Notion costs $12/mo.
These cost $0.
3 free alternatives to Notion, checked for license, recent activity and real adoption. Each one tells you the catch, so you can switch with your eyes open.
Notion vs Free Alternatives Matrix
Quick side-by-side comparison · $0/mo vs $12/mo
| Alternative | Type | License | Where It Runs | Stars | Head-to-Head |
|---|---|---|---|---|---|
| AppFlowy | open source | AGPL-3.0 | Local or hosted | ★ 75k | Notion vs AppFlowy → |
| SiYuan | open source | AGPL-3.0 | Local or hosted | ★ 46k | Notion vs SiYuan → |
| AFFiNE | free | MIT | Local or hosted | ★ $0 forever | Notion vs AFFiNE → |
The picks
2 open source · 1 free to use · ranked by fit
- 01
AppFlowy
open sourceAGPL-3.0Local or hosted75kjul 2026Notion, except the useful copy can live on your machine.
The catch vs NotionIts database formulas, integrations, automation, publishing and real-time collaboration are less mature than Notion's.
Install, platforms & data +
- platforms
- desktopmobilewebself-hostedone-click install
- install
- Desktop or mobile installer, hosted signup, or Docker self-hosting
- setup
- None for local use; self-hosting adds Docker, PostgreSQL, object storage, mail, HTTPS and backups
- your data
- Local app data stays in AppFlowy's application-data directory; self-hosted sync uses PostgreSQL and S3-compatible storage
- checked
- 2026-08-10
- 02
SiYuan
open sourceAGPL-3.0Local or hosted46kaug 2026Blocks, databases and relations with local storage and considerably more exposed wiring.
The catch vs NotionIt is much weaker for frictionless team collaboration, public sharing and polished relational databases than Notion.
Install, platforms & data +
- platforms
- desktopmobileself-hostedextensionone-click install
- install
- Desktop or mobile package, or Docker
- setup
- The app installs cleanly, but built-in cloud sync is paid and generic sync-folder services are explicitly unsafe
- engines
- OpenAI API or OpenAI-compatible endpoints, including locally hosted backends configured by base URL
- your data
- Workspace blocks are JSON .sy files with assets on disk; the project warns that ordinary sync-drive folders can corrupt the workspace
- checked
- 2026-08-10
- 03
AFFiNE
freeMITLocal or hostedNotion and Miro had one child, then let it keep files locally.
The catch vs NotionIts databases, automations, integrations, sharing and collaborative polish are less mature than Notion's.
Install, platforms & data +
- platforms
- desktopmobilewebself-hostedone-click install
- install
- Desktop or mobile installer, hosted signup, or Docker self-hosting
- setup
- None for the desktop app; self-hosting requires Docker, persistent storage, a domain and server administration
- your data
- Local-first workspace data is stored on the device; self-hosted sync uses the configured server database and storage
- checked
- 2026-08-10
Frequently Asked Questions
Direct answers · Notion open-source replacements
What is the best free alternative to Notion?+
The top free alternative to Notion is AppFlowy (open source, AGPL-3.0). Notion, except the useful copy can live on your machine. Other popular Notion replacements include SiYuan, AFFiNE.
Can I self-host a free replacement for Notion?+
Yes. Of the 3 free alternatives to Notion, 3 can be self-hosted on your own server or local machine: AppFlowy (AGPL-3.0), SiYuan (AGPL-3.0), AFFiNE (MIT).
How much does switching from Notion to a free alternative save?+
Notion starts at $12/month per seat ($144/year). Switching a 5-person team to a free alternative like AppFlowy saves $720 per year in software subscription fees.
Should I vibe-code or build my own Notion clone from scratch?+
Our build verdict for Notion is KINDA (the core, yes. the polish, no). A solo notes-and-database workspace is buildable, but Notion's block editor, permissions, sync, templates, AI, integrations, and collaboration take real product work.
What is the catch when switching from Notion to AppFlowy?+
Its database formulas, integrations, automation, publishing and real-time collaboration are less mature than Notion's.
