2,000+
Customers
Per official site
Report
A modern team knowledge base for your internal documentation, product specs, support answers, meeting notes, onboarding, & more…
Depends
DependsBuy if your team is docs-heavy and wants a fast wiki it can self-host.
Fast, self-hostable team wiki. Great fit for docs-heavy teams; fiddly for tiny ones, and note the recent auth-bypass CVE.
2,000+
Customers
Per official site
10
Years active
Per official site
CVE-2026-33640
Latest known CVE
Auth bypass, tracked by NVD
Yes
Self-hosting
Open-source repo on GitHub
Users praise the Markdown editor and speed
Called comprehensive; covers specs, onboarding, support docs
Auth-bypass CVE published; external audits ongoing
High-severity auth-bypass CVE (CVE-2026-33640) disclosed; team maintains security docs and commissions external audits.
Self-hosters on Reddit rate Outline as a strong, long-lasting wiki choice and G2 users like the Markdown editor.
Compare Outline with each alternative.
Polished all-rounder; easier for non-technical teams.
Outline vs NotionNewer open-source wiki positioning itself as a simpler Outline.
Outline vs DocmostEnterprise incumbent; heavier, but full-featured and hosted.
Based on ~12 public sources. Many 'Outline' search results referred to a Rachel Cusk novel and an unrelated VPN product; excluded.
Anonymous. You can change your vote.
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