Sustainability Pillar
Funding for Open Source Projects
Funding is usually the first sustainability layer for an open source project. This page groups the catalogue into the four funding models that matter most in practice: recurring support, campaign funding, grants, and bounties.
If you are unsure where to start, begin with Donations for ongoing supporter revenue, Grants for ecosystem and foundation funding, or Bounties when you need to pay for specific issues and deliverables. Popular starting points include GitHub Sponsors, Open Collective, and Gitcoin.
Donations
Crowdfunding
Grants
Bounties
Funding subtype
Donations
Recurring or one-off support from individuals, companies, and communities.
When to use it: Start here when your project already has users who want to support ongoing maintenance.

Amazon Smile
Beerpay

Buy me Coffee

Flattr

Flossbank

FOSS Pay

Fountain

GitHub Sponsors

Hopsie

Houdini

Kauri

Ko-fi

Liberapay

LibreSelery

Open Collective

Open Gift

Patreon

Radicle

Shukran

Software Freedom Conservancy

Software in the Public Interest

SourceCred

StackAid

Thanks

Tipeee
Funding subtype
Crowdfunding
Campaign-style funding for a roadmap, release, or community-backed milestone.
When to use it: Use this when you have a clear goal, a launch narrative, and a time-bound funding target.

Commit Change

Commons Stack

Community Bridge

Dev Protocol

FairOSS

Fundition

Goteo

Hit Chain

Indiegogo

Kickstarter

NouGit

Open Source Coin

Permissionless Software Foundation

Pledgecamp

Repo.trade

Snowdrift

Utopian
Funding subtype
Grants
Non-dilutive funding from foundations, programs, and ecosystem sponsors.
When to use it: Best for infrastructure, public goods, research, or ecosystem work with strategic value.

Core Infrastructure Initiative

Free and Open Source Software Audit

Google Summer of Code

NLnet

NumFOCUS

Open Source Security Foundation

Season of Docs

Sovereign Tech Fund
Funding subtype
Bounties
Outcome-based payments tied to specific issues, features, and security fixes.
When to use it: Use this when you need targeted contributions rather than general recurring support.

Algora

BEPRO Network

Blocklancer
Bounties Network

Bountify

Bounty Source

BountyHub

Bugmark

Coinlancer

Fiverr

Fund Request

Gitcoin

Gitpay

Giveth

Hacken Proof

HackerOne

Issue Hunt

IT Sphere

Katalyse

Open Source Design

Opire
Pond

Status
