效率

Hover elements to inspect content, padding, border, and margin box sizes.

Debug page layout with depth outlines, flex/grid accents, and a configurable column overlay.

Scan page links for broken URLs — filters, concurrent checks, export, and on-page highlight.

Click two points on the page to measure pixel distance, width, and height.

Extract frequent colors from computed styles on the active page.

Inspect meta robots, fetch robots.txt, list sitemaps, and test if a path is allowed for bots.

Keep a local history of clipboard text snippets.

Highlight multiple search terms on the page with soft pastel colors.

Fill forms with realistic, locally generated test data in Chrome and Edge.

Local markdown pads with live preview, snippets, word count, and .md export.

Preview Open Graph and Twitter cards, check meta lengths, and copy share metadata locally.

Map page headings, filter levels, spot outline gaps, and jump or copy a Markdown TOC.

Local notes per site or page — multiple pads, search, autosave, and export.

Measure words, characters, reading time, and keyword stats from selection, page, or a local pad.

Multi-city world clock with a saved watchlist, meeting-time conversion, and a live toolbar badge.

Periodic break reminders using alarms, notifications, and toolbar badge.

Simple keyboard-friendly calculator in a popup.

Convert text between common case styles in one click.

Track multiple target dates with live days/hours/mins/secs, presets, and a toolbar badge.

Split hostnames into eTLD+1, flag lookalikes and Punycode, keep a local trust list, and show an optional page banner.

Stopwatch with lap times. Runs while the popup is open.

Reading progress bar with percent, milestones, colors, top/bottom placement, and per-site control.

Hover images on a page to see natural and displayed dimensions.

Convert text to a clean URL slug and copy it instantly.