AppFlowy vs NoteDiscovery
A side-by-side comparison of two self-hosted notes & knowledge base options — licensing, setup difficulty, resource needs, and what each one replaces.
AppFlowy
Open-source workspace and Notion alternative
VS
NoteDiscovery
Self-hosted Markdown knowledge base with graph view
| Feature | AppFlowy | NoteDiscovery |
|---|---|---|
| Deploy effort | Under-an-hour setup | Under-an-hour setup |
| Health score | 100 · Excellent | 87 · Excellent |
| Category | Notes & Knowledge Base | Notes & Knowledge Base |
| License | AGPL-3.0 | MIT |
| Language | Dart | JavaScript |
| Setup difficulty | Medium | Medium |
| Min. RAM | 1,024 MB | 256 MB |
| Deployment | docker, binary, source | docker, source |
| GitHub stars | ★ 76,892 | ★ 2,813 |
| First released | 2021 | 2024 |
| Replaces | Notion, Evernote | Obsidian, Notion |
What are AppFlowy and NoteDiscovery?
AppFlowy
AppFlowy is an open-source workspace for notes, wikis, and project management designed as a privacy-first alternative to Notion. It can run locally and supports a self-hosted sync backend.
- Notion-like blocks and databases
- Local-first data
- Self-hostable cloud backend
- Cross-platform apps
NoteDiscovery
NoteDiscovery is a self-hosted Markdown knowledge base featuring wikilinks, a graph view, a drawing editor, and LaTeX and Mermaid rendering. It is designed for building and exploring a connected personal knowledge base.
- Wikilinks and graph view
- Drawing editor
- LaTeX and Mermaid support
- Self-hosted knowledge base
AppFlowy vs NoteDiscovery: key differences
AppFlowy is written in Dart, while NoteDiscovery is built with JavaScript. Licensing differs — AGPL-3.0 for AppFlowy versus MIT for NoteDiscovery. NoteDiscovery is the lighter option, starting around 256 MB of RAM against 1,024 MB for AppFlowy. AppFlowy is the more established project (first released 2021), while NoteDiscovery arrived in 2024. AppFlowy has the considerably larger community, at 76,892 GitHub stars versus 2,813.
Why pick each one
Choose AppFlowy if…
- Strong Notion alternative
- Active development
Watch out for
- Self-hosted backend is newer
- Still maturing
Choose NoteDiscovery if…
- Released under the MIT license
- First-class Docker support for quick deployment
- Active community (2.8k GitHub stars)
- Written in JavaScript
Frequently asked questions
Is AppFlowy or NoteDiscovery better?
Neither is universally better. AppFlowy has the larger community; both share a medium setup difficulty, so the decision comes down to features and licensing.
Are AppFlowy and NoteDiscovery free and open-source?
Yes. AppFlowy is licensed under AGPL-3.0 and NoteDiscovery under MIT. Both can be self-hosted at no software cost.
Can I run AppFlowy and NoteDiscovery with Docker?
AppFlowy: yes. NoteDiscovery: yes.
Which is lighter on resources, AppFlowy or NoteDiscovery?
NoteDiscovery has the smaller minimum footprint at 256 MB of RAM, compared to about 1,024 MB for AppFlowy. Real-world usage depends on library size, user count, and enabled features.