Memory Sync is a Chrome extension designed to sync AI memory across various platforms including ChatGPT, Claude, Gemini, Grok, Kimi, Mistral, and Copilot. It allows users to pull AI memory out of closed platforms and transform it into a long-term asset that they can control. With Memory Sync, you can maintain a single Memory.md file that serves as a portable source of truth, eliminating the need to reteach each AI assistant from scratch. This tool helps keep your preferences, background, project context, and working style consistent across multiple AI assistants, facilitating a real multi-assistant workflow. Memory Sync offers free syncs each month to demonstrate its portability model, ensuring that your long-term memory is consolidated in one file. The extension is built to provide clarity and execution without unnecessary fluff.