NGI Zero grants
NLnet · Grant · checked Nov 12, 2026 yesterday
Grants for technical open source development, with a call deadline every two months. EU funds expect a European dimension.
- What you get
- €5,000 to €50,000 for a first grant
- Amount
- No dollar amount stated
- Window
- Open nowNext deadline, 12:00 CET
- Next date
- Nov 3, 2026: Next deadline, 12:00 CET
- For
- For the project
- Lasts
- No end date
- First grant
- €5,000 to €50,000
- Deadlines
- Every two months
- Focus
- Technical development
- Who can get it
- Open source technical work; EU-supported funds usually need applicants from Horizon Europe eligible countries.
Next deadline: November 3rd 2026 12:00 CET (noon)
Other funding perks
Alpha-Omega grants
Grants for security work in critical open source, decided in four seasons a year: a month to apply, a month to co-design the work, a month to decide and fund.
Standalone projects, foundations and core ecosystem services under an OSI-approved license.
FOSS Sustainability Fund
Open Technology Fund support for maintaining internet freedom technology, in solicitation rounds.
Internet freedom technology projects; not in countries under US trade sanctions.
GitHub Secure Open Source Fund
Funding paid to the invited maintainers in tranches, security training in program sessions, and $10,000 in Azure credits.
Open source projects; selected applicants are interviewed.
Google Summer of Code
Contributors are paid to work on open source with mentoring organizations over the summer; the program ends in November.
Contributors new to open source; mentoring organizations apply separately.
Microsoft FOSS Fund
Every quarter Microsoft engineers nominate and vote on open source projects they use, and the fund distributes up to $12,500.
Projects with an OSI-approved license, nominated by a Microsoft employee who contributes.
Outreachy internships
$7,000 for a 3-month internship. Paid, remote open source internships twice a year for people underrepresented in tech.
Anyone who faces underrepresentation, systemic bias or discrimination in tech where they live.