Frontend Inspector, from the Frontend Inspector team, is a Chrome extension for quick visual audits and rapid style extraction. The tool shows CSS properties and exact dimensions when you hover over any element, and includes a color picker, typography readouts, and one-click CSS copy for rapid reuse. Its minimalist interface stays dormant until activated via the toolbar icon, making it suited to frontend developers, UI designers, and analysts who need on-page style data without opening full developer tools.

Built for quick visual audits rather than full developer debugging

Targeted at frontend developers, UI/UX designers, and web analysts, the tool reduces the steps needed to capture visual details during design review. Rather than acting as a page debugger, it focuses on immediate readouts and visual cues that help capture typography, spacing, and color quickly, cutting the number of context switches required when compared with toggling multiple panels in native developer tools.

Surfaces computed CSS and element dimensions on the page

Inspection uses a hover-driven workflow after you activate inspection mode from the toolbar icon; hovering an element displays computed CSS properties such as font-family, font-size, and color in a readable panel. A visual overlay draws and labels the element's exact width and height, which helps verify spacing and box measurements without manually deriving values from the box model in the native suite.

Offers color picking and typography analysis for visual matching

Design-focused utilities report precise visual values, including a color picker that returns hex, RGB, and HSL values and a typography analyzer that lists font weights, line heights, and letter spacing. One-click copying of CSS styles to the clipboard accelerates reusing discovered rules in a project, which benefits handoffs and quick prototyping workflows where exact matches matter.

Stays lightweight and supports local files across Chromium browsers

The extension presents a minimalist, non-intrusive UI that remains inactive until you enable it, avoiding extra on-screen clutter during normal browsing. It runs on Chrome and other Chromium-based browsers such as Microsoft Edge, Brave, and Opera, and it supports inspecting local files after enabling 'Allow access to file URLs' in extension settings. The developer maintains the add-on with an emphasis on fast, in-situ style checks.

Best used as a rapid visual-inspection companion, not a replacement for full DevTools

The tool fits frontend developers and UI designers who need quick, on-page reference data during design reviews and handoffs because it centers on extracting visual values rapidly. For deep debugging, network tracing, and performance profiling rely on the browser's native toolset; treat the extension as a first-pass inspection aid that reduces time spent locating visual attributes before deeper investigation.