head to head · open source
ponytail vs eko
ponytail has 182,779 GitHub stars, 10,094 forks, 270 open issues and last shipped 5 days ago. eko has 4,960 stars, 445 forks, 15 open issues and last shipped 8 months ago. ponytail leads on adoption by 3,585% (182,779 vs 4,960 stars). ponytail is written in JavaScript under MIT; eko is written in TypeScript under MIT. ponytail has attracted 6% as many forks as stars, eko 9%. ponytail was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (ai-agents), 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 | eko | |
|---|---|---|
| GitHub stars | ★ 183K | ★ 5.0K |
| License | MIT | MIT |
| Written in | JavaScript | TypeScript |
| Last push | 2026-10-29 | 2026-03-03 |
| Forks | ⑂ 10K | ⑂ 445 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick ponytail if
- You weight community size — 183K stars and counting
- You want the MIT license terms
- Your stack matches JavaScript
- You value the larger contributor base for long-term maintenance
pick eko if
- You want the eko feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and eko fits your workflow better
About ponytail
Ponytail He says nothing. He writes one line. It works. 54% less code (up to 94%) · 20% cheaper · 27% faster · 100% safe Measured on real Claude Code sessions editing a real open source repo (FastAPI + React), against the same agent with no skill. 54% is the mean across 12 feature tasks (Haiku 4.5, n=4); it reaches 94% where an agent over builds (a date picker) and is near zero where the code is already minimal. ponytail keeps every safety guard while a bare "write one liners" prompt drops one. (The earlier single shot benchmark reported 80 94% as a flat figure; against a fair agentic…
read the full ponytail overview →
About eko
Eko Build Production ready Agentic Workflow with Natural Language Eko (pronounced like 'echo') is a production ready JavaScript framework that enables developers to create reliable agents, from simple commands to complex workflows . It provides a unified interface for running agents in both computer and browser environments . News 2025 11: Eko 4.0 supports chat conversations & optimizes agent logic. 2025 09: Eko 3.0 introduces dependency aware parallel agent execution. 2025 09: New pause, resume, and interrupt controls with task snapshot workflow recovery. 2025 09: Monorepo tooling migrated to pnpm for…
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Frequently asked questions
Is ponytail or eko more popular?
ponytail has 182,779 GitHub stars and eko has 4,960. ponytail has the larger community by that measure.
Are ponytail and eko free?
Both are open source. ponytail is licensed under MIT and eko under MIT. Neither carries a licence fee.
What is the difference between ponytail and eko?
ponytail is written in JavaScript and eko 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 eko?
Choose ponytail if you want the larger community (182,779 stars) or its MIT licence terms. Choose eko if its feature set, stack or MIT licence fits better. Both are self-hostable.