Dev Tools
Free Developer Tools
Fast, free, no sign-up. A growing collection of everyday developer utilities — some powered by AI — that run entirely in your browser.
Regex Tester & AI Explainer AI
Test patterns live, then get a plain-English explanation from AI.
Cron Expression Explainer
Decode any cron schedule and preview the next run times.
JSON to TypeScript
Turn any JSON payload into clean TypeScript interfaces.
More tools are on the way. Have a request? Let me know.