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Count unique CSS class names used in the current page DOM. Pro saves reports, export, and ExtHub sync.

Mark focusable elements and step through tab order on the page. Pro saves searches/presets and syncs via ExtHub.

Look up common file extensions and MIME types offline. Pro saves presets, history, and ExtHub sync.

Find and highlight scrollable overflow containers on the page. Pro saves reports, export, and ExtHub sync.

Bump and compare semantic versions locally in your browser. Pro saves presets, history, and ExtHub sync.

Search a local HTTP status code reference in the popup. Pro saves presets, history, and ExtHub sync.

Read navigation and paint timings from the current tab locally. Pro saves reports, export, and ExtHub sync.

List page elements with z-index or fixed/sticky positioning. Pro saves reports, export, and ExtHub sync.

Keep a local history of clipboard text snippets. Pro saves snippets, extra format options, and ExtHub sync.

Check WCAG contrast ratios between foreground and background colors. Pro saves reports, export, and ExtHub sync.

Highlight multiple search terms on the page with soft pastel colors. Pro saves snippets, extra format options, and ExtHub sync.

Fill forms with realistic, locally generated test data in Chrome and Edge. Pro saves presets, history, and ExtHub sync.

Capture a page region as PNG or JPEG — aspect locks, delay, size readout, download or copy. Pro remembers sites, saved presets, a...

Pick page colors with EyeDropper or click sampling — HEX/RGB/HSL, contrast, history, tints. Pro saves reports, export, and ExtHub...

Save tabs to a local read-later stack with tags, notes, search, and a done archive. Pro saves searches/presets and syncs via ExtHub.

Local markdown pads with live preview, snippets, word count, and .md export. Pro saves snippets, extra format options, and ExtHub...

Preview Open Graph and Twitter cards, check meta lengths, and copy share metadata locally. Pro saves presets, history, and ExtHub...

Map page headings, filter levels, spot outline gaps, and jump or copy a Markdown TOC. Pro saves presets, history, and ExtHub sync.

Local notes per site or page — multiple pads, search, autosave, and export. Pro saves snippets, extra format options, and ExtHub...

Focus pulses with work/break/long-break cycles, presets, session stats, and a live badge. Pro saves searches/presets and syncs vi...

Stamp local QR codes for tab URLs, custom text, or Wi-Fi — size, colors, history, PNG export. Pro saves snippets, extra format op...

Auto-reload a chosen tab on a timer with presets, countdown, hard reload, and pulse limits. Pro saves searches/presets and syncs...

Test, highlight, and replace with regex — recipes, flags, groups, and saved patterns locally. Pro saves snippets, extra format op...

Find idle tabs by last access, protect pinned/audio/domains, and sunset them safely. Pro remembers sites, saved presets, and ExtH...