Developer Tools

JSON Formatter Paste messy or minified JSON and get clean, indented output instantly. Errors are… JSON Validator Find out whether your JSON is valid and, if it is not, exactly where and why.… JSON to CSV Turn a JSON array into a spreadsheet-ready CSV. Nested objects become columns such… CSV to JSON Paste CSV or open a file and get clean JSON. The delimiter is detected… Base64 Encoder Convert text or a file into Base64. Unicode is handled correctly, and you can… Base64 Decoder Paste a Base64 string to see what it contains. Text is shown immediately; images… URL Encoder Make any text safe to put in a URL. Pick the encoding mode that fits where the… URL Decoder Turn %20 and %C3%A9 back into readable text. Paste a full URL and you also get its… Regex Tester Write a regular expression, paste some text and see every match highlighted as you… JWT Decoder Paste a JSON Web Token to read what is inside it. Claims such as expiry are… HTML Formatter Paste minified or badly indented HTML and get consistently nested, readable… CSS Formatter Expand minified CSS into readable rules, one declaration per line, with nested… JavaScript Formatter Turn a wall of minified JavaScript into properly indented code you can read and… HTML Minifier Strip the bytes browsers do not need from your HTML. Comments and redundant… CSS Minifier Shrink a stylesheet for production. Beyond stripping whitespace, values are… JavaScript Minifier Compress JavaScript for production using the same engine modern build tools rely… Markdown to HTML Write or paste Markdown and watch it turn into HTML. Switch between a rendered… XML Formatter Indent XML so its structure is easy to follow, and find out immediately if it is… SQL Formatter Turn a long, tangled query into clearly structured SQL, with each clause on its… SQL Minifier Collapse a formatted query into a compact single line. Comments and redundant… Timestamp Converter Translate between epoch time and readable dates in both directions. The unit is… Cron Expression Generator Create a cron schedule without memorising the syntax, or paste an existing…