Memdex

Memdex is a browser extension designed to automatically capture and store conversations users have with major AI chat platforms, including ChatGPT, Claude, and Gemini. Its primary function is to build a persistent, searchable local memory of every interaction, allowing users to retrieve and reuse context from past chats without manually copying or bookmarking. The tool operates entirely on the user’s local storage, meaning no data is sent to external servers, which addresses privacy concerns for sensitive or proprietary information. When users engage with AI assistants, Memdex silently records the entire dialogue, including prompts, responses, and any code or text generated. Over time, this creates a personal knowledge base that can be queried. For example, a developer working on multiple tasks—such as refactoring a React component, debugging a memory leak in a Node.js application, or writing a marketing strategy—can simply search their past conversations to find the exact solution or approach previously discussed. The extension supports complex queries, allowing users to filter by AI platform, date, or keywords. Memdex is particularly useful for professionals who frequently switch between different AI tools. A data engineer comparing Redis and Memcached can retrieve the detailed comparison from a previous chat with Claude, while a machine learning researcher can revisit a breakdown of transformer architectures from an earlier session with ChatGPT. The tool also aids in collaborative workflows: a team member can quickly locate the summary of standup notes or the SQL query generated for a specific database schema design. Beyond retrieval, Memdex enables reuse of context. Instead of asking an AI to repeat or re-explain a concept, users can reference the original conversat