Threadline — Search & Save Your AI Chats

Threadline adds a single search bar across ChatGPT, Claude, Gemini and Perplexity. If you work across more than one AI tool, your conversations end up split between four separate histories with no way to search them together. Threadline indexes them as you browse, so any conversation can be found from one place. Search Type a few characters to search every conversation Threadline has indexed, along with the full text of anything you have saved. Press Enter to open a result. When the conversation is already open in another tab, Threadline switches to that tab instead of opening a duplicate. Saving answers Hover any AI reply and press Save. Threadline keeps the question, the answer, the source link and the tool it came from together, so a saved answer still makes sense months later. Tags, comparison and export Add tags to saved answers and filter by them. Open any two saved answers side by side to see how different tools handled the same question. Export a filtered set to Markdown whenever you need it. Keyboard and appearance Cmd+K or Ctrl+K opens search. Arrow keys move through results and Enter opens the selection. Light and dark themes are both included. Privacy Everything Threadline stores stays on your machine. There is no account to create and no server to send anything to, and the extension collects no analytics. Threadline writes conversation titles and the answers you save to your browser's local storage, where they remain until you remove them. Uninstalling the extension deletes all of it. Threadline requests local storage and access to the four supported sites. It cannot read your other tabs, your browsing history, or any other site you visit. Threadline is not affiliated with OpenAI, Anthropic, Google or Perplexity AI.