foropensource

Cossistant Pro plan (OSS friends Program)

Cossistant Pro plan (support/chat widget) free with included credits, plus a dofollow listing on their featured projects page, a guest blog post opportunity, and integration/customization help from the team.

Eligibility: for the project; non-commercial only; public repo required; Requires a public GitHub repo with recent activity and 100+ stars; project must not be profitable yet. In return, must keep Cossistant branding in the widget and display a linked OSS badge in the README.

How to apply: Apply via the "Join the OSS friends Program" button on the page.

last verified 2026-07-07

Discourse hosted forum (probono plan for open source)

Free managed Discourse forum hosting on the probono plan: unlimited members and chat, unlimited public and private categories, unlimited tags, custom groups, email support, custom and community themes, custom domain, API and webhook access, and 5 staff seats. Hosted on a .discourse.group subdomain unless approved for a custom domain.

Eligibility: for the project; Aimed at popular open source projects; application form asks for project/repository link and contributor count (10+/100+/1000+/10000+). Detailed criteria in the "Free Hosting for Open Source v2" blog post.

How to apply: Application form on the offer page (email, community name, project link, description, contributor count, desired URL); agree to Discourse Self-Serve Hosting Terms.

last verified 2026-07-06

Zulip Cloud Standard

Zulip Cloud Standard (the paid team chat plan, including full message history) free for open-source projects; Zulip sponsors hundreds of open-source projects including Rust and Lean.

Eligibility: for the organization; Open-source project communities; formal criteria not published on the page — sponsorship requests are reviewed. Self-hosting the 100% open-source Zulip server is an alternative.

How to apply: Create a Zulip Cloud organization and use the "Request sponsorship" flow (or contact sales@zulip.com).

last verified 2026-07-06