Chrome
From the Chrome Web Store. Works in every Chromium browser.
Folders inside folders, right in the claude.ai sidebar and project page. Sort months of conversations in a minute. Nothing leaves your browser.
claude.ai lists a project's conversations in one flat column. Nest adds folders and sub-folders inside each project, so last March's research thread is three clicks away instead of a long scroll.
Every claude.ai project keeps its own tree, shown in the sidebar and on the project page.
Start a chat from a folder. It is filed there as soon as you send the first message.
Drop a conversation onto a folder, drag folders into each other, or file several chats at once from the “Add conversations” panel. Try it here, with a mouse or a finger.
A name, an emoji and a color for every folder, so you tell “Legal” from “Launch” before you read a word.
Hide or dim conversations you've already filed, check what's stored, and export everything to a JSON file you can restore later. The menu only wakes up on claude.ai tabs.
No account, no server, no analytics. Everything is stored locally by your browser, and the extension asks for the smallest set of permissions it can.
The extension never calls out. Not to us, not to anyone.
Install it and it works. Nothing to sign up for.
Local storage and access to claude.ai. That's the full list.
Every line is on GitHub, ready to read and audit.
Free, open source, installed in seconds. Your sidebar will thank you on Monday morning.
Pick your browser. The store version updates itself; the manual build is there if you prefer to install from source.
From the Chrome Web Store. Works in every Chromium browser.
From Firefox Add-ons. Desktop Firefox 115 and later.
Download the zip from the latest GitHub release, then load it yourself.
chrome://extensions, turn on Developer mode, then “Load unpacked”.about:debugging and “Load Temporary Add-on”.