15 free tools
Developer Tools
Formatters, encoders, converters and generators for developers.
JSON Formatter
Format, validate and beautify JSON instantly.
JSON to CSV
Convert JSON arrays into CSV spreadsheets.
CSV to JSON
Convert CSV data into structured JSON.
Base64 Encode / Decode
Encode and decode Base64 strings.
URL Encode / Decode
Percent-encode and decode URLs.
HTML Encode / Decode
Escape and unescape HTML entities.
JWT Decoder
Decode and inspect JSON Web Tokens.
UUID Generator
Generate v4 UUIDs in bulk.
Hash Generator
Generate MD5, SHA-1, SHA-256 and more.
Regex Tester
Test regular expressions with live match highlighting.
HTML Minifier
Minify HTML to shrink page size.
CSS Minifier
Minify CSS for faster load times.
JS Minifier
Minify JavaScript to reduce bundle size.
Markdown to HTML
Convert Markdown into clean HTML.
HTML to Markdown
Convert HTML back into Markdown.