Open source scheduler projects
Every project in the registry tagged scheduler, ranked by real GitHub adoption.
A distributed task scheduling framework.（分布式任务调度平台XXL-JOB）
Run long-running AI tasks without timeouts or servers
Free open-source appointment booking for any business
Open source agency management tool for streamlined success
Automated job scheduler with fluent interface for the .NET platform.
Trigger functions or evaluate cron expressions in JavaScript or TypeScript. No dependencies. Most features. Node. Deno. Bun. Browser.
Real-Time Interrupt-driven Concurrency (RTIC) framework for ARM Cortex-M microcontrollers
Modern Job Scheduler
Minimalist and zero-dependency scheduling library for Go
Self-hosted web app that automates downloading, organizing, and scheduling YouTube channel content with support for Plex, Kodi, Emby and Jellyfin
A light-weight job scheduling system built on top of Resque
Taier is a big data development platform for submission, scheduling, operation and maintenance, and indicator information display
Queuer is a queue manager, built on top of OperationQueue and Dispatch (aka GCD).
A render management system you can deploy for visual effects and animation productions.
Atom Agent, Open-Source Governed AI Agent Platform for Self-Hosted Automation
A bleeding-edge, lock-free, wait-free, continuation-stealing tasking library built on C++20's coroutines
Create jobs on a time-based schedule on Docker Swarm
Workflow Automation Engine
Tork is a lightweight, distributed workflow engine that runs tasks as simple scripts within Docker containers.
distributed scheduled task management system
Rate limiting, caching, and request prioritization for modern workloads
High-performance serverless GPU task orchestration — the scheduling layer behind wavespeed.ai
Grab your files periodically from a remote FTP or SFTP server easily
Related tags
Frequently asked questions
How many open source scheduler projects are there?
This registry tracks 23 projects tagged scheduler, with 81,154 GitHub stars between them. The most-adopted is xxl-job at 30,643 stars.
Are these scheduler projects free to use?
Yes — 23 of the 23 carry an explicit open-source licence across 7 distinct licences, so there is no licence fee. Where a project also sells a hosted or enterprise version, the self-hosted path remains free.
Which scheduler project should I choose?
The list above is ranked by GitHub stars, but stars measure attention rather than fit. Check three things on each card: the licence (permissive versus copyleft), the language it is written in, and the last-push date — a high-star project that has not been pushed in a year is a liability.
Are these scheduler projects still maintained?
16 of the 23 were pushed in the last 90 days, and every card shows its exact last-push date so you can see the rest. Sort your shortlist by that date before committing to a migration.