Cathode
Cathode is a macOS terminal emulator that recreates the look and feel of vintage CRT computer displays for command-line use.
What is Cathode?
Cathode is a terminal emulator for macOS designed for users who want a command-line environment with the visual style of classic CRT monitors. It lets you open terminal sessions while adding retro display effects such as phosphor glow, screen curvature, scan lines, flicker, and color tuning. The app is mainly used by Mac users who enjoy a stylized terminal experience for light shell work, demos, screenshots, or creative setups. It also includes customization options that let you adjust the display’s appearance to match different vintage computer looks. Cathode focuses on presentation and atmosphere rather than replacing a modern power-user terminal workflow.
Key features
- Open terminal sessions in a retro CRT-style interface
- Customize screen curvature, colors, and transparency
- Adjust visual effects such as glow, flicker, jitter, and scan lines
- Use full-screen mode for an immersive vintage terminal view
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Safety overview
Status: Safe
Cathode is a legitimate terminal app for macOS. Because it functions as a terminal emulator, commands run inside it can access files and system tools with the same permissions as your user account, which is normal for this type of app. Keep it if you use its retro terminal interface, and use the same care with shell commands that you would in any other terminal.
Recommendation: Keep Cathode if you use it for terminal sessions or enjoy its vintage display effects. If you no longer use it, you can remove it like other Mac apps without affecting macOS beyond losing this specific terminal app and its settings.
Common paths
/Applications/Cathode.app
Preference paths
~/Library/Preferences/com.secretgeometry.Cathode.plist
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