Most Chrome accessibility extensions either dump raw WCAG codes at you (great for devs, useless for designers, PMs, and clients) or ask for full-URL access just to scan one page.
Royal Access does one thing. Open the popup on any webpage, get a 0–100 accessibility score with plain-English fix hints across 8 WCAG 2.1 AA categories: images, headings, color contrast, form labels, ARIA, landmarks, document structure, keyboard. activeTab permission only. No account. Free forever