The Mempool Open Source Project develops [mempool.space](https://mempool.space/), a self-hostable explorer and visualizer for the Bitcoin community, focusing on the emerging transaction fee market to help our transition into a multi-layer ecosystem.

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

Support the development and operation of the Swift Package Index by sponsoring it. With your help, or your company’s, we can continue to build an essential resource for the Swift community.

Author of Vuls (https://github.com/future-architect/vuls) / Speaker at Black Hat Asia 2020 Arsenal@Singapore / HITCON 2017 CMT@Taiwan / Open Source Summit North America 2017@LA / Apricot 2018@Nepal / security camp 2017, 2018

Support fjall-rs's open source work

I create open source CNC machines and firmware.

I'm passionate about 🎬 live video streaming, 🛠 HTTP & REST APIs and developer tooling like 📦 SDKs & 🖥 CLIs. I love open source and try hard to contribute useful software back into the world. Please consider sponsoring my work!

Mergify is an open-source project automating GitHub workflows. We think development processes should be automated as much as possible to ease onboarding, foster creativity, and remove friction.

Support random nerd's increasing alcohol consum while working on various open source projects

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.

Help us improve Flipper

👋 Hi! My name is Fabrizio and I'm part of the PHP open source world since 2003! I'be been active in the Magento world, then I've maintained OpenMage for ~3.5 years and now I focus all my energy on MahoCommerce and AI-related projects with LLPhant.

Support webhdx's open source work

Passionate about giving back to the community that has enriched my journey. With your support, I'm committed to building impactful and useful projects that empower and enhance the lives of others.

I make homebrew for webOS and other interesting stuff

Support Dense Analysis' work to further IT education and training and build great FOSS.

Software engineer with a fervor for open-source. Creator & caretaker of Elsa Workflows, simplifying workflow execution in any .NET app.

Free time developer, script lover. Mainly working on free, small and no-ads Android apps.

Support sidorares’s open source work

Street Side Software helps developers around the world to write better code. Its VS Code spell checker has been downloaded over 11 million times, The `cspell` CLI tool is used in CI/CD pipelines to keep code free of spelling issues.

I am Chris Titus and do several git repositories that made life a bit easier for those in tech.

Support Toby's open-source work

Hi! My name is Jeffrey Lanters, born and living in the Netherlands. I’m a developer and designer in a broad field of games and apps, love to teach about game development, and help others by contributing in the world of open source software.

I work on various open-source projects as part of my work at Hugging Face. Most of the time those are short-lived demos, but I like to make things personal so I spend my free time developing the best ideas into more complex open-source apps 🤗

Help shape the future of UI as we dive into spatial computing with our open source, collaborative productivity environment in VR.