LGD Ventures
Save ChatGPT, Claude, Gemini, Grok and Perplexity conversations in one click, find any answer instantly, export to Markdown or PDF, and turn the best parts into notes and tasks.
Add to Chrome — free Get it for Edge See pricing
Chrome with Enhanced protection may say “not trusted by Enhanced Safe Browsing”. That’s normal for new developers, and it’s safe to choose Continue to install. Why?
ChatCairn · Library
Features
ChatCairn is a browser extension for Chrome and Edge, for people who use ChatGPT, Claude, Gemini, Grok and Perplexity. It saves chats into one local, searchable library, exports them to Markdown or PDF, and turns highlights into notes and tasks. Your chats stay in your browser: no account and no ChatCairn server.
Select any passage right in ChatGPT, Claude, Gemini, Grok or Perplexity and keep it as a note or a task with a project, due date and comment, without saving the whole conversation. It works in saved chats too. Filter by Overdue, Today or Upcoming, and jump back to the source in one click. Tasks export in Obsidian Tasks syntax.
Save the open conversation from ChatGPT, Claude, Gemini, Grok or Perplexity: your prompts and the answers, with code, tables and headings intact.
Full-text search across every chat you saved, on every platform, plus a home view of what you saved lately.
Markdown with front-matter for Obsidian and Notion, clean paginated PDFs, or a ZIP of your whole library. ChatCairn vs ChatGPT Exporter and Superpower.
Everything stays in your browser: no account, no ChatCairn servers; the extension has no analytics. One-click backup and merge-restore keep it safe. GPT Rescue also saves the Custom GPTs and Gems you created, free. How to export Custom GPTs and Gems with GPT Rescue.
How it works
01
On chatgpt.com, claude.ai, gemini.google.com, grok.com or www.perplexity.ai.
02
From the ChatCairn button in your toolbar. Saving again updates it in place.
03
Turn any passage into a note or task, with a project and due date, without saving the whole conversation.
04
Search the library, export Markdown or PDF, and tick tasks off.
Pricing
Start free. Upgrade when ChatCairn becomes part of your workflow. Prices as of Oct 2026.
$0forever
Add to Chrome — freeGet it for Edge
New-developer warning in Chrome? Continue to install is safe. Why?
$4.99/ monthor $69 once
Prices in USD as of Oct 2026. Cancel monthly anytime; lifetime is a one-time payment.
Secure checkout by Lemon Squeezy (merchant of record), prices in USD, 14-day refund on request, and your license key arrives by email.
Also: LGD Pro Pack: ChatCairn Pro, MeetCrate Pro and BackTrail Pro, one-time US$79, one key unlocks all three.
Install ChatCairn, a browser extension for Chrome and Edge. Open a chat on chatgpt.com and click Save in the toolbar. That conversation goes into a private library on your device. Free covers 30 saved chats across ChatGPT, Claude, Gemini, Grok and Perplexity.
Save the Claude chats you want to keep with ChatCairn, then use full-text search in the library. Search covers every chat you saved, across Claude and your other platforms. Free includes search for up to 30 chats. Install for desktop Chrome or Edge from the store links.
Install ChatCairn for Chrome or Edge, open a Gemini chat and click Save. In the library, export it as Markdown with YAML front-matter for Obsidian or Notion, or as a clean paginated PDF. Your files stay on your device. Free includes Markdown and PDF; Pro adds bulk ZIP and can remove the export footer. How to export a Gemini or Grok chat to PDF.
Install ChatCairn for Chrome or Edge, open a ChatGPT chat and click Save. In the ChatCairn library, export it as Markdown with YAML front-matter for Obsidian or Notion. Your data stays on your device.
ChatCairn saves the open Perplexity thread (questions, answers and citation links) after you grant optional site access in the extension. Export Markdown, PDF or a JSON backup anytime from your local library. Nothing is sent to ChatCairn servers. Free covers 30 saved chats across ChatGPT, Claude, Gemini, Grok and Perplexity.
Yes for the copy ChatCairn keeps: chats live only in your browser (IndexedDB and extension storage). ChatCairn has no servers that receive your conversations, and the extension has no analytics. You choose what to save and what to export as files on your device.
See the privacy policy.
ChatCairn does not ask for an account. Chats you have already saved stay in this browser, so you can open, search and export that library without signing in to ChatCairn. Saving a new chat still needs the assistant’s site open in desktop Chrome or Edge. There is no automatic or cloud backup.
Yes. ChatCairn is a browser extension for desktop Google Chrome and Microsoft Edge. Install from the Chrome Web Store or Microsoft Edge Add-ons using the links below. Mobile browsers do not support extensions like this, so save and export work on desktop Chrome or Edge only.
ChatCairn Pro is $4.99 per month, cancel anytime, or $69 once for lifetime (USD, as of Oct 2026). Free covers 30 saved chats for new installs (existing Free users who already had the older limit keep 50). Pro lets you save past that free chat limit, keep more than 10 notes and tasks, bulk ZIP export your library, and remove the export footer. One key activates up to 3 browsers.
ChatCairn does not delete chats on ChatGPT or any AI site. It saves the chats you choose into a local library so you can keep, search and export them. To remove chats from ChatGPT itself, use ChatGPT's own delete controls. In ChatCairn you only manage the copies you saved.
With Enhanced protection on, Chrome shows “Proceed with caution” for extensions from developers it doesn’t know yet. Google says new developers generally take a few months to become trusted. ChatCairn is reviewed and published on the Chrome Web Store and Edge Add-ons, and your chats stay on your device, so it’s safe to choose Continue to install.
When you click Save, it reads that one chat from the page. On ChatGPT and Claude it may ask the site itself for the same conversation using your existing login, read-only. Nothing is sent anywhere else.
In your Lemon Squeezy receipt email (subject “Your ChatCairn Pro … receipt”) and in My Orders at app.lemonsqueezy.com. Paste it in ChatCairn → Activate license.
Everything you saved stays available to read, search and export. Upgrade to Pro to keep saving the chats you choose.
Yes. GPT Rescue (free on every plan) exports the Custom GPTs and Gems you created into files you own. How to export your Custom GPTs and Gems.
Yes, within 14 days of purchase. Just reply to your receipt or email lgdventures.hq@gmail.com.
Contact
AI sites change often. Tell us and we usually ship a fix within days.