Onyx Code icon
Onyx Code icon

Onyx Code

Onyx Code is a desktop code editor built on VS Code OSS that runs AI models locally on your own machine. It ships with a bundled llama.cpp inference engine and a curated chat model, so autocomplete, chat and agent work run offline, with no account, no API key, and no code...

The editor, with the local model panel

Cost / License

  • Freemium (Pay once)
  • Proprietary

Application type

Platforms

  • Windows  Installed with the winget package manager: winget install OnyxCode
  • Mac  Apple Silicon uses Metal to accelerate local models. On Intel Macs, local models run on CPU.
  • Linux  Provided as .deb and AppImage builds.
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Features

Properties

  1.  Distraction-free
  2.  Support for Themes
  3.  Privacy focused
  4.  AI-Powered

Features

  1.  Syntax Highlighting
  2.  Works Offline
  3.  Command line interface
  4.  Code Formatting
  5.  No registration required
  6.  Dark Mode
  7.  File Versioning
  8.  Ad-free
  9.  Support for MarkDown
  10.  No Tracking
  11. Git icon  Git Support
  12.  Extensible by Plugins/Extensions
  13.  Full-Text Search
  14.  Autocompletion
  15.  VSCode
  16.  Code Completion
  17.  Local AI
  18.  Offline

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Onyx Code information

Onyx Code was added to AlternativeTo by Ehsan ZB on and this page was last updated .

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What is Onyx Code?

Onyx Code is a desktop code editor built on VS Code OSS that runs AI models locally on your own machine. It ships with a bundled llama.cpp inference engine and a curated chat model, so autocomplete, chat and agent work run offline, with no account, no API key, and no code leaving the computer.

The free tier is the complete editor: Open VSX extension support, inline autocomplete, next-edit prediction, codebase indexing and chat over your own project, plus the full privacy toolkit. That toolkit includes an air-gap mode, a per-workspace kill switch, a .onyxnoai ignore file, an activity log with audit PDF export, and a prompt sanitizer on every send. You can also bring your own cloud API keys if you want to use hosted models.

The Pro licence is a one-time payment covering three machines. It adds unlimited chat models, the Plan, Ask, Edit-auto and Auto agent modes, agents sandboxed in an isolated git worktree, unlimited MCP servers, project memory that persists across chat sessions, and side-by-side comparison of two to five models on the same prompt.

Onyx Code is aimed at developers who cannot or would rather not send source code to a third-party service: regulated industries, air-gapped environments, and anyone who wants their code to stay on their own disk. Available for macOS, Windows and Linux.