Developer Generators & Testers
Test regular expressions with live highlighting, build and explain cron schedules, generate UUIDs, and convert Unix timestamps to readable dates and back.
🔒 Runs in your browser — nothing is uploaded ✓ Free, no signup
- Regex TesterNewTest JavaScript regular expressions with live match highlighting and groups.
- Cron Expression GeneratorNewBuild cron schedules, read them in plain English and preview next runs.
- UUID GeneratorGenerate unique V4 UUIDs for database keys or testing.
- Epoch Time ConverterConvert UNIX timestamps to human-readable dates and back instantly.