head to head · open source
ponytail vs pyspur
ponytail has 141,465 GitHub stars, 7,581 forks, 270 open issues and last shipped 4 days ago. pyspur has 5,785 stars, 428 forks, 41 open issues and last shipped 3 months ago. ponytail leads on adoption by 2,345% (141,465 vs 5,785 stars). ponytail is written in JavaScript under MIT; pyspur is written in TypeScript under Apache-2.0. ponytail has attracted 5% as many forks as stars, pyspur 7%. ponytail was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (llm), 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
| ponytail | pyspur | |
|---|---|---|
| GitHub stars | ★ 141K | ★ 5.8K |
| License | MIT | Apache-2.0 |
| Written in | JavaScript | TypeScript |
| Last push | 2026-09-14 | 2026-06-29 |
| Forks | ⑂ 7.6K | ⑂ 428 |
| 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 pyspur if
- You want the pyspur feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches TypeScript
- You evaluated both and pyspur 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 pyspur
PySpur is an open source visual playground for building, testing, and deploying AI agents, aimed at AI engineers who want to iterate on agentic workflows without repeatedly rebuilding debugging, tracing, and deployment tooling from scratch.
read the full pyspur overview →
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Frequently asked questions
Is ponytail or pyspur more popular?
ponytail has 141,465 GitHub stars and pyspur has 5,785. ponytail has the larger community by that measure.
Are ponytail and pyspur free?
Both are open source. ponytail is licensed under MIT and pyspur under Apache-2.0. Neither carries a licence fee.
What is the difference between ponytail and pyspur?
ponytail is written in JavaScript and pyspur in TypeScript. 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 pyspur?
Choose ponytail if you want the larger community (141,465 stars) or its MIT licence terms. Choose pyspur if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.