OhNine v1.0.11

Choose your platform. Download. Install. Done.

macOS (Apple Silicon)
M1, M2, M3, M4 Macs
108 MB
macOS (Intel)
Older Macs (pre-2020)
113 MB
Windows
Windows 10+ (64-bit)
95 MB
Linux (AppImage)
Works on most distros
114 MB

Install instructions

macOS

  1. Open the .dmg and drag OhNine into Applications
  2. Open Terminal and run:
xattr -cr /Applications/OhNine.app
  1. Open OhNine from Applications. Click the menu bar icon, sign in with Claude.

The xattr command removes the macOS quarantine flag. This is required for all indie apps without a paid Apple Developer certificate. You only need to do this once.

Windows

  1. Run the .exe installer
  2. If SmartScreen says "Windows protected your PC", click More info then Run anyway
  3. Find OhNine in your system tray, sign in with Claude.

Linux

  1. AppImage: chmod +x OhNine-1.0.11.AppImage && ./OhNine-1.0.11.AppImage
  2. Find OhNine in your system tray, sign in with Claude.

Multiple workspaces?

If you have both a Team and Personal plan on the same email, OhNine tracks whichever workspace you select during sign-in. To switch later: right-click the tray icon > Switch Workspace.

Free and open source. MIT License. Source on GitHub