foropensource

Atlassian Standard cloud products (Jira, Confluence, etc.)

No-cost Open Source licenses for Atlassian Standard cloud products (e.g. Jira, Confluence); the free offer applies to Standard plans only.

Eligibility: for the project; public repo required; Project must be public, with publicly accessible website and source repositories; you must create a cloud site with the desired Standard products and set up public access to it.

How to apply: Fill in the Open Source Project License Request form on the offer page; Atlassian follows up to validate and issue the license.

last verified 2026-07-06

Cal.com OSS sponsorship (sponsored team plan)

Sponsored (free) access to Cal.com's paid team offering for open source projects (applicants provide their Cal.com team slug); exact plan tier is not specified on the page. In exchange the project must display a "Book us with Cal.com" banner in its footer and README with UTM-tagged links.

Eligibility: for the project; Project must be open source and non-commercial, or a commercial open source company with less than $2M ARR; must explain why the generic free tier / self-hosted open core is insufficient. Limited openings per month; requests reviewed monthly at Cal.com's discretion.

How to apply: Email peer@cal.com with project description, confirmation of criteria, why the free tier is insufficient, your Cal.com team slug, and a link to the repository.

last verified 2026-07-07

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

All Products Pack (OSS development licenses)

Free licenses for the full JetBrains product lineup (IntelliJ IDEA Ultimate, PyCharm, WebStorm, etc.) for a project's core contributors, for use on the open source project.

Eligibility: for contributors; OSI license required; non-commercial only; public repo required; project at least 3 months old; Project may not offer paid sponsorship, receive commercial funding, provide paid support/consulting/training, or distribute paid versions; regular releases required; applicant must be a project lead or regular committer.

How to apply: Application form on the offer page; project lead applies on behalf of contributors.

last verified 2026-07-06

TeamCity (Open Source license)

Free TeamCity Professional Server open source license: unlimited servers with up to 100 build configurations per server and 3 build agents per server at no cost, with free upgrades during the license term.

Eligibility: for the project; OSI license required; non-commercial only; Restricted to development of non-commercial open source projects meeting the Open Source Definition; licensee must be an open source development group.

How to apply: Request via the JetBrains open source program page (team tool licenses, including TeamCity, are requested alongside All Products Pack subscriptions).

last verified 2026-07-06

YouTrack (OSS team license)

Free YouTrack issue tracking license for the open source team, requested through the JetBrains open source program (program covers team tools including YouTrack and TeamCity).

Eligibility: for the project; OSI license required; non-commercial only; project at least 3 months old; Same program terms as All Products Pack: no paid sponsorship, commercial funding, paid support, or paid versions. Note YouTrack also has a generic free tier for up to 10 users for anyone.

How to apply: Request team tool licenses via the open source program application form.

last verified 2026-07-06