ChatCairn · Office #57,390

What it is

Calls itself “browser extension”.

• Calls itself: browser extension

“ChatCairn is a browser extension for Chrome and Edge”

Where it puts itself

Rules out “no ChatCairn server” and “no account”.

• Says it will not: no ChatCairn server · no account

“…no account and no ChatCairn server”

What it costs

One-time purchase and monthly subscription. A free tier, free forever. Prices quoted: $0, $4.99 / month, $69 once.

• One-time: yes
• Monthly: yes
• Free plan: free forever
• Price: $0 · $4.99 / month · $69 once

“Free $0 forever All 4 platforms”

“Pro $4.99 / month or $69 once”

“$69 once”

How it runs

A browser extension. Runs locally and works offline. Distributed through the Chrome Web Store and Edge Add-ons. AI is a side feature. Built with GitHub Pages.

• Kind: extension
• Runs where: on the device, offline
• Distributed via: Chrome Web Store · Edge Add-ons
• AI role: a side feature
• Built with: GitHub Pages

“ChatCairn is a browser extension for Chrome and Edge”

“Your chats stay in your browser: no account and no ChatCairn server.”

What it works with

Integrates with ChatGPT, Claude, Gemini and 2 more. Plugin for Chrome and Edge.

• Integrates with: ChatGPT · Claude · Gemini · +2
• Plugin for: Chrome · Edge

“ChatCairn by LGD Ventures”

“ChatCairn is a browser extension for Chrome and Edge, for people who use ChatGPT, Claude, Gemini and Grok.”

What it offers as proof

Live, no waitlist. Try it without signing up. Publishes docs.

• Instant signup: yes
• Trial asks for: nothing

“Add to Chrome — free”

“Guides -> https://lgdventures.github.io/chatcairn/guides/”