MaiChat

Key Features

🌳

Hierarchical structure - Organize conversations like files in folders
Custom system messages - Define AI behavior per topic with tailored prompts
Topic-specific models - Set different temperature and token limits for each topic
Instant topic switching - Jump between conversations in milliseconds, no reloading delays
Flexible reassignment - Move any message to any topic anytime, reorganize on the fly
Never lose context - No more scattered chats across multiple apps

⌨️

Modal interface - Vim-inspired modes (Input/View/Command) keep keys contextual and conflict-free
Fluid navigation - j/k/g/G for browsing, u/d for message jumps, all without reaching for arrow keys
Minimal friction - Access any feature in 1-2 keystrokes, zero unnecessary clicks
One-click actions - Copy code blocks, formulas, or entire messages instantly
Mouse optional - Fully keyboard-driven, but mouse works when you want it

🔍

Multi-dimensional filters - By topic, model, date, rating, content, or any combination
CLI-like query language - Combine filters with AND/OR/NOT, use wildcards
Universal search - Query your entire conversation history across all topics in one view
Smart discovery - Star-rate and color-code messages to mark what matters
Instant results - See filtered view immediately, no page reloads
Reusable queries - Command history saves your frequent searches

🎯

Visual context boundary - See exactly what goes to the AI with clear indicators
Precise filtering - Include only relevant messages via simple queries before sending
Token budget control - Manage context size to fit model limits perfectly
Multi-model comparison - Switch models to see different context calculations
Flexible inclusion - Adjust what the AI sees without editing or deleting messages
No surprises - Always know what context you're working with

Press Ctrl+K and add your OpenAI, Anthropic, Google, or xAI keys. Stored locally in your browser only.

You'll land in Input Mode. Type your message and press Enter to send.

Browse your conversation history with vim-style keys. Press g/G to jump to first/last.

Press Ctrl+D and type queries like t'work' or r30 s>=2 to filter your history.

Bring Your Own Keys (BYOK) - Use your own API keys from OpenAI, Anthropic, Google, or xAI
100% Local Storage - All conversations stored in your browser (IndexedDB), never sent to any server
Your keys, your control - API keys stored in localStorage, sent only to the providers you choose
No backend - Pure client-side JavaScript; we do not collect or store your conversations
Privacy-friendly analytics - We use Vercel Web Analytics on the landing pages (index/tutorial) to measure visits. It is lightweight, cookie‑less, and does not collect personal data.
Open source - MIT licensed, audit the code yourself on GitHub