GitBook free for open source — what you get and how to apply

Free branded documentation site for open source projects on the "Sponsored site" plan: custom domain, logo, theme and fonts, scaled docs with sections and groups, AI Assistant, advanced site insights, private share links, and search indexing control. Sites can optionally run ethical ads to fund the project; GitBook takes none of the ad revenue.

Eligibility: for the project; Plan is described as designed for open source users; no further criteria stated on the page.

How to apply: Contact GitBook support via the button next to the Sponsored plan on the offer page.

last verified 2026-07-06