Developer Tools
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Dev Tools
No signup, no tracking. Just fast, client-side tools that run entirely in your browser.
JSON Formatter
Format, validate, and beautify JSON data with syntax highlighting and error detection.
Base64 Encoder
Encode and decode Base64 strings with full UTF-8 support.
Regex Tester
Test regular expressions with live highlighting, match groups, and flag support.
Cron Explainer
Parse cron expressions into human-readable descriptions with next run times.
JWT Decoder
Decode JSON Web Tokens to inspect header, payload, and expiration status.
Color Converter
Convert between HEX, RGB, and HSL color formats with live preview.