Generate personalized cold email opening lines from LinkedIn profiles and company websites in seconds. Powered by AI.
Generate 3 personalized openers in under 5 seconds. No more staring at a blank email.
Pulls from LinkedIn profiles, company websites, recent activity, and more for relevant openers.
Get Professional, Casual, and Bold options. Pick the one that matches your style.
Your data never touches our servers. Everything runs locally in your browser.
No subscriptions. Pay once, use forever. Simple and fair.
Using Anthropic's Claude for high-quality, natural-sounding openers.
No subscriptions. No hidden fees. Just results.
Simple installation in 60 seconds
Buy on Gumroad, download cold-opener.zip from your receipt, and unzip to a folder.
Go to chrome://extensions, enable "Developer mode" (top right), click "Load unpacked", select the unzipped folder.
Click the extension → Settings → paste your OpenRouter API key (free signup, ~$0.001/use).
Yes, you'll need an OpenRouter API key. It's free to sign up and you only pay for what you use (about $0.001 per generation).
Absolutely. All processing happens in your browser. We don't have servers that store your data. Your API key stays on your device.
Cold Opener works best on LinkedIn profiles and company websites. We automatically detect the page type and extract relevant information.
We regularly update our scraping selectors to keep up with LinkedIn's changes. You'll receive an email with the updated extension file to reinstall.
Yes! If you're not satisfied within 30 days of purchase, we'll refund you. No questions asked.