AppFlowy vs Zettlr
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
Zettlr
Markdown editor for writers, researchers, and Zettelkasten users
| Feature | AppFlowy | Zettlr |
|---|---|---|
| Deploy effort | Under-an-hour setup | Read-the-docs project |
| Health score | 100 · Excellent | 94 · Excellent |
| Category | Notes & Knowledge Base | Notes & Knowledge Base |
| License | AGPL-3.0 | GPL-3.0 |
| Language | Dart | TypeScript |
| Setup difficulty | Medium | Easy |
| Min. RAM | 1,024 MB | 256 MB |
| Deployment | docker, binary, source | bare-metal, binary |
| GitHub stars | ★ 76,904 | ★ 13,577 |
| First released | 2021 | 2017 |
| Replaces | Notion, Evernote | Notion, Obsidian |
What are AppFlowy and Zettlr?
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
Zettlr
Zettlr is a desktop Markdown editor designed for academic writing and Zettelkasten note management, with citation support and internal linking. While desktop-first, it works on plain Markdown folders that can sync between machines.
- Zettelkasten linking
- Citation manager support
- Multi-format export
- Folder-based projects
AppFlowy vs Zettlr: key differences
AppFlowy is written in Dart, while Zettlr is built with TypeScript. Licensing differs — AGPL-3.0 for AppFlowy versus GPL-3.0 for Zettlr. Zettlr is the lighter option, starting around 256 MB of RAM against 1,024 MB for AppFlowy. Zettlr is the more established project (first released 2017), while AppFlowy arrived in 2021. AppFlowy has the considerably larger community, at 76,904 GitHub stars versus 13,577. AppFlowy lists first-class Docker deployment; Zettlr does not.
Why pick each one
Choose AppFlowy if…
- Strong Notion alternative
- Active development
Watch out for
- Self-hosted backend is newer
- Still maturing
Choose Zettlr if…
- Strong academic features
- Plain Markdown files
Watch out for
- Desktop only
- No native sync server
Frequently asked questions
Is AppFlowy or Zettlr better?
Neither is universally better. AppFlowy has the larger community, while Zettlr is simpler to set up (easy difficulty). Choose based on the comparison table above and your own setup.
Are AppFlowy and Zettlr free and open-source?
Yes. AppFlowy is licensed under AGPL-3.0 and Zettlr under GPL-3.0. Both can be self-hosted at no software cost.
Can I run AppFlowy and Zettlr with Docker?
AppFlowy: yes. Zettlr: check the project docs for container support.
Which is lighter on resources, AppFlowy or Zettlr?
Zettlr 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.