Developer Tools

Formatters, validators and generators for engineers

Pretty-print, minify and validate JSON.

Convert text to and from Base64.

Percent-encode or decode a URL or query string.

Generate MD5, SHA-1, SHA-256 and SHA-512 hashes.

Generate random UUID v4 identifiers.

Inspect a JSON Web Token's header and payload.

Test a regular expression against sample text live.

Compare two blocks of text and highlight differences.

Write Markdown and see the rendered output live.

Convert between Unix timestamps and human-readable dates.

Convert colors between HEX, RGB and HSL.