foropensource

Bump.sh Pro plan (API documentation)

Free access to the Bump.sh Pro plan (listed at $250/month) for open source projects — hosted API documentation and changelogs for OpenAPI/AsyncAPI definitions.

Eligibility: for the project; Project must be submitted for approval; page states only "Submit your project and get free access to Bump.sh Pro plan. We love open source."

How to apply: Email hello@bump.sh with your open source project details (link on the pricing page).

last verified 2026-07-06

Fibery (work & knowledge management platform)

Fibery is 100% free for all open-source projects (full product at no cost, not a discount). Fibery also offers a separate 50% permanent discount for educational and nonprofit organizations.

Eligibility: for the project; Page states the offer applies to open-source projects; no detailed criteria (license, age, activity) are published. Applicants who do not fit standard categories are invited to contact Fibery directly.

How to apply: Submit the application form for open-source projects linked from the special-pricing page ("just let us know").

last verified 2026-07-07

Sponsored site plan (open source docs)

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

Mintlify Pro (OSS Program)

Mintlify Pro plan free forever for qualifying open source projects: hosted docs with custom domain and branding, advanced analytics, and interactive API playground with live testing (Pro normally $250/month).

Eligibility: for the project; OSI license required; non-commercial only; Project must use a recognized OSS license (MIT, Apache 2.0, GPL, etc.), must not be venture-backed or revenue-funded, and must not be owned or primarily maintained by a for-profit company.

How to apply: Application form (Typeform) linked from the OSS program page.

last verified 2026-07-07

Read the Docs Community documentation hosting

Free, ad-supported documentation hosting for open source projects on Read the Docs Community: public repository cloning, public docs hosting, automatic builds, versioning, search, pull request previews, and CDN hosting. "Open source documentation is always free on Read the Docs Community."

Eligibility: for the project; public repo required; For free and open-source projects; hosted docs are public and ad-supported.

How to apply: Self-serve — sign up for the Community tier via the "Sign up for open source" link on the pricing page.

last verified 2026-07-06

Stainless SDK generator Starter plan (free for FOSS)

Stainless Starter plan (normally $79/month per SDK generator) free for qualifying non-commercial open source projects: SDK generation from OpenAPI specs, plus documentation site and MCP server generation.

Eligibility: for the project; non-commercial only; Limited to qualifying non-commercial open source (FOSS) projects; reviewed and approved case by case.

How to apply: Create a free account, then email Stainless (address on pricing page) to request FOSS approval.

last verified 2026-07-07

Oxygen XML Editor (open-source project donation)

Up to ten Named User 6-month subscription-free Oxygen XML licenses each year for a project's leads and core contributors.

Eligibility: for contributors; Requires an established website, a released product, active community (recent forum activity), updated news section, and regular builds. Licenses may only be used for developing the specified open source project; a visible Oxygen XML link on the project site is required.

How to apply: Application form on the offer page (project name, URL, license page, forum/mailing list, description, contact); Oxygen team reviews and responds.

last verified 2026-07-06