MemoryPlugin is a cross-platform AI memory service that helps people carry useful context between ChatGPT, Claude, Gemini, Cursor, and more than 21 other AI tools. Rather than repeatedly explaining projects, preferences, and decisions in each new conversation, users can build one memory that follows them across models and remains under their control.

The service captures information during AI chats, lets users highlight details to save, and organizes memories into separate work, personal, and project buckets. Its Smart Memory feature can merge duplicates, flag outdated facts for approval, and provide relevant context in each conversation. Users can also import and sync chat histories from six sources, search past conversations, and ask questions across memories, files, and archived chats, with answers linked to sources.

MemoryPlugin supports coding, writing, decision-making, and client work, and offers a Mac app for bringing Claude Code, Codex, and Cursor sessions along. The company says data is encrypted at rest, can be deleted anytime, and is never used to train models. A free seven-day trial is available.