Open Source Friendly

Open Collective
DonationsProvides tools for collectives to receive money and mechanisms to spend their money in a transparent way.

Open Gift
DonationsAllows open source consumers to send requests for implementations to the open source project teams.

Open Source Coin
CrowdfundingA decentralized network run by the community and contributors, with a sustainable economy and value redistribution.

Scarf
PaywallA cross-platform package manager for usage insights and payment collection.

Software Freedom Conservancy
DonationsA not-for-profit charity that helps promote, improve, develop, and defend FLOSS projects.

Software in the Public Interest
DonationsA non-profit organization to help organizations develop and distribute open hardware and software.

SourceCred
DonationsA tool for attributing credit to contributions based on metrics that describes how important they were.
Staroid
InfrastructureStaroid is a hosting platform that turns open source projects into running services to fund project contributors.

Thanks
DonationsA tool that helps you see if any of the software you depend on has authors seeking for donations

Tidelift
SupportProfessional assurances directly from the open source experts who know it best.

Utopian
CrowdfundingA provider of free crowdsourcing services to open source projects by incentivizing contribution.

XS Code
PaywallA platform for open source projects offering paid subscriptions for open core, dual licensing, support, models.