FLOSS/fund

Open all year Zerodha All of India

Grant

Up to USD 100,000 a year per project (from USD 10,000)

Apply on the official site

What it funds: Sustainability funding for widely used free and open source software projects
Who can apply: Individuals, groups, communities or organisations maintaining a FOSS project
Project must already be widely used; very new projects are not considered
Need a bank account and tax documents to receive funds
When you can apply: Open all year
How to apply: Publish a funding.json manifest on your project site or repo and submit its URL to the FLOSS/fund directory
Best for: Early revenue, Growth stage
Sectors: Developer Tools
Run by: Companies and foundations

Solana Foundation Grants and Convertible GrantsAmount set per project; Superteam microgrants up to USD 10,000 Open all year
Ethereum Foundation Ecosystem Support Program (ESP)Amount set per project (paid in ETH) Open all year
Alpha-Omega Open Source Security GrantsTypically USD 50,000 to 100,000 Closes 31 Oct 2026
Epic MegaGrantsUSD 5,000 to 75,000 (up to USD 150,000 for exceptional projects) Closed
NLnet Open Calls (Restack and CodeSupply funds)€5,000 to €50,000 for a first grant Closes 3 Nov 2026
Odisha IT Policy Patent Registration Incentive75% of patent costs. Up to ₹2 lakh per Indian patent, ₹10 lakh per unit. Up to ₹5 lakh per foreign patent, ₹25 lakh per unit. Open all year
Amazon Propel Global Business AcceleratorUSD 100,000 shared by top 3 winners Closed

Developer Tools grants for startups

Starter opens 30 grants in full. Pro opens every one.