OnyxEarly access
Download Onyx
Signed builds for every platform are being prepared. This page lists each installer as soon as it is published.
macOS
Apple silicon.dmg
macOS 12 or later, M1 or newer
Coming soonIntel.dmg
macOS 12 or later, Intel Core
Coming soonWindows
64-bit.msi
Windows 10 or 11
Coming soonLinux
Debian and Ubuntu.deb
Ubuntu 24.04 baseline
Coming soonAppImage.AppImage
x86-64 with glibc 2.39 or newer
Coming soonGetting started
Three steps to your first thread.
01
Install
Run the installer for your platform. On macOS, drag Onyx into Applications.
02
Connect an agent
Sign in to Claude Code, Codex or another supported agent with your existing account.
03
Open a project
Point Onyx at a folder. Chat, code and checkpoints work from the first message.