Sukat Inspector NEW

Audit every image.
Measure the bloat.

A free Chrome extension that finds the heavy images on any page and compresses them with Sukat — entirely in your browser, never on a server.

Add to Chrome — Free

No upload · No account · Ad-free · Open standards

Sukat Inspector empty state — Audit every image. Measure the bloat.

Find the bloat

Every image on the page, sorted by file size. Flagged when its natural dimensions exceed what's actually displayed. The kind that hurts Largest Contentful Paint.

Locate instantly

Hover any row in the audit and the matching image is outlined on the page and scrolled into view. No more hunting through DevTools to find the offender.

One-click compress

Send one image — or every flagged image — to Sukat in a single tab. Sukat receives the batch and hands you a ZIP. No upload, no account, no waiting in line.

See it in action

Five clicks from "is this page slow?" to a folder of compressed images.

Audit results — every image, sorted by size
Hover to locate the image on the page
Send the whole batch to Sukat with one click

Privacy by design

No file is ever uploaded to a server.

The extension fetches an image's bytes from the host where it lives (your CDN, the site's origin server) and passes them to the open Sukat tab using Chrome's local inter-process messaging. The bytes travel inside your own browser — from the extension to Sukat — and are then compressed by Sukat's existing Canvas pipeline. No backend. No transit. No exception.

Source host Your browser Sukat

Read the full privacy policy →

Sukat Inspector's empty state with the privacy note: No file is ever uploaded to a server.
Changelog

What's new in Inspector

Every public release of Sukat Inspector, dated and versioned. Updates ship through the Chrome Web Store — if auto-updates are on, you're already on the latest.

  1. v1.2.0 Current Feature

    The right-click menu gains Original vs Page-displayed sizing with live dimensions, multiple Compress clicks now collect into a single Sukat tab, and a new Social card preview catches broken or wrong-shape og:images that fly under the radar everywhere else.

    Added

    • Right-click submenu with Original vs Page-displayed. Compress with Sukat now opens a submenu with two choices — Original (full-resolution bytes) or Page-displayed (resized to what the page actually renders the image at). Each option shows the live dimensions and an estimated file size, so you can pick the right trade-off before clicking. Dimensions appear instantly; size estimates fill in moments later via a background HEAD request.
    • Multiple compresses collect into one Sukat tab. Click Compress on image 1, then image 2, then image 3 — they all queue into the same Sukat tab instead of opening a fresh tab each time. The queue persists across the additional clicks (and survives a manual page refresh), and clears itself when you close the tab or compress the batch.
    • Configurable Heavy threshold. A new gear icon in the toolbar opens Settings, where you can set the file-size ceiling above which images get flagged as heavy. Defaults to 1 MB; range from 1 KB to 100 MB; syncs across your Chrome installs via Chrome's built-in profile sync.
    • Social card preview. Expand the Social & SEO Images section and click Preview cards to see how the page renders on Facebook, LinkedIn, and X — using the page's actual og:image, og:title, twitter:image, and twitter:card values. Each card mirrors the platform's real typography, spacing, and image aspect ratios, so a title that gets truncated on X (but not on Facebook) is visible at a glance.
    • Broken social image detection. If og:image or twitter:image points to a URL that returns a 404 (or any non-2xx status), the row gets a red broken pill and the issue is called out at the top of the section. A broken og:image looks fine in your HTML — the tag is there, the URL parses — so it can quietly break every share for weeks. Now it surfaces immediately.
    • Wrong-aspect and too-small warnings on essential social images. If your og:image is shaped wrong for Facebook (which wants 1.91:1) or your twitter:image is too small for the chosen card type, you'll see both a per-image pill and a summary at the top of the section.

    Changed

    • Faster image hand-off to Sukat. The bridge between Inspector and the Sukat compressor now uses a binary-data transport instead of base64-encoded strings. Large images (multi-MB hero shots, photography portfolios) no longer hit the previous timeout — typical hand-off is 2–5× faster.
    • One Sukat tab, reused. Clicking Compress no longer opens a new tab each time — Inspector finds your existing sukatapp.com tab and reuses it. Combined with the additive queue above, an audit-then-compress session no longer leaves a trail of half a dozen Sukat tabs.
    • Typography refinements. Cleaner numeric readout in the stat grid (tabular sans replacing italic serif for the values), lighter modal headings, calmer empty-state copy. The numbers now line up cleanly across cards and don't jitter as counts change.
    • Per-row pills include wrong-shape and too-small. These already had per-image checks running but were only surfacing through the dimension warnings — they now show as proper toolbar-style pills alongside the heavy flag.

    Fixed

    • twitter:image shape detection. The card-type lookup was reading from the wrong path and defaulting twitter:card to undefined — which meant twitter:image was always evaluated as the small summary card (expecting 1:1), even when the page declared summary_large_image (which wants 1.91:1). Pages with perfectly correct 1.91:1 Twitter images were getting falsely flagged. Fixed.
    • Hover-highlight console spam. In side-panel mode, navigating the scanned tab away leaves the audit visible but the in-page highlight script is gone. The previous behaviour logged a warning on every subsequent row hover; the panel error tray would fill up. Inspector now notices the page has changed on the first failure and silently stops trying until the next scan.
    • Cold service-worker race on Compress. First Compress click after Chrome had idled out the extension's background service worker would occasionally fail with a connection error. Inspector now retries the hand-off once after a short delay, and falls back to opening a fresh tab if the retry also fails — so the click always does something.
    • Right-click after extension reload. Right-clicking an image in an already-open tab (without refreshing the page after an extension update) now shows the size details immediately. Previously you had to refresh the page first to get the new content script in place.
  2. v1.1.0 Feature

    Two new collapsible audit panels at the top of the popup — Page Metadata and Social & SEO Images — plus a Heavy flag that catches the byte-size cases the dimension-only audit was missing.

    Added

    • Page Metadata audit panel. New collapsible section at the top of the popup that audits the current page's <title>, meta description, and canonical URL. Each card shows a live character count with warn/error thresholds (title: warn at 60c, error at 70c, warn under 30c; description: warn at 160c, error at 170c, warn under 70c) and a one-click copy button. Canonical is checked for presence and for matching the current URL (origin + path, ignoring query and fragment). When every check passes the section collapses to a single all good status.
    • Social & SEO Images section. New collapsible section that audits the page's social and SEO image references — og:image, twitter:image, favicon, manifest icons. The header shows the count detected so you can see at a glance whether the page is complete on social previews.
    • Heavy flag. A new byte-based predicate that flags any image over 1 MB regardless of dimensions. Surfaces in the stats row and as a new Heavy filter pill. A 1.99 MB photo served at its natural size — previously invisible to the dimension-only audit — now surfaces immediately.
    • Inline SVG count in the footer. A new +N inline SVGs on page line surfaces SVG elements as context rather than mixing them into the file audit, since inline SVGs aren't downloadable files and don't belong in the compress pipeline.

    Changed

    • Bulk button label is action-accurate. Compress N flagged (was Compress N oversized). It sends every oversized and heavy image in one batch.
    • CSV export gains a heavy column so the action list in the spreadsheet matches what's in the popup.

    Fixed

    • Lazy images now get measured. An off-DOM Image() probe resolves naturalWidth/Height for images below the fold, so lazy-loaded photos stop silently skipping the audit. Each lazy image carries a lazy tag in its row so the cause of the catch is visible. The audit re-runs after the probe and after each file-size batch, so flags light up as data resolves.
  3. v1.0.5 Security

    A focused security pass on how Inspector builds its UI from page data. No new features, no permission changes, nothing user-visible — just stricter, safer handling under the hood.

    Changed

    • Image-list rows are now built with safe DOM APIs. Page-supplied strings (image URLs, alt text, filenames, fetch errors) are inserted as text rather than parsed as HTML. Defence-in-depth against unusual characters in audited pages.
    • Explicit Content Security Policy added to the extension's pages, locking down script and resource sources beyond Chrome's defaults.
    • URL scheme allowlist. Only http: and https: links are followed when Inspector opens a tab or loads a thumbnail. Anything else is rejected before the request is made.
    • Inline event handlers removed. The broken-image fallback now uses an attached event listener instead of an inline onerror attribute.
  4. v1.0.4 Feature

    Images now list in the order they appear on the page, a resizable side panel keeps Inspector open while you work, you can scope by image format, and oversized images carry a clear “N× too big” badge. Larger pages also send more images per batch.

    Added

    • Page-appearance order is the new default sort. Images list top-to-bottom matching how they appear on the page, so an audit reads like scrolling. Click the “Size” header any time to flip back to heaviest-first.
    • Side panel. A new toolbar button opens Inspector beside the page and keeps it open while you click around — ideal for hover-to-locate on long pages. Works at panel widths from 320–450 px.
    • Format filter. A dropdown next to the filter pills lets you scope to a single image format (JPG, PNG, WebP, GIF, SVG, AVIF…). Options populate dynamically from whatever the scan finds.
    • “N× too big” badge on oversized rows. Surfaces the actionable multiple at a glance — e.g. a photo rendered at 1× but served at 4× flags as 4× too big.

    Changed

    • Rendered dimensions are now legible. The displayed size (what the page actually shows) sits clearly under the natural size, so it's obvious when an image is delivered at multiples of its rendered footprint.
    • “Image” column header sorts by page order instead of alphabetical-by-URL. Click to toggle top-to-bottom / bottom-to-top.
    • Bulk-compress cap raised from 50 to 200 images per batch. Large galleries and e-commerce category pages now send completely in one pass.
  5. v1.0.0 Initial release

    First public release on the Chrome Web Store. Inspector audits images on any page, flags oversized files, and hands them off to Sukat in one click — without anything leaving the browser.

    Added

    • Page image audit. Lists every image on the active tab with its rendered dimensions, file size, format, and alt text. Oversized files are flagged inline so the worst offenders sort themselves to the top.
    • CSV export. Download the full audit as a CSV — sortable, filterable, easy to hand to a developer or paste into a brief.
    • Right-click “Compress with Sukat”. Adds a context-menu action on any image. Sends it straight to sukatapp.com with the image pre-loaded and the source tagged.
    • One-click handoff to Sukat. Both the audit panel and the right-click action deep-link to sukatapp.com/?import=<url>&ref=<source> so the round-trip stays clean and traceable.
    • Privacy-preserving bridge. The extension fetches each image with its own host permissions, encodes it as base64, and passes it to the open Sukat tab via chrome.runtime.sendMessage. The image is never uploaded — Sukat's privacy promise carries over end-to-end.
    • Stable extension ID. The manifest pins the development ID so local builds and the published version stay distinguishable when both are installed.

Want a heads-up when Inspector updates? Drop a line and Bernard will tag you on the next release post.

Common questions

Does it cost anything?

No. Free forever, no account required, no premium tier, no ads. Same model as the rest of Sukat.

Will it slow my browser down?

No — the extension does nothing unless you click it. It doesn't run on every page you visit, doesn't track you, doesn't sit in the background fetching things. Open the popup, click Scan, and only then does it audit the current page.

What sites does it work on?

Any website. WordPress sites, Shopify stores, custom React apps, static blogs — anywhere there's an <img> tag or CSS background image, Sukat Inspector can audit it.

What's the difference between Sukat and Sukat Inspector?

Sukat (this website) is for compressing images you have — drag in a file, hit a file size target, download. Sukat Inspector is for finding images that need compressing on a webpage you're looking at. Use Inspector to find them, Sukat to fix them. The two pipe directly into each other.

Is my data really safe?

Yes. The extension has no backend — there is literally no server we control that could receive your data. We don't use Google Analytics, advertising scripts, or any tracking in the extension itself. The only thing leaving your browser is the request to fetch image bytes from their original host — the same kind of request your browser makes when it loads the page normally. Full disclosure here.

Firefox / Safari / Edge support?

Chrome and Chromium-based browsers (Edge, Brave, Arc, Vivaldi) work today. Firefox support is on the roadmap. Safari requires significant rework due to Apple's extension model and isn't planned yet.

Ready to find the bloat?

+ Add to Chrome — Free

Or just keep using sukatapp.com directly — the extension is the audit superpower, but the compressor is what you already love.