RetroTerminal is an open-source, web-based chatbot that lets you talk with Google’s Gemini models through a retro terminal interface.
It’s built for people who appreciate the simplicity of old-school command-line tools but want the power of a modern AI. The entire experience runs in your browser, loads quickly, and is designed from the ground up to be lightweight and private.
Features
- Vintage Terminal Themes – Choose from classic amber, green, blue, and other CRT-style color schemes for authentic retro computing vibes
- File Upload Support – Upload images and documents directly for Gemini to analyze, supporting multiple file formats
- Custom AI Personas – Create personalized system prompts to tailor AI behavior for specific tasks or personalities
- Contextual Memory – Save and reload chat history to maintain conversation context across sessions
- Progressive Web App – Install locally for faster access and offline capabilities
- Keyboard-Optimized – Full keyboard navigation with shortcuts and typewriter-style animated text feedback
- Terminal Commands – Built-in command system for quick navigation and settings management
- Privacy-Focused – All data stays on your device with optional API key integration for better rate limits
How to Use It
1. Go to the RetroTerminal website. You can start a conversation immediately without any login.
2. Select from the available terminal themes using /themes command or the settings panel.
3. Type your questions directly into the terminal prompt just like any AI chatbot.
4. Use /settings to adjust temperature, Top K, Top P values, and select different Gemini models.
5. Input your Google Gemini API key through settings for better rate limits during high traffic.
6. Click the install prompt in your browser to add RetroTerminal as a desktop app.
7. Type /help to see all available terminal commands for navigation and customization. All available commands:
- /help or /commands: Shows a list of all available commands.
- /new or /newchat: Starts a new chat session.
- /settings: Opens the settings panel to configure the AI.
- /history: Opens the conversation history panel.
- /features or /info: Navigates to the features page.
- /zen: Toggles a distraction-free typing mode.
- /dark: Toggles a completely black background.
- /themes or /theme list: Lists all available terminal themes.
- /theme switch [name]: Switches to a specific theme (e.g.,
/theme switch amber). - /personas or /persona list: Lists all available AI personas.
- /persona switch [name]: Switches to a specific AI persona.
- /persona create [name] | [prompt]: Creates a new persona with a custom system prompt.
- /persona delete [name]: Deletes a custom persona.
- /memory: Toggles the memory feature on or off.
- /memory view: Displays the current persona’s stored memories.
- /memory clear: Clears all memories for the current persona.
- /memory summarize: Manually summarizes the current chat to create a memory.
Pros
- Unique Aesthetic Appeal – The terminal interface provides a refreshing break from generic web chat designs
- Privacy Control – Local storage means your conversations stay on your device
- Customization Options – Multiple themes and personas let you personalize the experience
- No Registration Required – Start using immediately without creating accounts
- Lightweight Performance – Built with vanilla JavaScript for fast loading and smooth operation
- PWA Installation – Works offline and loads faster when installed locally
- Developer-Friendly – Keyboard shortcuts and terminal commands appeal to technical users
Cons
- Limited AI Model Options – Only supports Google Gemini models, not other popular AI providers
- Learning Curve – Terminal interface may confuse users unfamiliar with command-line environments
- Mobile Experience – Terminal interfaces work better on desktop than mobile devices
- Rate Limiting – Free usage may slow down during peak times without personal API key
- Basic File Support – While it supports file uploads, features are limited compared to specialized AI tools
- No Team Features – Lacks collaboration tools or sharing capabilities for team environments
Related Resources
- Google AI Studio – Get your free Gemini API key for better rate limits and performance
FAQs
Q: Is RetroTerminal completely free to use?
A: Yes, RetroTerminal is free. It works without an API key, but for better performance and higher rate limits, you are encouraged to use your own free Google Gemini API key.
Q: How does RetroTerminal differ from the official Gemini website?
A: RetroTerminal offers a different user experience focused on speed, privacy, and customization. Unlike the official site, it provides a retro terminal UI, stores all your data locally, requires no Google sign-in, and allows for deep customization of AI personas and themes.
Q: How is my API key kept secure?
A: The tool stores your API key in your browser’s local storage with masking. The full key is only held temporarily in session storage for active use. All data remains on your device and is never shared.
Q: Can I really install it on my computer or phone?
A: Yes. RetroTerminal is a Progressive Web App (PWA). When you visit the site on a modern browser (like Chrome, Edge, or Safari), you should see an install icon in the address bar that lets you add it to your home screen or desktop.
Q: How do I delete my chat history?
A: Use the /history command to access your conversation history panel, where you can delete individual chats or clear all history. You can also disable memory features entirely in settings for maximum privacy.
