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github-actions[bot] edited this page Apr 8, 2026 · 4 revisions

frequent-cron

A lightweight daemon and service manager for running shell commands at millisecond intervals. Sub-second cron for Linux, macOS, FreeBSD, and Windows.

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What is frequent-cron?

Standard Unix cron only supports minute-level scheduling. frequent-cron fills the gap by running commands at millisecond precision -- ideal for:

  • Polling queues or APIs multiple times per second
  • Health checks at sub-second intervals
  • High-frequency data collection
  • Any task that needs to run more often than once per minute

frequent-cron has been production-stable for 15+ years. Starting with v0.3.0, it also works as a service manager -- register named services, start/stop them, view logs, and let the OS supervise them natively via systemd, launchd, rc.d, or the Windows Service Control Manager.

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