By Developers for Developers
Engineering utilities,
reimagined.
Your data never leaves the browser. A privacy-first collection of essential tools for the modern developer workflow.
JSON Formatter
Format, beautify and validate JSON instantly. Real-time syntax validation with detailed error messages.
Open Editor →
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JWT Decoder
Instant decode and claim verification.
Base64
Fast encode and decode strings.
URL Encoder
RFC 3986 compliant encoding.
Hash Generator
MD5, SHA-1, SHA-256, SHA-512 & more.
Cron Builder
Human-readable cron expressions for any schedule.
*/15 * * * *
Diff Checker
Compare two texts and highlight differences.
UUID Generator
Bulk generate secure UUIDs.
JSON Repair
Fix broken and malformed JSON instantly.
Password Generator
Cryptographically secure random passwords.
Password Checker
Check strength and estimated crack time.