Sanctum

A private AI assistant that enables users to run full-featured open-source LLMs on their devices. It currently runs on Mac and Windows 10+, with Linux support planned soon and mobile versions in development. All processing happens locally with AES-256 encryption; your data, prompts, and files never leave your device. Once models download you can use chat, document features, and everything else fully offline. The built-in AI matching engine shows compatible GGUF models from Hugging Face and suggests options based on your hardware. Upload PDFs or DOCX files to ask questions, request summaries, or discuss content privately. The app is free to download and use with open-source models; no subscription is required.