Product Information
Community and Support
Some Facts
External Resources

ChibiOS Homepage

ChibiOS Free Edition LogoWelcome to the ChibiOS project page. ChibiOS is a complete development environment for embedded applications including RTOS, an HAL, peripheral drivers, support files and tools.

ChibiOS also integrates external Open Source components in order to offer a complete solution for embedded devices.

The ChibiOS components are available under Open Source licenses, GPL3 or Apache 2.0, there are also several commercial licensing options.

Support our Project

If you like ChibiOS, please, consider supporting our project with a small donation.


All guides and articles of the old web site are still available on the technical wiki documentation page.

New Metrics page

Visit our new RT-NIL metrics page.

ChibiOS 20.3.0 stable

ChibiOS 20.3.0 “Erchie” has been released.

learn more

ChibiOS 19.1.3 stable

ChibiOS 19.1.3 “Maiori” has been released.

learn more

Migration to OSDN

ChibiOS project migrated to OSDN..

learn more

ChibiStudio Preview 20

ChibiStudio preview 20 has been released.

learn more

New partners page

Visit our new partners page.

ChibiOS/RT The Book

The Ultimate Guide preview, the book is freely available online. Everything about the RT kernel described in great detail.

learn more