Hi all, It has been great to see so much interest in contributing to Mojo! We wanted to take a moment to reiterate that we are currently only accepting outside contributions to the standard library and not to the compiler. Please see the quote below from the announcement blog post. Contributions The Mojo standard library has been accepting contributions since 2024, and we’re grateful for everyone that has helped advance the language. One learning (particularly in today’s era of AI coding) is that we need to be deliberate about how we handle contributions. As such, we aren’t ready to take contributions to the compiler and tooling. We aim to accept contributions to the compiler and tooling by the end of this year, and we’ll share more details when we can. To ask any questions about the Mojo compiler source as you read through it, or to share what you’re working on, please join our forum. Clone the source code and let us know what you’re building with the Mojo language. We’re excited to open Mojo up to the world and see how it grows!

Hey all, on behalf of the Mojo compiler team, I want to put it on record that we aim to start accepting contributions much sooner than “by the end of the year” :slight_smile: As soon as we have the necessary infrastructure in place, we will start gradually, fist welcoming bug fixes and small changes, and then build the muscle and processes for more deep collaboration and work with the community on more impactful projects. Stay tuned!

Hey everyone, we’re now taking compiler contributions as well. See here for details: [image] Mojo compiler is open for open source contributions Mojo Hey everyone, I’m happy to announce that we’re now accepting OSS contributions to the Mojo compiler and tools! We are starting slowly, with bug fixes accepted first, and we will gradually work towards taking more substantial contributions. Please go ahead and start opening the PRs! Here are some good first issues to get you all started. And here are the contributing guide and some helpful details. Looking forward to working together with all of you! – Mojo Compiler team

Open source compiler contributions

Mojo

denis (Denis Gurchenkov) September 16, 2026, 1:18am 4

Hey everyone, we’re now taking compiler contributions as well. See here for details:

Topic		Replies	Views
Mojo compiler is open for open source contributions Mojo	2	402	September 22, 2026
Mojo compiler is open for bug fixes and refactors Mojo	0	175	October 8, 2026
Updating our contribution process for the Mojo stdlib Mojo	3	522	May 15, 2026
Open-source device codegen Mojo	3	303	October 24, 2026
What's next for Mojo: near-term roadmap Official Announcements	3	1878	May 10, 2025

Open source compiler contributions

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