Overlayer (Devoteam Knowledge Services)

Overlayer began as a lightweight Google Workspace companion for leveraging internal company knowledge with AI, and the same extension is now distributed by the consultancy Devoteam under the name Devoteam Knowledge Services. Because the Chrome Web Store entry, extension ID and publisher record are unchanged, anyone who installed Overlayer keeps getting updates under the new branding. The extension is aimed at teams that already live inside Google Workspace and want to avoid bolting on yet another search or wiki tool.

The product folds several knowledge-work tasks into a single side panel: AI-powered search across the company's drives and connected sources, automatic tagging of documents as they are created, identification of in-house subject-matter experts, and an approval workflow so that sensitive or reviewed material follows the right process. It is installed with no setup, requires little configuration, and is designed specifically for Google Workspace rather than generic web pages.

The extension reports 8,000 users and a perfect 5.0 rating from a small handful of reviews, with version 4.7.4 as the most recent update. It is published by Devoteam, a European technology consultancy headquartered in Levallois-Perret, France, which gives it the backing of an established services organization rather than an anonymous solo developer.