Cron Expression Editor

Build or paste a cron expression and instantly see a human-readable description and the next run times.

Parsing, description, and next-run calculations all happen entirely in your browser — the expression is never sent to or stored on the server.

Only standard 5-field cron (Vixie/POSIX — the format used in crontabs on Linux) is supported. Variants with seconds (6 fields, e.g. Quartz) are outside the scope of this tool.