, by length, or by number, and can reverse or shuffle it. Text to HTML Turns plain text into HTML, wrapping paragraphs and converting line breaks so it displays properly on a web page. URL Encoder and Decoder Escapes characters so text is safe to put in a web address, or turns an encoded address back into readable text. Whitespace Remover Cleans up messy spacing by removing extra spaces, tab characters and empty lines. Word Counter Counts the words, characters, sentences and paragraphs in your text, and estimates how long it takes to read.

CSV to JSON Turns a spreadsheet-style CSV table into a JSON list you can use in code. Colour Code Converter Converts a colour between HEX, RGB and HSL, and shows you a live swatch of it. Hash Generator Produces MD5, SHA-1, SHA-256 and SHA-512 fingerprints of a piece of text. JSON Formatter Tidies up JSON so it is readable, or squashes it down to the smallest possible size. JSON Validator Checks whether a piece of JSON is valid and tells you exactly where it goes wrong. JWT Decoder Opens up a JSON Web Token so you can read its header and contents. It does not check the signature. Regex Tester Tries a regular expression against sample text and highlights everything it matches. Timestamp Converter Converts a Unix timestamp into a readable date and time, and back again. XML Formatter Indents XML so the structure is easy to follow, or collapses it onto one line.

Business Name Generator Suggests company name ideas by combining a beginning and an ending in the style you pick. Password Generator Creates strong random passwords and tells you how hard each one would be to guess. Random Colour Generator Produces random colours with their HEX, RGB and HSL codes, and can keep them within a shade you choose. Random Name Generator Invents random people names, useful for test data, examples and placeholder content. Random Number Generator Picks random whole numbers within a range you choose, with or without repeats. Team Name Generator Comes up with team names for sport, work, gaming or just for fun. UUID Generator Generates universally unique identifiers, the long random codes used to label records in software. Username Generator Suggests available-looking usernames by pairing a describing word with a noun.

Image Compressor Shrinks the file size of a picture and shows you exactly how much space you saved. Image Format Converter Converts a picture between PNG, JPEG and WebP without uploading it anywhere. Image Resizer Changes the width and height of a picture. The picture is handled inside your browser and is never uploaded.

Keyword Density Checker Counts which words appear most often in your text and what share of the total each one takes up. Robots.txt Generator Builds a robots.txt file that tells search engines and AI crawlers which parts of your site they may read. Social Share Preview Shows how your page title, description and image will look when someone shares the link, and generates the tags for it.