Memdex

Memdex is an AI search tool. Memdex automatically saves your conversations across ChatGPT, Claude and Gemini, then lets you search past chats and reuse their context. Storage is described as fully local, making it a cross-assistant memory archive rather than another chatbot.

Memdex is a memory layer for people who use more than one AI assistant. It automatically saves conversations from ChatGPT, Claude and Gemini, then lets you search and reuse the context you built up in past sessions. The pitch is straightforward: instead of scrolling back through old threads or re-explaining your project from scratch, you retrieve the earlier exchange and carry it forward. The tool is aimed at knowledge workers, developers and writers whose work spans a few assistants at once. A coding question answered in one chatbot, a draft reviewed in another and a research thread in a third all end up scattered. Memdex collects that scattered history into a single searchable record, which matters most when a decision, a spec or a snippet was settled weeks ago and nobody wants to reconstruct it. In practice the workflow is passive. You keep chatting in the tools you already use, and Memdex saves the conversations in the background. When you need something, you search rather than browse. Privacy is the stated design choice: the company says storage is 100 percent local, so the archive of your prompts and outputs stays on your own machine rather than on a vendor server. That local approach is the main differentiator against cloud note-taking tools and against assistant-native memory features, which generally lock history to one provider. Where it fits: personal note apps and second-brain tools require manual capture, and each chatbot's built in memory works only inside that one product. Memdex sits above them as a cross-assistant archive, but it is a memory and retrieval tool, not a chat client, so it complements rather than replaces the assistants themselves.