Cronhq

In plain words

Cronhq is a distributed scheduler that guarantees exactly-once job execution using Postgres locks, solving the common problem of cron jobs running multiple times or failing silently. It offers automatic retries with backoff, HMAC-signed webhooks, heartbeat monitoring, and alerts on failure and recovery. Built in Rust on Postgres and available as a self-hostable open-source version or managed SaaS, it targets developers who need reliable scheduled task execution. The free tier supports up to five jobs.

written from the facts on this page · September 2026

From the sources

Cron jobs fail in silence. Two servers run the same crontab and your billing job fires twice. A job dies and nobody notices for weeks. Cronhq is a scheduler built around one guarantee: exactly-once execution, enforced by Postgres locks — not best-effort. Around it: retries with backoff, HMAC-signed webhooks, heartbeat monitors for jobs we don't run, and alerts that fire once on failure and once on recovery. Rust on Postgres. MIT-licensed, self-hostable, same image we run. Free tier: 5 jobs.

Reliable distributed cron in 60 seconds. Exactly-once execution across workers, automatic retries, alerts on failure and recovery. Built in Rust on Postgres.

Point Cronhq at a webhook. We fire it on schedule, retry on failure, and page you when something breaks — and again the moment it recovers. Every request carries an X-Cronhq-Signature header — HMAC-SHA256 over timestamp.body — plus an X-Cronhq-Timestamp. Each job gets its own secret. Rotate it anytime, no downtime. Ping a URL on every run. Miss the window — period plus grace — and we flip the monitor DOWN and page you once. It's cron's inverse: proof of absence, not presence. npx cronhq sync reconciles a cronhq.yaml in your repo — creates, updates, prunes. npx cronhq tail live-streams executions straight to your terminal. Hit ⌘K anywhere in the dashboard for the command palette. Type "every…from cronhq.xyz

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  Cronitor2017 · cronitor.io · ▲170

  Monitor cron jobs, micro-services and almost anything else.

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