head to head · open source
AppFlowy vs zotero-AI-Butler
AppFlowy has 77,031 GitHub stars, 6,049 forks, 1,030 open issues and last shipped 9 days ago. zotero-AI-Butler has 1,768 stars, 98 forks, 17 open issues and last shipped 3 days ago. AppFlowy leads on adoption by 4,257% (77,031 vs 1,768 stars). AppFlowy is written in Dart under AGPL-3.0; zotero-AI-Butler is written in TypeScript under AGPL-3.0. AppFlowy has attracted 8% as many forks as stars, zotero-AI-Butler 6%. zotero-AI-Butler 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.
← all 20902 open source comparisons
Side by side
| AppFlowy | zotero-AI-Butler | |
|---|---|---|
| GitHub stars | ★ 77K | ★ 1.8K |
| License | AGPL-3.0 | AGPL-3.0 |
| Written in | Dart | TypeScript |
| Last push | 2026-09-22 | 2026-09-28 |
| Forks | ⑂ 6.0K | ⑂ 98 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick AppFlowy if
- You weight community size — 77K stars and counting
- You want the AGPL-3.0 license terms
- Your stack matches Dart
- You value the larger contributor base for long-term maintenance
pick zotero-AI-Butler if
- You want the zotero-AI-Butler feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches TypeScript
- You evaluated both and zotero-AI-Butler fits your workflow better
About AppFlowy
AppFlowy is an open source collaborative workspace platform that combines note taking, project management, wikis, and AI features into a single interface. It runs as a desktop and mobile application and supports self hosting, built with Flutter for the frontend and Rust for the backend. AppFlowy lives in the productivity and knowledge management ecosystem, positioned explicitly as a Notion alternative.
read the full AppFlowy overview →
About zotero-AI-Butler
zotero AI Butler is a free, open source Zotero plugin written in TypeScript and licensed under AGPL 3.0 that calls large language models to read the PDFs already sitting in a Zotero library and writes the results back as native Zotero notes, built for researchers, students, and anyone whose "read later" pile has outgrown their reading time.
read the full zotero-AI-Butler overview →
More in Productivity & Utilities
Related comparisons
More Note Taking & Knowledge Management projects
Compare either of these against the rest of the Note Taking & Knowledge Management field.
Frequently asked questions
Is AppFlowy or zotero-AI-Butler more popular?
AppFlowy has 77,031 GitHub stars and zotero-AI-Butler has 1,768. AppFlowy has the larger community by that measure.
Are AppFlowy and zotero-AI-Butler free?
Both are open source. AppFlowy is licensed under AGPL-3.0 and zotero-AI-Butler under AGPL-3.0. Neither carries a licence fee.
What is the difference between AppFlowy and zotero-AI-Butler?
AppFlowy is written in Dart and zotero-AI-Butler 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, AppFlowy or zotero-AI-Butler?
Choose AppFlowy if you want the larger community (77,031 stars) or its AGPL-3.0 licence terms. Choose zotero-AI-Butler if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.