cronparse

About cronparse

cronparse is a free web tool for developers and operators who need to understand a cron schedule quickly. Paste an expression and it describes the schedule in plain English, flags common pitfalls such as the day-of-month and day-of-week OR-logic gotcha and day-31 traps, and lists the next five runs in UTC. No signup is required.

For teams that schedule jobs across regions, a paid endpoint converts the next ten runs into any IANA timezone with correct daylight saving handling. It also adds platform-specific notes for GitHub Actions, Vercel, AWS EventBridge and Kubernetes, where cron behaves slightly differently. Payment is made in USDC on the Base network.

The site is built by Doormat Capital and is available through the free parser or the paid conversion calls, which are documented on the homepage.