Choose My Stack
Join free
Outline logo

Outline

Open SourceOtherSelf-hostable

The fast, collaborative team wiki with real-time editing, slash commands and deep search — a self-hostable alternative to Notion and Confluence.

Open source alternative toNotion logoNotionConfluence logoConfluence

About Outline

Outline is what fast-moving teams reach for when Confluence feels slow and Notion feels like it wasn't built for documentation. It's a purpose-built team wiki with real-time collaborative editing, slash commands and search that actually finds things.

Because it's self-hostable, engineering and security teams can run Outline on their own infrastructure and keep company knowledge inside their own network — with the same BSL-licensed source available to audit. It integrates cleanly with Slack, GitHub and SSO providers most teams already use.

Outline organizes docs into nested collections rather than an open-ended page tree, which keeps large wikis navigable as they grow. For teams that want Notion-grade editing with the operational control of self-hosting, Outline is one of the most mature options available.

Key features

  • Real-time collaborationMultiple people can edit the same document at once, with presence and cursors like Notion or Google Docs.
  • Nested collectionsDocs organize into structured collections instead of an open-ended page tree, keeping big wikis navigable.
  • Fast, deep searchFull-text search across every document returns results instantly, even in large knowledge bases.
  • Self-hostable & auditableRun it on your own infrastructure with Docker, and read the source under the Business Source License.

The honest read

What we like
  • Real-time collaborative editing that feels as fast as Notion
  • Self-hostable with Docker for full data control
  • Clean integrations with Slack, GitHub and SSO
  • Nested collections keep large wikis organized as they grow
  • Mature project with a large, active company using it in production
Worth knowing
  • BSL license restricts competing hosted-Outline offerings
  • No native databases or kanban boards like Notion
  • Self-hosting requires running Postgres and Redis yourself
  • Fewer content block types than an all-in-one workspace

FAQ

Is Outline free to use?

Outline is free to self-host under the Business Source License. There's also a paid hosted plan if you'd rather not manage the infrastructure yourself.

Is Outline fully open source?

Outline's source is available under the Business Source License (BSL), which allows self-hosting and modification but restricts offering it as a competing hosted service.

Can I self-host Outline for my team?

Yes — Outline ships an official Docker setup, so teams can run it on their own servers with Postgres and Redis for full control over company documentation.

How is Outline different from Notion?

Outline is purpose-built for team documentation and wikis with real-time editing and deep search, while Notion is a broader all-in-one workspace with databases and boards. Outline is also self-hostable under its BSL license.

Does Outline integrate with Slack and GitHub?

Yes — Outline has built-in integrations for Slack, GitHub, and most SSO providers, so it slots into an existing team toolchain without much setup.

Categories
Tags
#notion-alternative#wiki#knowledge-base#self-hosted#collaboration#docs#teams#open-source
Built with
TypeScript logoTypeScriptReact logoReactNode.js logoNode.jsPostgreSQL logoPostgreSQLDocker logoDocker

Similar open-source projects