Who funds them, what they fund and how to apply.
A Google Chrome-run fund, fiscally hosted by Open Source Collective, that paid out to 10 open-source projects in the "advanced apps" space (progressive web apps and related web-platform capabilities) in a single distribution window in October 2022.
3-month part-time fellowship (7 positions) building open-source civic data systems, OSINT, and structured transparency data in South Africa ahead of elections.
A collaborative research-grants initiative — Ford Foundation with the Alfred P. Sloan Foundation, Mozilla's Open Source Support programme, Omidyar Network, and Open Society Foundations (fiscally hosted by Open Collective Foundation for the 2020 round) — funding research on the open-source code and digital infrastructure underpinning the internet, including how to sustain maintainer communities and address systemic inequities in the field. Ran across a 2018 wave (managed jointly by Ford and Sloan) and a larger 2020 collaborative wave.
The Drupal Association offered needs-based scholarships and community grants tied to DrupalCon Atlanta 2025 (24-27 March 2025). Applications for that event are closed; this record is the event-specific call, not a standing year-round intake.
Annual global program pairing new open-source contributors with mentoring organizations for 12+ week projects, with PPP-adjusted stipends of $750-$6,600.
Horizon Europe call topic (HORIZON-CL4-2026-04-HUMAN-02) funding work on a Web 4.0 architectural framework and an open internet stack, run through the EU Funding and Tenders portal. The call deadline was April 15, 2026.
A 12-month fellowship for researchers, advocates, educators, technical developers, and other practitioners working to reduce barriers to digital financial participation. Each fellow receives $72,000 in compensation plus a $20,000 project budget; the 2026 application window closed June 15 and is now under review.
Meta's second Llama Impact Grants call awarded more than $1.5 million to 10 companies, startups, and universities using open-source Llama models for social and economic impact. Applications for that round closed in November 2024, and recipients were announced in April 2025.
Mozilla Open Source Support's Foundational Technology track funded open-source software that Mozilla relies on in its products, infrastructure, or internal work. MOSS has been on indefinite hiatus since the 2020 Mozilla restructuring and is not accepting applications.
A one-time Mozilla Open Source Support (MOSS) track funding open-source projects responding to the COVID-19 pandemic (contact tracing/health data tools, mutual-aid logistics, medical hardware). Made at least 6 awards totaling roughly $214,964, including to OpenMRS, Careables, Open Food Network, and VentMon. Part of the broader MOSS program, now on indefinite hiatus.
The Secure Open Source (SOS) track of Mozilla Open Source Support paid for third-party security audits of widely used open-source software and the remedial work to fix problems found. Of the awards with a disclosed dollar amount, sizes ranged from $15,000 to $187,500; many entries in Mozilla's award directory do not disclose an amount. Mozilla selected candidates directly rather than running an open application process. The broader MOSS program is on indefinite hiatus and not accepting new applications following Mozilla's 2020 restructuring.
The Seed Awards track of Mozilla Open Source Support (MOSS) gave early-stage funding to promising open-source projects aligned with Mozilla's mission. Made at least 22 awards totaling roughly $150,000, including to CryptPad, F-Droid, Open Food Facts, FreeBSD, and Kiwi TCMS. Part of the broader MOSS program, now on indefinite hiatus.
The Mozilla Technology Fund (MTF) gave awards of up to $50,000 plus a 12-month mentorship cohort to open-source projects tackling a themed public-interest technology challenge each round. The latest sourced cohort is the 2024 AI and Environmental Justice round; no later public call is on file.
NLnet-run fund supporting service portability and personal freedom in hosted cloud/fediverse services (e.g. PeerTube, Mastodon, email, VPN, private cloud on NixOS). NLnet published the twelfth call as the fund's final intake; it closed 1 August 2026 and no further applications are accepted.
NLnet-run fund supporting free/open-source privacy-preserving digital payment infrastructure built on GNU Taler. NLnet published the fourteenth call as the fund's final intake; it closed 1 August 2026 and no further applications are accepted.
An NLnet-managed fund within the EU Next Generation Internet initiative that awarded small-to-medium R&D grants (EUR 5,000-50,000 for first proposals) to deliver, mature, and scale new internet commons across the full technology stack. NLnet published the thirteenth call as the fund's final intake; no further applications are sought.
Dated record of NLnet's August 2026 Open Call, which closed 1 August 2026. The standing vehicle for later odd-month calls is NLnet General Grants.
Small grants to help NumFOCUS's fiscally sponsored and affiliated open-source scientific computing projects improve usability, grow their communities, and speed release cycles. Calls for proposals normally run 3x/year; applications are currently closed while NumFOCUS updates its financial and administrative systems.
Status describes whether a program is running. Application methods are recorded separately. Read the funder’s terms before applying.