Show HN: A Chrome extension to navigate long Claude/ChatGPT threads with ease
piyushgupta53 Wednesday, December 17, 2025
I built this because I kept losing track of important parts in my long conversations with Claude/ChatGPT.
Threadline adds a sidebar that shows all your messages as a clickable table of contents. Click any entry, jump straight there. Hover to preview the full message before navigating.
Works on both Claude and ChatGPT. Auto-updates as you chat, matches dark/light themes, and stays out of your way when you don't need it.
Summary
Threadline is a Chrome extension that organizes your open tabs and windows, allowing you to quickly access and navigate your browsing history. It provides a visual overview of your open tabs and helps you keep your workspace organized and efficient.
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Summary
chromewebstore.google.com