HelloDexter (formerly Cerebria)

HelloDexter is a Chrome extension built for sales teams, recruiters and founders who work out of LinkedIn all day. Instead of juggling separate prospecting tabs, it layers contact details directly on top of the LinkedIn interface: when you open a profile you can surface a verified email address, a phone number and social handles, then save the person into your own lead list in the HelloDexter dashboard.

The extension also handles volume work. With a single click it can scrape multiple profiles from a search results or people page and push them into your pipeline, which is useful when you are building a list of a hundred prospects rather than five. An AI writing layer then generates personalized opening messages and follow-ups based on the profile context, so outreach goes out while you are still inside the same tab.

The tool was previously distributed under the name Cerebria, and the Chrome Web Store listing now serves the HelloDexter brand. It stores personally identifiable and authentication information, which the developer states is not sold to third parties. Because it is an independent third-party extension rather than an official LinkedIn product, you should check current data policies and account-safety guidance before scaling any automation.