head to head · open source
xxl-job vs harmonist
xxl-job has 30,648 GitHub stars, 11,492 forks, 79 open issues and last shipped 25 days ago. harmonist has 2,244 stars, 209 forks, 1 open issues and last shipped 5 months ago. xxl-job leads on adoption by 1,266% (30,648 vs 2,244 stars). xxl-job is written in Java under GPL-3.0; harmonist is written in Python under MIT. xxl-job has attracted 37% as many forks as stars, harmonist 9%. xxl-job was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| xxl-job | harmonist | |
|---|---|---|
| GitHub stars | ★ 31K | ★ 2.2K |
| License | GPL-3.0 | MIT |
| Written in | Java | Python |
| Last push | 2026-10-09 | 2026-06-09 |
| Forks | ⑂ 11K | ⑂ 209 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick xxl-job if
- You weight community size — 31K stars and counting
- You want the GPL-3.0 license terms
- Your stack matches Java
- You value the larger contributor base for long-term maintenance
pick harmonist if
- You want the harmonist feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Python
- You evaluated both and harmonist fits your workflow better
About xxl-job
XXL JOB XXL JOB, a distributed task scheduling framework. Home Page Introduction XXL JOB is a distributed task scheduling framework. It's core design goal is to develop quickly and learn simple, lightweight, and easy to expand. Now, it's already open source, and many companies use it in production environments, real "out of the box". XXL JOB是一个分布式任务调度平台，其核心设计目标是开发迅速、学习简单、轻量级、易扩展。现已开放源代码并接入多家公司线上产品线，开箱即用。 Sponsor XXL JOB is an open source and free project, with its ongoing development made possible entirely by the support of these awesome backers. XXL JOB 是一个开源且免费项目，其正在进行的开发完全得益于支持者的支持。开源不易，前往赞助项目开发 金牌赞助方 阿里云…
read the full xxl-job overview →
About harmonist
If you are an AI agent asked to install or integrate this pack: read integration prompt.md and execute its steps. Do not apply AGENTS.template.md as a live rule inside the pack folder — it is the template that becomes the user project's AGENTS.md during integration. Harmonist Portable AI agent orchestration with mechanical protocol enforcement A drop in multi agent framework for Cursor, Claude Code, Copilot, Windsurf, Aider, and other AI coding assistants. Built and maintained by GammaLab · @GammaLabTechnologies Most AI coding frameworks trust the language model to follow the rules. Harmonist refuses to let it…
read the full harmonist overview →
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Frequently asked questions
Is xxl-job or harmonist more popular?
xxl-job has 30,648 GitHub stars and harmonist has 2,244. xxl-job has the larger community by that measure.
Are xxl-job and harmonist free?
Both are open source. xxl-job is licensed under GPL-3.0 and harmonist under MIT. Neither carries a licence fee.
What is the difference between xxl-job and harmonist?
xxl-job is written in Java and harmonist in Python. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, xxl-job or harmonist?
Choose xxl-job if you want the larger community (30,648 stars) or its GPL-3.0 licence terms. Choose harmonist if its feature set, stack or MIT licence fits better. Both are self-hostable.