AppFlowy is the closest open-source Notion, free for personal use, self-hostable, with Pro at $12 a member a month billed yearly on its cloud. AFFiNE adds a whiteboard to docs and databases, is local-first with an MIT-licensed editor, free to self-host and $10 a seat a month for teams on its cloud. Obsidian is the pick for plain Markdown files on your own device with nothing pushed at you: the app is free without limits, and Sync is an optional $4 a month billed yearly. Anytype keeps your workspace encrypted on your devices, with only you holding the keys. If you used Notion mainly for tasks, ClickUp's free plan does that better, with Core at $9 a user a month. Rule: Obsidian or Anytype for a private notebook, AppFlowy or AFFiNE to replace a team wiki, ClickUp to replace a project board.
AppFlowy is an open-source Notion alternative you can use on its cloud or host yourself. Personal is free; Pro is $12 a member a month billed yearly ($16 monthly).
AFFiNE combines docs, whiteboards and databases, local-first, with an MIT-licensed editor and a self-hostable backend. Free for personal use and when self-hosted; Team is $10 a seat a month on its cloud; AI is an $8.90 a month add-on billed yearly.
Obsidian is a notes app that stores Markdown files on your own device and links them. The app is free without limits and with no sign-up; Sync is $4 a user a month billed yearly and Publish $8 a site a month, both optional, and the commercial licence is optional too.
A local-first workspace for notes, objects and collaboration where data is encrypted on your device and only you hold the keys, with the option to self-host backups.
ClickUp's plans for tasks, docs, goals and dashboards in one tool. Free costs nothing, Core is $9 a user a month and Business $17, with automation allowances rising by plan.
A hands-on comparison from October 2026 of the two most common answers to 'where do I keep my notes': Obsidian's local Markdown files against Notion's cloud databases and collaboration.
Notion's plans: databases inside the same pages as your docs and wiki, for a small team whose records sit next to written process. Free for individuals, Plus $10 a seat a month, Business $20.