Stop stitching three extensions together.
One panel on claude.ai with folders, pins, full text search and Markdown export. Your chats stay in your browser, and Claude stays exactly as fast as it was.
In review at the Chrome Web Store. This button turns into the listing link the day it is approved.
- Free
- Unlimited pins, full search, single chat export, 3 folders
- Pro
- Unlimited folders and folder export. $6 a month, $49 a year, or $79 once. A licence key, not an account.

Four things, in one panel, on the page you are already on.
Folders
File a chat into a folder without leaving the page. A chat can sit in more than one, folders collapse when the list gets long, and the folder shows up next to the chat everywhere else.
3 folders on the free plan. Pro removes the cap.
Pins
Star the two or three chats you are in and out of all day. They get their own tab and stay at the top of it, on every plan.
Search
Type a word you remember and get the chat back, with the matching line and a count. Titles, messages and your own notes are all searched.
Mossle indexes a chat when you open it. It never crawls your history in the background and never calls an internal API.
Export
Save a chat as Markdown, ready to paste into your notes or commit to a repo. Notes you wrote come with it, so the file is the whole record.
Single chats export on every plan. Whole folders at once are part of Pro.
How it goes
The interactive demo needs a screen wide enough for the panel and a chat app side by side. Here is the same sequence in stills.
Open a chat, and it becomes searchable
Mossle reads the conversation you have open, and only that one. The dot beside the message box goes from a grey ring to a green disc when it is done.

File it, or star it
Add to folder puts the chat wherever you want it, and a chat can be in more than one folder. Pin keeps it at the top of its own tab.

Find it again, or take it with you
Search matches titles, messages and your own notes. Export writes the whole conversation out as Markdown.

Your chat data never leaves the browser.
There is no server to send it to.
This site works the same way: no cookies, no analytics, and no fonts or scripts fetched from anyone else.
Read the privacy policy- Stored on your machine
- Folders, pins, notes and the search index live in your browser's own storage. There is no account, no login and no server holding a copy of any of it.
- No telemetry
- No analytics, no usage pings and no error reporting, so there is nothing to opt out of.
- Indexed as you open
- A chat becomes searchable the moment you open it, and not before. Mossle never walks through your history in the background and never calls an internal API.
- One request in the whole product
- If you buy Pro and press Activate, the licence key you typed is checked with the payment provider. That is the only network call the extension can make.
One panel, and no account to make.
Install it, open claude.ai, and the leaf is in the bottom right corner.
In review at the Chrome Web Store. This button turns into the listing link the day it is approved.
Free covers unlimited pins, full search, single chat export and 3 folders. Pro adds unlimited folders and folder level export: $6 a month, $49 a year, or $79 once. It is a licence key, not an account.