cronwatchdev/cronwatch

Cron and scheduled-job monitoring that lives inside your app. Wrap a job once; CronWatch records every run in a database you already have and tells you when a run is missed, fails, gets stuck, runs slow, goes over budget, or quietly does nothing. No server to run, no account to make. MIT.
**Site and docs:** cronwatch.dev
Packages
| Package | What |
|---|---|
| @cronwatch/sdk | the library for Node, Cloudflare Workers, Deno, and Bun: jobs, runs, checks, stores (memory, SQLite, Postgres, D1), pg_cron jobs read from Postgres, alerts (Slack, Discord, webhook, email, SMS, error trackers), dashboard and API, adapters for Node servers, optional Claude triage |
| cronwatch gem | the Ruby port for Ruby and Rails apps: ActiveRecord store, ActiveJob and Sidekiq integration, schedules read from Solid Queue or sidekiq-cron, pg_cron jobs, the same alert channels, a check job, the dashboard as a Rack app. Same rules, alerts, and stored rows as the SDK |
| cronwatch-sdk for Python | the Python port for Python apps: the memory, SQLite, and Postgres stores, the same alert channels and Claude triage, pg_cron jobs, the dashboard as a WSGI and ASGI app, Django, Celery and beat, APScheduler, async jobs, and handler() for platform crons and AWS Lambda |
| cronwatch/cronwatch for PHP | the PHP port for PHP apps: the memory, SQLite, MySQL (and MariaDB), and Postgres stores, sharing tables with the SDK byte for byte, the same alert channels and Claude triage, pg_cron jobs, vendor/bin/cronwatch check, the dashboard (a bare script or PSR-15), handler() for platform crons, Laravel and Symfony integrations, a WordPress plugin, a Drupal module (drupal/cronwatch), and a Craft CMS plugin (cronwatch/craft) (its DESIGN.md) |
| cronwatch.dev/go | the Go port for Go apps: jobs, runs, and checks with context throughout and safe across goroutines, the memory store and a database/sql store for SQLite, Postgres, MySQL, and MariaDB over the app's own driver, sharing tables with the SDK byte for byte, the same alert channels and Claude triage, pg_cron jobs, the dashboard and job.Handler as http.Handlers, an AWS Lambda adapter, and modules of their own for robfig/cron, gocron, River, and Asynq (its DESIGN.md) |
| cronwatch crate | the Rust port for Rust services, on tokio: jobs, runs, and checks, safe across tasks, the memory store and cronwatch-sqlx for SQLite, Postgres, MySQL, and MariaDB over the app's own sqlx pool, sharing tables with the SDK byte for byte, the same alert channels and Claude triage, pg_cron jobs, the dashboard and handler() framework-free with tower and axum adapters (and so AWS Lambda through lambda_http), a blocking client, and crates of their own for tokio-cron-scheduler and apalis (its DESIGN.md) |
| cronwatch on Hex | the Elixir port for Elixir and Erlang services: an instance in the app's supervision tree, jobs run in the calling process and recorded when it dies, the memory store and an Ecto store for SQLite, Postgres, MySQL, and MariaDB over the app's own repo, sharing tables with the SDK byte for byte, the same alert channels and Claude triage over OTP's own sockets, pg_cron jobs, the dashboard and a job's handler as Plugs for a Phoenix router, telemetry events, a release's crontab check, and integrations for Oban and Quantum (its DESIGN.md) |
| dev.cronwatch:cronwatch for Java | the Java port for services on the JVM: jobs run in the calling thread and safe across platform and virtual threads, the current run carried across threads, a shutdown hook that records runs a stopping JVM leaves open, the memory store and a JDBC store for SQLite, Postgres, MySQL, and MariaDB over the app's own DataSource, sharing tables with the SDK byte for byte, the same alert channels and Claude triage over the JDK's own HTTP client, pg_cron jobs, the dashboard and a job's handler framework-free with adapters for the JDK's server, servlet containers (cronwatch-servlet), and Spring MVC and WebFlux, CronwatchCli for a crontab's check, a Spring Boot starter that watches every @Scheduled method (ShedLock included), and modules of their own for Quartz and JobRunr (its DESIGN.md) |