🛠️ Developer Tools
JSON, Base64, hashes, UUIDs & dev utilities
JSON Formatter
Format, validate and minify JSON with precise error location.
Base64 Encoder / Decoder
Encode and decode Base64 strings with full UTF-8 support.
Hash Generator
Generate SHA-1, SHA-256, SHA-384 and SHA-512 hashes in your browser.
UUID Generator
Generate random v4 UUIDs — one or in bulk, with one-click copy.
Regex Tester
Test regular expressions live with match highlighting and capture groups.
Unix Timestamp Converter
Convert Unix timestamps to dates and dates to timestamps.
Diff Checker
Compare two texts line by line and highlight every addition and deletion.
Markdown Editor
Write Markdown on the left, see it rendered live on the right.
JWT Decoder
Decode any JSON Web Token to inspect its header, payload and expiry.
URL Encoder / Decoder
Percent-encode or decode URLs and query-string values instantly.
JSON to CSV Converter
Convert JSON arrays to CSV and CSV back to JSON — both directions.
Color Converter
Convert between HEX, RGB, HSL and HSV with live preview and contrast ratios.