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Hover elements to inspect content, padding, border, and margin box sizes. Pro remembers this site, presets, and ExtHub sync.

Debug page layout with depth outlines, flex/grid accents, and a configurable column overlay. Pro remembers this site, presets, an...

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

Click two points on the page to measure pixel distance, width, and height. Pro remembers this site, presets, and ExtHub sync.

Extract frequent colors from computed styles on the active page. Pro saves reports, export, and ExtHub sync.

Inspect meta robots, fetch robots.txt, list sitemaps, and test if a path is allowed for bots. Pro saves presets, history, and Ext...

Calculate IPv4 network, mask, and host ranges from a CIDR locally. Pro saves presets, history, and ExtHub sync.

Parse Content-Security-Policy from page meta tags locally. Pro saves reports, export, and ExtHub sync.

Inspect title, canonical, robots, and hreflang on the current page. Pro saves reports, export, and ExtHub sync.

Convert Unix permission octals and rwx flags locally. Pro saves presets, history, and ExtHub sync.

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.

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.

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...

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...

Measure words, characters, reading time, and keyword stats from selection, page, or a local pad. Pro saves snippets, extra format...