Installing extensions from the marketplace is now smooth and reliable, chat streams its replies smoothly, and importing your setup from VS Code shows exactly which extensions you will need to add by hand.
Downloading
If you're installing manually:
macOS
- Apple Silicon Mac (M1 or newer): download
OnyxCode-darwin-arm64.dmg(smaller, native). - Intel Mac, or unsure: download
OnyxCode-darwin-universal.dmg(runs on both).
Open the .dmg and drag Onyx Code to /Applications/. Both macOS downloads are signed and notarized by Apple, so they pass Gatekeeper and open without security warnings.
Linux (x64)
- Debian / Ubuntu: download
OnyxCode-linux-x64.deband install it withsudo apt install ./OnyxCode-linux-x64.deb. - Other distributions: download
OnyxCode-linux-x64.AppImage, make it executable (chmod +x), and run it. On Ubuntu 24.04 (which lacks libfuse2) run it with--appimage-extract-and-run.
Windows (x64)
Install with winget: winget install OnyxCode (recommended). It runs through Microsoft's App Installer (a trusted Microsoft Store app) with a package listing reviewed in Microsoft's community winget repository, so it verifies the download and gives a smoother first-run experience. The same installer (OnyxCode-win32-x64-winget.exe) is also attached here for manual download; note it is not code-signed yet either way, so Windows may still show an "Unknown publisher" warning. A code-signed installer is planned for a later release.
The *-autoupdate.zip, darwin-*.json, linux-x64.json and win32-x64.json files are plumbing for Onyx Code's
built-in auto-updater. They are not designed for manual install and will give
you a worse first-run experience than the download above.
What's New
Changed
- Clearer extension import from VS Code. When you bring your settings and extensions over from VS Code, Onyx Code now lists by name any extensions that aren't available on Open VSX, and shows how to add each one by hand with "Install from VSIX".
- Smoother chat streaming. Replies render cleanly as they stream in, with stable syntax highlighting in code blocks from the first line to the last.
Fixed
- Installing extensions from the marketplace. Adding an extension from the marketplace now completes smoothly.
System Requirements
- macOS 11 (Big Sur) or later.
- Apple Silicon (M1 or newer) or an Intel Mac. The Universal download runs natively on both.
Installing
- Download the
.dmgthat matches your Mac (see "Downloading" above). - Open it and drag Onyx Code into your Applications folder.
- Launch it from Applications. Because the build is notarized, it opens without a security prompt.
Verification
This build is signed and notarized by Apple. macOS verifies it on first launch, so it opens as an app from an identified developer without security warnings.