head to head · open source
AppFlowy vs second-brain-cloudflare
AppFlowy has 78,112 GitHub stars, 6,160 forks, 1,030 open issues and last shipped 7 days ago. second-brain-cloudflare has 841 stars, 124 forks, 16 open issues and last shipped 5 days ago. AppFlowy leads on adoption by 9,188% (78,112 vs 841 stars). AppFlowy is written in Dart under AGPL-3.0; second-brain-cloudflare is written in TypeScript under MIT. AppFlowy has attracted 8% as many forks as stars, second-brain-cloudflare 15%. second-brain-cloudflare 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.
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Side by side
| AppFlowy | second-brain-cloudflare | |
|---|---|---|
| GitHub stars | ★ 78K | ★ 841 |
| License | AGPL-3.0 | MIT |
| Written in | Dart | TypeScript |
| Last push | 2026-10-28 | 2026-10-30 |
| Forks | ⑂ 6.2K | ⑂ 124 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick AppFlowy if
- You weight community size — 78K 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 second-brain-cloudflare if
- You want the second-brain-cloudflare feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and second-brain-cloudflare fits your workflow better
About AppFlowy
AppFlowy ⭐️ The Open Source Alternative To Notion ⭐️ AppFlowy is the AI workspace where you achieve more without losing control of your data Website • Forum • Discord • Reddit • Twitter User Installation Download AppFlowy Desktop (macOS, Windows, and Linux) Other channels: FlatHub, Snapcraft, Sourceforge Available on App Store: iPhone Play Store: Android 10 or above; ARMv7 is not supported Self hosting AppFlowy Source Built With Flutter Rust Stay Up to Date Getting Started with development Please view the documentation for OS specific development instructions Roadmap AppFlowy Roadmap ReadMe AppFlowy Public…
read the full AppFlowy overview →
About second-brain-cloudflare
Private memory for you. Shared memory for your team. Available to every MCP compatible AI tool you use. Now with Team Edition — private personal layers plus a shared team layer, in one Worker. Claude, ChatGPT, Cursor, Codex, and the other AI tools you use do not naturally share context. You end up repeating the same projects, decisions, and preferences in every app. Second Brain gives those tools one persistent memory system. It runs in your own Cloudflare account, stays under your control, and retrieves the right context by meaning rather than exact wording. The desktop app is the easiest way to start. It…
read the full second-brain-cloudflare overview →
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Frequently asked questions
Is AppFlowy or second-brain-cloudflare more popular?
AppFlowy has 78,112 GitHub stars and second-brain-cloudflare has 841. AppFlowy has the larger community by that measure.
Are AppFlowy and second-brain-cloudflare free?
Both are open source. AppFlowy is licensed under AGPL-3.0 and second-brain-cloudflare under MIT. Neither carries a licence fee.
What is the difference between AppFlowy and second-brain-cloudflare?
AppFlowy is written in Dart and second-brain-cloudflare 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 second-brain-cloudflare?
Choose AppFlowy if you want the larger community (78,112 stars) or its AGPL-3.0 licence terms. Choose second-brain-cloudflare if its feature set, stack or MIT licence fits better. Both are self-hostable.