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of open source to your chips
The FOSSi Foundation is the custodian of the Free and Open Source Silicon movement.
What is Free and Open Source Silicon?Unlock the full potential: be a contributor
Open source is so much more than free of cost: it gives everybody, including you, the ability to shape the future of a project. Unlock the full benefits of open source today and become a contributor! Participate in discussions, report bugs, share your improvements, or even start a new free and open source silicon project!
Get involved in open siliconChip design is hard. Using open source isn't
The FOSSi Foundation is here to enable everyone to collaborate, innovate, and enjoy the benefits of open source chip design. Get to know like-minded developers at conferences like ORConf. Read about what's happening in our world in our newsletter El Correo Libre. And reach out to us if you feel confused. We're here to help.
Explore how the FOSSi Foundation helpsLatest FOSSi Foundation News

El Correo Libre Issue 89
It has happened folks, another ORConf is behind us and we're all safely home thinking about yet another brilliant installment of Europe's premiere open source silicon design conference. On behalf of the FOSSi Foundation I'd like to thank all who attended, spoke, sponsored, donated and hosted for your involvement with the event – you helped make it run flawlessly under the baking Valencian sun.

Looking back at ORConf 2025
It has happened folks, another ORConf is behind us and we're all
safely home thinking about yet another brilliant installment of
Europe's premiere open source silicon design conference. On behalf of
the FOSSi Foundation I'd like to thank all who attended, spoke,
sponsored, donated and hosted for your involvement with the event – you helped make it run flawlessly under the baking Valencian sun.

El Correo Libre Issue 88
Today, after years of work, and major turbulence from the shuttering of Efabless Corporation, I am delighted to finally announce the release of LibreLane, the successor to OpenLane — a ground-up reimagining which implements OpenLane-compatible flows by providing an infrastructure with which flows can freely be created, customised, and distributed.