Indoor Cat

Indoor Cat is a local-first AI copilot: a desktop chat app that runs a large language model entirely on your own computer. Nothing leaves the machine: your chats, your documents, your files and your pictures stay home. Ask it about your documents: attach a PDF and it reads the needed page locally, then tells you which page the answer came from. Keep your files in folders on your own disk; scanned pages are read by the vision model so they stay searchable too. Make and edit pictures: every picture keeps its recipe (prompt, seed, size, model) so you can edit or regenerate it later, with an optional one-click install of the picture engine. Every tool has its own switch: /see, /image, /edit and /search each show what they need, whether it is ready, and whether it asks before acting. Anything that would change something outside the app asks you first, in the conversation. Each tool ships with its test results: what it scored, on which model, on what date, and the tests are included so you can rerun them on your own hardware. Private web search and browsing come along too: it installs its own small search engine, opens real web pages, and only clicks or types when you allow it. Indoor Cat runs on Windows 10/11 (64-bit), macOS (Apple Silicon and Intel) and Linux (AppImage and .deb). No account, no cloud, no subscription: there is no pricing page and nothing to buy as of 2026-10-04. Honest caveats: this is an early-stage solo project (version 0.11.1, September 2026), and the author calls it slightly janky himself. The macOS and Linux builds are explicitly early and untested on clean machines. The first run downloads gigabytes (engine plus a model picked for your hardware), so nothing works offline until that finishes. It runs without a GPU but slowly; 8 GB or more of VRAM gets you a much larger model. Windows SmartScreen may warn while the new code-signing certificate builds reputation, and the macOS app is unsigned, so Gatekeeper needs a manual Open Anyway. The application itself is closed source: only the installers are public.