Microsoft Edge supports Chrome extensions — so most Chrome SEO extensions install directly without modification. Here's what works and how to install them.
Open Edge → go to edge://extensions → toggle on Allow extensions from other stores at the bottom of the page.
Go to chromewebstore.google.com in Edge. Search for any SEO extension as you would in Chrome.
The Chrome Web Store button says "Add to Chrome" but will install to Edge. Confirm the permissions prompt. The extension appears in Edge's toolbar.
Full on-page audit, redirect tracer, link checker. Works identically on Edge as on Chrome.
ReviewFull SERP overlay free. Install from Chrome Web Store on Edge — works identically.
ReviewSearch volumes in Bing and Google results. Install from Chrome Web Store on Edge.
ReviewEdge also has its own extension store at microsoftedge.microsoft.com/addons — some SEO extensions are available there too, though the Chrome Web Store has more options and fresher updates.