Highlight, pin, measure, and edit any element on any page — without opening DevTools.
Each tool is a focused instrument — no menus to dig through, no panels that get in the way.
Hover to highlight any element, click to pin it. Shows tag, class, font, color, and background. Copy CSS in one click.
Hover any element to see its font family, size, and weight — without opening DevTools.
Find elements by CSS selector or text content. Cycle through matches with Enter and Shift+Enter.
Drop full-screen guide lines. Select one, hover another — the gap between them shows automatically.
Toggle a 1px outline on every element to see the page's box structure at a glance.
Overlay a column grid or baseline grid on any page. Set columns, gutter, margin, and max-width — save configs for reuse.
Keyboard shortcut
Mac · toggle the inspector on any page without opening the popup.
Windows / Linux
Available on the Chrome Web Store — no ZIP, no developer mode, no setup. Click the button and it's ready.
Add to Chrome — it's freeClick Add to Chrome on the Web Store page and confirm the prompt.
Pin the extension from the Chrome toolbar puzzle-piece menu so it's always one click away.
Navigate to any page and click the Argus icon — the inspector toolbar opens immediately.