Launched this week

CronWatch

Launched this week

Cron fails silently. This doesn’t.

23 followers

Cron fails silently. This doesn’t.

23 followers

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CronWatch records every run of your scheduled jobs in your own database, and speaks up when one is missed, fails, gets stuck, runs slow or costs too much. It is a library, not a service. No server to run, no account to make, and run history that stays in your database. An alert carries the error and the last lines of output to the channels you pick, and to Anthropic only if you turn on triage. MIT licensed.

Free

Launch tags:Open Source•Developer Tools•GitHub

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Hey Product Hunt 👋 CronWatch is a free, open source library for monitoring cron and scheduled jobs. It lives inside your app. Every run gets recorded in the database you already have (SQLite, Postgres, MySQL, or D1), and alerts go straight from your app to Slack, Discord, email, SMS, a webhook, or your error tracker. There's no server to run and no account to make. It tells you when a job: - Never ran - Failed (with the error and the last lines of output) - Got stuck - Ran slow - Went over budget - Wrote nothing at all It works with TypeScript, Ruby, Python, PHP, Go, Rust, Elixir, Java and .NET, and plugs into the schedulers you're probably already using (there's also Wordpress, Drupal, and Craft CMS plugins). Sidekiq, Solid Queue, Celery, Laravel, Oban, Hangfire, Spring and a bunch more. In a lot of cases it reads the schedule straight from your scheduler config. A few extras I'm happy with: - A dashboard that mounts in your app at /cronwatch - An MCP server so Claude Code or Cursor can tell you what broke - A setup prompt you can paste into your coding agent to wire up every job - Optional AI triage that adds a short diagnosis to each alert And it's also free and open source, MIT licensed. Code's on GitHub: https://github.com/phillips-jon/... I'd love feedback, issues and PRs. If your scheduler isn't supported yet, tell me which one. Thank you :)

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2d ago