FeedLens is a lightweight RSS, Atom, XML, and OPML preview extension for Chrome and Edge. It turns raw feed pages into a clean reader-style view, so you can quickly inspect a feed before subscribing to it in your preferred RSS reader. FeedLens supports common RSS, Atom, RDF, and OPML formats, shows feed metadata, provides one-click copy actions, and keeps raw XML access available when you need to inspect the original source. FeedLens is designed for previewing feeds, not managing subscriptions. It does not sync, track unread counts, send notifications, or require an account.