head to head · open source
xxl-job vs libfork
xxl-job has 30,561 GitHub stars, 11,486 forks, 79 open issues and last shipped 2 months ago. libfork has 899 stars, 45 forks, 10 open issues and last shipped 4 months ago. xxl-job leads on adoption by 3,299% (30,561 vs 899 stars). xxl-job is written in Java under GPL-3.0; libfork is written in C++ under MPL-2.0. xxl-job has attracted 38% as many forks as stars, libfork 5%. xxl-job was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (scheduler), so they are genuine substitutes rather than adjacent tools.
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 | libfork | |
|---|---|---|
| GitHub stars | ★ 31K | ★ 899 |
| License | GPL-3.0 | MPL-2.0 |
| Written in | Java | C++ |
| Last push | 2026-07-21 | 2026-05-25 |
| Forks | ⑂ 11K | ⑂ 45 |
| 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 libfork if
- You want the libfork feature set and don't need the biggest community
- You prefer the MPL-2.0 license terms
- Your stack matches C++
- You evaluated both and libfork fits your workflow better
About xxl-job
XXL JOB is a distributed task scheduling framework written in Java and released under the GPL 3.0 licence, built for teams that need scheduled jobs to run reliably across a cluster of machines rather than inside a single application process.
read the full xxl-job overview →
About libfork
Welcome to libfork 🍴 A bleeding edge, lock free, wait free, continuation stealing coroutine tasking library. Now supplying 🌵! Libfork is primarily an abstraction for fully portable, strict, fork join parallelism. This is made possible without the use of any macros/inline assembly using C++20's coroutines. Ultra fine grained parallelism (the ability to spawn tasks with very low overhead) is enabled by an innovative implementation of an (almost) non allocating cactus stack utilizing segmented stacks . Libfork presents a cross platform API that decouples scheduling tasks (a customization point) from writing tasks.…
read the full libfork overview →
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Frequently asked questions
Is xxl-job or libfork more popular?
xxl-job has 30,561 GitHub stars and libfork has 899. xxl-job has the larger community by that measure.
Are xxl-job and libfork free?
Both are open source. xxl-job is licensed under GPL-3.0 and libfork under MPL-2.0. Neither carries a licence fee.
What is the difference between xxl-job and libfork?
xxl-job is written in Java and libfork in C++. 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 libfork?
Choose xxl-job if you want the larger community (30,561 stars) or its GPL-3.0 licence terms. Choose libfork if its feature set, stack or MPL-2.0 licence fits better. Both are self-hostable.