head to head · open source
ponytail vs ruoyi-ai
ponytail has 141,465 GitHub stars, 7,581 forks, 270 open issues and last shipped 4 days ago. ruoyi-ai has 5,705 stars, 1,406 forks, 7 open issues and last shipped 7 days ago. ponytail leads on adoption by 2,380% (141,465 vs 5,705 stars). ponytail is written in JavaScript under MIT; ruoyi-ai is written in Java under MIT. ponytail has attracted 5% as many forks as stars, ruoyi-ai 25%. ponytail 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
| ponytail | ruoyi-ai | |
|---|---|---|
| GitHub stars | ★ 141K | ★ 5.7K |
| License | MIT | MIT |
| Written in | JavaScript | Java |
| Last push | 2026-09-14 | 2026-09-11 |
| Forks | ⑂ 7.6K | ⑂ 1.4K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick ponytail if
- You weight community size — 141K stars and counting
- You want the MIT license terms
- Your stack matches JavaScript
- You value the larger contributor base for long-term maintenance
pick ruoyi-ai if
- You want the ruoyi-ai feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Java
- You evaluated both and ruoyi-ai fits your workflow better
About ponytail
Ponytail is an open source agent skill for JavaScript and LLM based coding tools that makes an AI agent write the minimum working code for a task, and it is built for developers and teams running agents such as Claude Code, Codex, or Cursor against real repositories.
read the full ponytail overview →
About ruoyi-ai
RuoYi AI is an MIT licensed, Java based enterprise AI development framework for building AI agents, aimed at developers and platform teams that need multi provider LLM management, private knowledge bases, visual workflow orchestration and multi agent coordination in a single self hostable stack.
read the full ruoyi-ai overview →
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Frequently asked questions
Is ponytail or ruoyi-ai more popular?
ponytail has 141,465 GitHub stars and ruoyi-ai has 5,705. ponytail has the larger community by that measure.
Are ponytail and ruoyi-ai free?
Both are open source. ponytail is licensed under MIT and ruoyi-ai under MIT. Neither carries a licence fee.
What is the difference between ponytail and ruoyi-ai?
ponytail is written in JavaScript and ruoyi-ai in Java. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, ponytail or ruoyi-ai?
Choose ponytail if you want the larger community (141,465 stars) or its MIT licence terms. Choose ruoyi-ai if its feature set, stack or MIT licence fits better. Both are self-hostable.