3 alternatives to Notion
Compare free and open-source solutions before building your own. Check each option’s license, setup, and limitations.
Notion, except the useful copy can live on your machine.
LicenseAGPL-3.0
PlatformsOn your machine or in the cloud
InstallationDesktop or mobile installer, hosted signup, or Docker self-hosting
DataLocal app data stays in AppFlowy's application-data directory; self-hosted sync uses PostgreSQL and S3-compatible storage
Limitations compared to NotionIts database formulas, integrations, automation, publishing and real-time collaboration are less mature than Notion's.
SetupNone for local use; self-hosting adds Docker, PostgreSQL, object storage, mail, HTTPS and backups
Facts verified 2026-08-10
Blocks, databases and relations with local storage and considerably more exposed wiring.
LicenseAGPL-3.0
PlatformsOn your machine or in the cloud
InstallationDesktop or mobile package, or Docker
ModelsOpenAI API or OpenAI-compatible endpoints, including locally hosted backends configured by base URL
DataWorkspace blocks are JSON .sy files with assets on disk; the project warns that ordinary sync-drive folders can corrupt the workspace
Limitations compared to NotionIt is much weaker for frictionless team collaboration, public sharing and polished relational databases than Notion.
SetupThe app installs cleanly, but built-in cloud sync is paid and generic sync-folder services are explicitly unsafe
Facts verified 2026-08-10
Notion and Miro had one child, then let it keep files locally.
LicenseMIT
PlatformsOn your machine or in the cloud
InstallationDesktop or mobile installer, hosted signup, or Docker self-hosting
DataLocal-first workspace data is stored on the device; self-hosted sync uses the configured server database and storage
Limitations compared to NotionIts databases, automations, integrations, sharing and collaborative polish are less mature than Notion's.
SetupNone for the desktop app; self-hosting requires Docker, persistent storage, a domain and server administration
Facts verified 2026-08-10
Updated 2026-08-10 · no paid listings
| Tool | License | Setup | Platforms | Stars | Activity |
|---|---|---|---|---|---|
| AppFlowy | AGPL-3.0 | One-click installation | web, macos, windows, linux, ios, android, self-hosted | 74,999 | 2026-07 |
| SiYuan | AGPL-3.0 | One-click installation | macos, windows, linux, android, self-hosted, browser-extension | 45,647 | 2026-08 |
| AFFiNE | MIT | One-click installation | web, macos, windows, linux, ios, android, self-hosted | — | — |
They pay for a shared workspace that nontechnical teammates can trust and understand. If those points do not matter to you, the options above could save $120 per year.
Is there a free alternative to Notion?
Yes: AppFlowy, SiYuan, AFFiNE. This page lists 3 free or open-source options. Check the limitations of each.
Should I build my own Notion?
Our verdict: With trade-offs. A solo notes-and-database workspace is buildable, but Notion's block editor, permissions, sync, templates, AI, integrations, and collaboration take real product work. The complete prompt is on the Notion page on Vibe Radar.
