Charles has worked for 20 years to make JRuby the best possible Ruby on the JVM. He loves contributing to the Ruby community and bringing the power and beauty of the Ruby language to large enterprises around the world.

Support my work on open-source software!

A mobile product company. Building open source software and mobile products.

Box2D is a 2D physics engine for games. It has been used in hundreds of games and is integrated into several game engines.

Creative Commons builds open source tools to make openly licensed and public domain content easier to find and use. Our projects include the CC license chooser, the CC legal tool infrastructure, and a lot more!

We're Open Knowledge Brasil! Help us build civic technologies to open up public data. -- Somos a Open Knowledge Brasil! Ajude-nos a construir tecnologias cívicas para abrir dados públicos.

My name is Giampaolo Rodola. I'm a passionate Python developer who loves writing open source libraries for fun. I'm mostly known for being the author of psutil.

we will be able to transform the jangling discords of our nation, so every codebase from every era builds together, breaking the shoulders of giants from golden handcuffs, so bedroom hackers with spotty internet have the same tools as google.

We are a boutique management consulting firm. We like to share code that we've developed with the community and will appreciate sponsorship to continue maintenance.

Support Vike's open source work.

Support languageXchange that is free and open source language exchange app on ios, android and pwa.

👋 Hi, I'm Eadwin! I'm a passionate software developer with 10+ years of experience. I love creating open-source tools and libraries. Your support helps me continue my work and contribute to the developer community. Thank you!

Father, citizen, open source lover.

Support Chris Barth's open-source work! I use open-source, so I want to contribute to open-source, but that doesn't pay the bills :) Keep @node-saml and relatives alive!

My work includes building tools, creating educational resources, and contributing to open source projects. Your sponsorship will help me work on open source full-time, travel to conferences, and create more educational resources.

We are a medium-sized group of people who like devoting our free time writing open-source R packages related to machine learning.

Primarily working on the elixir language server, Lexical.

Support @webknjaz’s open source work!

In 2022 I want to make some money from open-source work, even if it's $0.1.

Software developer and reverse engineer working on porting the Android distribution LineageOS to the Fairphone 3

Open source work is the core of my being and purpose. Say hello, and build what you dream, friends!

Support refine's open-source work

Creator of BlackHole Virtual Audio Driver and SwiftOSC. Passionate about creating powerful audio tools that are efficient and simple to use.