Who funds them, what they fund and how to apply.
Filecoin ProPGF Batch 2 allocated $3,220,200 in milestone-based prospective funding to 16 projects spanning core infrastructure, developer tooling, ecosystem growth, coordination, and integrations. The round received 102 applications and funded 15.7% of them.
Filecoin RetroPGF Round 3 concluded after distributing 585,000 FIL to public-goods projects.
A completed Flow Grants DAO round delivered with DoraHacks for Flow ecosystem builders. The round advertised more than $100,000 in total funding, including 50,000 FLOW in prizes.
A 50,000 OP builder-bounty pool for projects integrating Gelato and Optimism. The program was funded from Gelato's 300,000 OP Phase 0 allocation, which also subsidized executor fees for applications operating on Optimism.
GG24 Deep Funding is Gitcoin's mechanism for allocating funding to open-source repositories valuable to Ethereum, using model-weighted submissions reviewed by round operators and an expert committee. The Web3 Tooling and Infra Round approved $350,000 for allocation under this mechanism.
The GG24 Public Goods Tooling Development Round ran from October 2025 through March 2026, allocating $123,800 in total funding. It distributed $83,800 in proactive funding across 12 projects via two conviction voting pools, awarded $40,000 in performance-based retro funding, and paid a $20,000 operation fee (16.1% of total). The round aimed to increase interoperability, create cross-project collaborations, improve UI/UX in public goods funding workflows, and advance tooling toward production readiness.
A seasonal public-goods funding program (running since 2019) that lets the crypto community fund open-source and ecosystem projects. GG24 (Gitcoin 3.0, ~$1.8M, October 2025) is complete. GG25 has been discussed in governance but has no open application window as of 2026-08-29. Grants Stack Builder (builder.gitcoin.co) is offline.
Season 3 of GoodDollar's GoodBuilders program offered a $50,000 streaming fund in G$ for projects building and growing on Celo. This season has ended; it is retained as a historical funding round.
Google.org's AI for Science fund supported scientific projects using AI and announced 12 recipients on January 26, 2026. The application and selection round is concluded.
Polygon's Community Treasury Board used this Season One call to select experienced grant distributors to manage funding for new and existing ecosystem projects. The application period has ended; this record documents the completed allocator selection process.
A postdoctoral fellowship from the International Centre for Theoretical Sciences and the National Centre for Biological Sciences in Bangalore focused on AI in biology. Applications closed on March 1, 2026.
A Knight Foundation challenge series that funded ideas at the intersection of journalism, technology, and civic information, with themed editions including Libraries, Data, and Open Gov. Each edition selected full-award winners alongside smaller Prototype Fund awards; software developed with News Challenge grant funds had to be released open source. Sources for its editions now live on the foundation's legacy site.
Knight Foundation's Prototype Fund supported early-stage media, information, and arts-technology ideas through small grants and structured prototyping support. The documented calls and award cohorts are legacy programs from the 2010s; no current Prototype Fund application window is published.
KUB Chain has introduced a developer grants program structured around three pillars of support to foster innovation within its ecosystem. The program aims to empower builders by providing support for growth and development on the KUB network. The announcement did not include funding amounts, an application route, or a launch date, so the program remains announced rather than open.
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.
Status describes whether a program is running. Application methods are recorded separately. Read the funder’s terms before applying.