head to head · open source
xxl-job vs Slickflow
xxl-job has 30,561 GitHub stars, 11,486 forks, 79 open issues and last shipped 2 months ago. Slickflow has 920 stars, 264 forks, 11 open issues and last shipped 3 months ago. xxl-job leads on adoption by 3,222% (30,561 vs 920 stars). xxl-job is written in Java under GPL-3.0; Slickflow is written in C# under MIT. xxl-job has attracted 38% as many forks as stars, Slickflow 29%. 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 | Slickflow | |
|---|---|---|
| GitHub stars | ★ 31K | ★ 920 |
| License | GPL-3.0 | MIT |
| Written in | Java | C# |
| Last push | 2026-07-21 | 2026-06-24 |
| Forks | ⑂ 11K | ⑂ 264 |
| 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 Slickflow if
- You want the Slickflow feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches C#
- You evaluated both and Slickflow 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 Slickflow
Slickflow Current Version: NET8 1. 🤖 AI Powered Workflow Automation SlickFlow: Intelligent Workflow Automation with Large Language Models Slickflow integrates cutting edge Large Language Model (LLM) nodes directly into BPMN workflows, enabling advanced conversational reasoning, RAG (Retrieval Augmented Generation), image understanding and other AI capabilities as first class workflow steps . This transforms traditional workflow systems into dynamic, AI driven orchestration platforms. 1.1 Native LLM Node Integration Add LLM / RAG / Agent nodes into your process diagrams as easily as traditional service tasks. Orc…
read the full Slickflow overview →
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Frequently asked questions
Is xxl-job or Slickflow more popular?
xxl-job has 30,561 GitHub stars and Slickflow has 920. xxl-job has the larger community by that measure.
Are xxl-job and Slickflow free?
Both are open source. xxl-job is licensed under GPL-3.0 and Slickflow under MIT. Neither carries a licence fee.
What is the difference between xxl-job and Slickflow?
xxl-job is written in Java and Slickflow 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 Slickflow?
Choose xxl-job if you want the larger community (30,561 stars) or its GPL-3.0 licence terms. Choose Slickflow if its feature set, stack or MIT licence fits better. Both are self-hostable.