Code at the speed of thought

Flux is a high-performance, multiplayer code editor from the creators of Atom and Tree-sitter. It's also open source.

Engineered for Performance

Flux is built from the ground up to be fast. It uses all your CPU cores to stay responsive, even in massive codebases.

GPU-accelerated UI

Flux leverages your GPU to render the UI, ensuring consistently smooth 120fps scrolling and typing.

Multiplayer coding

Code with your team in real-time. Share your workspace, follow each other's cursors, and communicate without leaving the editor.

Language-aware

Powered by Tree-sitter, Flux understands your code's structure, providing precise syntax highlighting and intelligent navigation.

Loved by developers

See what the community is saying about the Flux experience.

"Flux is the first editor that actually feels like an extension of my brain. The performance is just unreal compared to Electron-based editors."

JD
Jane Doe
Senior Engineer

"The multiplayer feature is a game-changer. We do all our pair programming in Flux now, and it's completely seamless."

AS
Alex Smith
Tech Lead

Ready to code faster?

Download Flux for free

Available for macOS. Linux and Windows coming soon.