About devkit

devkit is a collection of offline-first developer utilities built by yaro-labs.com. Every tool runs entirely in your browser -- nothing you type is sent to a server.

What devkit includes

• JSON Formatter -- format, validate, and minify JSON
• JWT Decoder -- decode header, payload, and signature
• Regex Tester -- test patterns with live match highlighting
• UUID Generator -- generate v4 UUIDs in bulk
• Base64 Codec -- encode and decode Base64 strings
• Hash Generator -- MD5, SHA-1, SHA-256, SHA-512 via Web Crypto API
• URL Encoder -- encode and decode URL components
• Text Diff -- compare two texts side by side

The yaro-labs.com family

devkit is the first of five tool-kit sub-sites under yaro-labs.com. devkit uses a dark theme; the others use light backgrounds with accent colors.

Built with

Built by Yaro Labs. Runs entirely in your browser — no server, no account.