AppFlowy Cloud 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.
| Feature | AppFlowy Cloud | Zettlr |
|---|---|---|
| Deploy effort | Under-an-hour setup | Read-the-docs project |
| Health score | 15 · At risk | 94 · Excellent |
| Status | Archived | Actively maintained |
| Category | Notes & Knowledge Base | Notes & Knowledge Base |
| License | AGPL-3.0 | GPL-3.0 |
| Language | Rust | TypeScript |
| Setup difficulty | Medium | Easy |
| Min. RAM | 1,024 MB | 256 MB |
| Deployment | docker | bare-metal, binary |
| GitHub stars | ★ 2,004 | ★ 13,577 |
| First released | 2023 | 2017 |
| Replaces | Notion | Notion, Obsidian |
What are AppFlowy Cloud and Zettlr?
AppFlowy Cloud
AppFlowy Cloud is the self-hostable backend service that powers collaboration and sync for the AppFlowy open-source workspace and note-taking application. It lets teams keep documents and data on their own servers.
- Self-hosted sync backend
- Real-time collaboration
- Document storage
- Open-source server
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 Cloud vs Zettlr: key differences
The biggest difference is maintenance: AppFlowy Cloud's repository is archived and no longer developed, while Zettlr is actively maintained. AppFlowy Cloud is written in Rust, while Zettlr is built with TypeScript. Licensing differs — AGPL-3.0 for AppFlowy Cloud versus GPL-3.0 for Zettlr. Zettlr is the lighter option, starting around 256 MB of RAM against 1,024 MB for AppFlowy Cloud. Zettlr is the more established project (first released 2017), while AppFlowy Cloud arrived in 2023. Zettlr has the considerably larger community, at 13,577 GitHub stars versus 2,004. AppFlowy Cloud lists first-class Docker deployment; Zettlr does not.
Why pick each one
Choose AppFlowy Cloud if…
- Released under the AGPL-3.0 license
- First-class Docker support for quick deployment
- Active community (2k GitHub stars)
- Written in Rust
Choose Zettlr if…
- Strong academic features
- Plain Markdown files
Watch out for
- Desktop only
- No native sync server
Frequently asked questions
Is AppFlowy Cloud or Zettlr better?
Zettlr is the stronger all-round pick: it has both the larger community and the simpler easy setup. Consider AppFlowy Cloud if its specific feature set fits your needs better.
Are AppFlowy Cloud and Zettlr free and open-source?
Yes. AppFlowy Cloud 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 Cloud and Zettlr with Docker?
AppFlowy Cloud: yes. Zettlr: check the project docs for container support.
Which is lighter on resources, AppFlowy Cloud or Zettlr?
Zettlr has the smaller minimum footprint at 256 MB of RAM, compared to about 1,024 MB for AppFlowy Cloud. Real-world usage depends on library size, user count, and enabled features.