Cron Expression Parser
Decode any cron expression into plain English ("At 9 AM, Monday through Friday") and see the next 5 run times in your local timezone. 11 common presets included.
* for any, */5 for every-5, 1-5 for range, 1,3,5 for list.What powers the Cron Expression Parser
Plain-English description (powered by cronstrue)
Next 5 run times in your local time + UTC
11 common presets (every 5 min, every hour, daily, weekly, monthly, yearly)
Live error reporting for invalid expressions
Field-by-field syntax reference
Instant
Why the Cron Expression Parser is different
Browser-native
The Cron Expression Parser runs entirely in your browser. Input is processed locally — never uploaded, never logged, never cached anywhere outside your device.
No artificial limits
No daily quotas, no character ceilings, no "upgrade for more" walls. Every feature is the complete feature — the same on the first use as the thousandth.
Production-grade quality
Built to the same engineering bar as paid SaaS tools — accurate algorithms, audited logic, responsive design and accessibility-tested interactions.
Common use contexts
- Setting up cron jobs on Linux / macOS / containers
- Configuring scheduled tasks in CI/CD pipelines (GitHub Actions cron schedule)
- Database scheduled jobs (PostgreSQL pg_cron, MySQL events)
- Cloud schedulers (AWS EventBridge, GCP Cloud Scheduler)
Private and secure
Zero upload
All processing happens in your browser. Input is never transmitted, logged or cached.
Works offline
Once the page loads, the tool runs without an internet connection. No network calls happen during use.
No tracking
No accounts, no cookies for tool state. Only aggregate analytics count visits at the page level.