UX Check is a Chrome-only extension that opens Nielsen's ten usability heuristics in a side panel next to whatever page you're evaluating.
Click through a live site, flag elements against each heuristic, attach notes and an auto-captured screenshot, then export the whole thing as a Word doc: it turns an ad hoc "this feels off" scroll-through into a structured, shareable heuristic evaluation without a separate annotation tool.
Pull it out for a heuristic evaluation of a competitor's product, or to audit your own team's shipped flow before a redesign kickoff when you need documented evidence, not merely a gut-feel Slack message.
The listing hasn't been updated since 2019 and sits around a 3.3-star rating, so test it on your target site first: older heuristic-evaluation extensions like this are prone to breaking on modern JS-heavy layouts.
Run a heuristic evaluation on your website directly in Chrome.
