Developer Tools
Small, focused utilities for everyday development work. Each runs entirely in your browser: nothing you paste is uploaded, logged, or stored on a server.
Available tools
- Base64 Encoder/Decoder — encode and decode Base64 and URL-safe Base64.
- JSON Formatter & Validator — pretty-print JSON and locate syntax errors.
- Regex Tester — test regular expressions against sample text.
- UUID Generator — generate and inspect UUIDs.
- Unix Timestamp Converter — convert between epoch seconds and dates.
- Cron Expression Explainer — read a cron schedule in plain English.