UltiMaker Cura is being used millions of times per week worldwide in schools, companies, and workshops. Donations ensure that Cura can stay free, and is maintained regularly independent of the profit of our 3D printer-manufacturing company.

Hi, my name is Michael Lee and I focus on all things related to SwiftUI. I focus on sharing and open sourcing various interactions and animations made with SwiftUI.

Friendly Captcha is the user-friendly and privacy-friendly CAPTCHA alternative.It‘s a tool for preventing spam on your website.Other CAPTCHAs are a burden on your users, Friendly Captcha respects your users.

I build Open Source VR and video streaming technology. I work on the Monado OpenXR runtime implementing reverse engineered drivers for Windows Mixed Reality, Oculus Rift, Rift S and PSVR2 headsets. Also, I developed Oculus CV1 drivers in OpenHMD.

The Marlin Firmware group is constantly working to make 3D printing better, faster, and more reliable. We love 3D printing and see a great future in this technology. You can help out. Bring your skills, become a sponsor, and tell a friend!

Support Alex-D’s open source work

The Carpentries is a nonprofit project operating globally to bring individuals the skills they need to transform data into knowledge. We develop and maintain lessons in foundational computation and data science skills, and offer pedagogical training.

My main goal, as a programmer, is to make things simpler and easier to understand for beginner users, so that they write better code, faster.

EDRLab is a non-profit organization dedicated to open source software and open standards for the publishing sector, worldwide. It is the home for Thorium Reader and LCP, and a major contributor to the Readium project.

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Co-founder and CEO at @tildeio, EmberConf and RailsConf Organizer, @emberjs Core Team Member, @jquery Core Team alum, and all around technophile.

Chris-san works tirelessly on open source projects to provide hot food and clean hay for Raphtalia-chan to sleep on.Help Chris-san on his journey to raise Raphtalia-chan and craft the open source tools all developers crave!

Support nbadal's Open Source work!

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Battlesnake is a multiplayer programming game where your code is the controller!

Zulip is a powerful, open source group chat application that combines the immediacy of real-time chat with the productivity benefits of threaded conversations.

Support the development of Cachet 3.x, the open-source, self-hosted status page system 🚦

I maintain simple-acme, a popular cross platform ACME client (and previously worked on its predecesor win-acme for 6+ years).

Support julialongtin’s Free Software efforts

Support lewis6991's open source work related to Neovim.

Support MobiFlight's Open Source work

Dj-Stripe makes integrating Stripe into Django a breeze. Your support makes it even easier!

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