JSON formatter
Format, validate, and minify JSON.
Frontend-only utilities — no server, no data leaves your tab.
Format, validate, and minify JSON.
Describe a cron schedule in plain language.
Unix seconds or ms ↔ local date/time.
Test patterns and list matches.
Zero-install text encoding (UTF-8).
Build a resume in the browser — preview and print to PDF.
Calibrate distance on a clip and estimate object speed (km/h).
Paste or upload and preview as a table.
Webcam → real-time ASCII art (uses camera; data stays in your browser).