Foundational software for designing beautiful user experiences. Use it on your favorite distro!
Features for all
Best for users, best for your product
Impress users with the tools you build for them. COSMIC offers better performance, efficiency, and in-depth personalization to empower a wide variety of use cases.
Create custom UX
Quickly code your project with modular elements created with customization in mind. Panels, applets, theming, tiling, launcher, app library, keyboard shortcuts and dynamic or pinned workspaces are all made flexible to bend to your users needs.
Theming on brand
COSMIC's custom theming system makes it easy to create a default theme with your organization's color palette without compromising on readability.
Applications made easy
COSMIC empowers frictionless development by being approachable, easy to maintain, and modular. Use the same language and toolkit to build apps and applets, with helpful templates provided. Even shell components and the compositor use the same toolkit. Learn once and use your knowledge anywhere in the desktop.
Protected against crashing
COSMIC is built in Rust, a memory-safe programming language that excels in stability and security.
Keep your data secure
As a Wayland-native desktop environment built in Rust, COSMIC eliminates vulnerabilities like keylogging and input spoofing, and benefits from Rust's memory safety guarantees that dramatically reduce common attack surfaces, like buffer overflows and use-after-free bugs.
COSMIC Community
Join a community of makers helping to keep COSMIC an intuitive and empowering tool for all.
Making Waves
In the Media
Destination Linux talks COSMIC
Michael, Jill, and Ryan chat about what goes into building a desktop from scratch.
Watch
Open Source Summit: COSMIC DE
The First Modular, Composable Desktop Environment - Carl Richell & Jeremy Soller
Watch
Getting Started with COSMIC
A First Look at System76’s Desktop Environment
Read More
Proud Advocates for Open Source
About System76
Built for User Freedom
COSMIC is designed and engineered in-house by System76, a US computer manufacturer. From our factory in Colorado, we craft premium Linux computers, Pop!_OS, and airtight firmware—with the aim of empowering your ambitions (or your distro!).
Visions enacted, users empowered
COSMIC is free to download, and freeing to use. Get started with Pop!_OS LTS 24.04 Beta and take to the stars.
Pop!_Chat
GitHub
