head to head · open source
AstrBot vs tmi.js
AstrBot has 40,717 GitHub stars, 2,941 forks, 1,516 open issues and last shipped today. tmi.js has 1,590 stars, 205 forks, 34 open issues and last shipped 10 months ago. AstrBot leads on adoption by 2,461% (40,717 vs 1,590 stars). AstrBot is written in Python under AGPL-3.0; tmi.js is written in JavaScript under MIT. AstrBot has attracted 7% as many forks as stars, tmi.js 13%. AstrBot was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (chatbot), 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.
← all 20902 open source comparisons
Side by side
| AstrBot | tmi.js | |
|---|---|---|
| GitHub stars | ★ 41K | ★ 1.6K |
| License | AGPL-3.0 | MIT |
| Written in | Python | JavaScript |
| Last push | 2026-09-20 | 2025-11-21 |
| Forks | ⑂ 2.9K | ⑂ 205 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick AstrBot if
- You weight community size — 41K stars and counting
- You want the AGPL-3.0 license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick tmi.js if
- You want the tmi.js feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches JavaScript
- You evaluated both and tmi.js fits your workflow better
About AstrBot
AstrBot is an open source all in one Agent chatbot platform written in Python and licensed under AGPL 3.0. It integrates with mainstream instant messaging applications and provides conversational AI infrastructure for individuals, developers, and teams. The project lives in the AI and machine learning ecosystem, specifically the AI interaction and interfaces category, and it has been developed over roughly four years. Its repository carries 40,504 stars and 2,915 forks, and its documented homepage is astrbot.app. Topics attached to the project include agent, ai, chatbot, chatgpt, discord, docker, gemini, gpt, lla…
read the full AstrBot overview →
About tmi.js
tmi.js is a JavaScript client library for the Twitch Messaging Interface, usable from Node.js and directly in the browser, and built for developers who write Twitch chat bots and chat driven interfaces.
read the full tmi.js overview →
More in AI & Machine Learning
Related comparisons
More AI Interaction & Interfaces projects
Compare either of these against the rest of the AI Interaction & Interfaces field.
Frequently asked questions
Is AstrBot or tmi.js more popular?
AstrBot has 40,717 GitHub stars and tmi.js has 1,590. AstrBot has the larger community by that measure.
Are AstrBot and tmi.js free?
Both are open source. AstrBot is licensed under AGPL-3.0 and tmi.js under MIT. Neither carries a licence fee.
What is the difference between AstrBot and tmi.js?
AstrBot is written in Python and tmi.js in JavaScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, AstrBot or tmi.js?
Choose AstrBot if you want the larger community (40,717 stars) or its AGPL-3.0 licence terms. Choose tmi.js if its feature set, stack or MIT licence fits better. Both are self-hostable.