head to head · open source
sim vs Eigent
sim has 29,680 GitHub stars, 3,843 forks, 336 open issues and last shipped today. Eigent has 15,327 stars, 1,829 forks, 227 open issues and last shipped 2 days ago. sim leads on adoption by 94% (29,680 vs 15,327 stars). sim is written in TypeScript under Apache-2.0; Eigent is written in TypeScript under Apache-2.0. sim has attracted 13% as many forks as stars, Eigent 12%. sim was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (agentic-workflow), 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
| sim | Eigent | |
|---|---|---|
| GitHub stars | ★ 30K | ★ 15K |
| License | Apache-2.0 | Apache-2.0 |
| Written in | TypeScript | TypeScript |
| Last push | 2026-09-20 | 2026-09-18 |
| Forks | ⑂ 3.8K | ⑂ 1.8K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick sim if
- You weight community size — 30K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick Eigent if
- You want the Eigent 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 Eigent fits your workflow better
About sim
Sim is an open source collaborative workspace for building, deploying, and monitoring AI agents and workflows. It lives in the TypeScript ecosystem and is distributed under the Apache 2.0 license, with a repository that has accumulated roughly 29,600 stars and 3,800 forks over its two year history. The project positions itself as a single surface where chat, workflows, tables, files, and knowledge coexist, whether accessed through a browser or a desktop application for macOS.
About Eigent
Eigent is open source Cowork desktop application. It sits in AI & Machine Learning / AI Interaction & Interfaces ecosystem. User builds, manages, deploys custom AI workforce. Workforce turns complex workflows into automated tasks. Directory lists homepage https://www.eigent.ai, language TypeScript, license Apache 2.0, stars 15273, forks 1824. Project builds on CAMEL AI open source project.
read the full Eigent overview →
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Frequently asked questions
Is sim or Eigent more popular?
sim has 29,680 GitHub stars and Eigent has 15,327. sim has the larger community by that measure.
Are sim and Eigent free?
Both are open source. sim is licensed under Apache-2.0 and Eigent under Apache-2.0. Neither carries a licence fee.
What is the difference between sim and Eigent?
sim is written in TypeScript and Eigent 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, sim or Eigent?
Choose sim if you want the larger community (29,680 stars) or its Apache-2.0 licence terms. Choose Eigent if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.