Developer Tools
Formatters, encoders, generators, and dev utilities — 14 free tools
JSON Formatter
Paste any JSON — valid or broken — and get it formatted, validated, and explained.
Base64 Encoder / Decoder
Encode or decode Base64 instantly — text, URLs, and files all supported.
URL Encoder / Decoder
Encode or decode any URL or query string — percent-encoding handled perfectly.
HTML Entity Encoder
Convert special characters to HTML entities and back — safely escape any string.
Regex Tester
Write and test regular expressions with live match highlighting and detailed explanations.
Color Picker & Converter
Pick any color and get HEX, RGB, HSL, HSV, OKLCH, and CSS code — instantly.
CSS Gradient Generator
Build beautiful CSS gradients visually — linear, radial, and conic — with one-click copy.
Box Shadow Generator
Design CSS box shadows visually with sliders — layer multiple shadows and copy the CSS.
Meta Tag Previewer
Preview how your page looks in Google, Twitter, and Facebook before you publish.
JWT Decoder
Decode any JSON Web Token and inspect the header, payload, and expiry — offline.
Cron Expression Explainer
Paste any cron expression and get a plain-English explanation plus next 10 run times.
UUID / ULID Generator
Generate UUID v1, v4, or ULID — one at a time or in bulk, with one-click copy.
Hash Generator
Generate MD5, SHA-1, SHA-256, and SHA-512 hashes from any text — instantly, in browser.
Markdown Previewer
Write Markdown on the left, see the rendered HTML on the right — in real time.