Assembly Line

Docmost vs Slab

Docmost and Slab are both wiki and knowledge base software. Docmost is open source under AGPL-3.0, with 22k GitHub stars. Slab is a commercial product from Slab.

Which to pick

Pick Docmost when
A team wants Confluence-style documentation it can self-host on Postgres.
Pick Slab when
A small or mid-size team wants a simpler, tidier wiki than Confluence or Notion.

Side by side

What it does

A collaborative wiki with real-time editing, spaces, permissions, comments and built-in diagrams, as a Confluence or Notion alternative.

A clean team wiki with topics, a good editor and unified search across tools like Google Drive, GitHub and Slack.

Watch out

Still pre-1.0, AGPL licensed, with some features in a paid enterprise edition.

A small vendor with fewer features and integrations than the large suites.

Ready for

Usable

Production-ready

Runs as

Self-hosted server and cloud service

Cloud service

Built with

TypeScript, React, NestJS, PostgreSQL and Redis

Not published

Source code

Open source, AGPL-3.0 (network copyleft)

Closed source, sold by Slab

What the license allows

Use inside your business is unrestricted. If you change it and let customers use it over the internet, you must publish your changes.

Closed source: you use it under the maker's terms and cannot change or resell the code.

How widely known

22k GitHub stars

No Wikipedia article of its own

How established

Established: started 3 years ago, latest release v0.97.0.

Not known

Other comparisons

More wiki and knowledge base software

Every wiki and knowledge base product and project, ranked

Both sides were judged on 2026-11-03 from makers' descriptions, Wikipedia, READMEs and GitHub data. License, age and popularity lines are worked out directly.