Hover-to-zoom is one of those features that feels deceptively simple until you use it every day. Then you notice that most of the time you spend on an image-heavy page is not spent looking at images — it is spent clicking into things, waiting for a modal, closing the modal, and losing your scroll position.

Every shortcut below exists to remove one of those steps. Here is the full set, what each is actually for, and the workflows they combine into.

The two you will use constantly

Scroll to zoom further. Once an image pops up, scroll the mouse wheel to zoom in or out on the preview itself. This is the difference between “is that a scratch?” and knowing. As of the current release, zoom centres on the point under your cursor rather than the middle of the image, so you can drive straight into the corner of a photo instead of zooming in and then hunting for the thing you were looking at.

Escape to close. Esc dismisses the overlay without moving your mouse or losing your place on the page. It sounds trivial. It is the single shortcut that makes hover-zoom feel like part of the browser rather than a thing layered on top of it — because the alternative, moving the mouse away to dismiss, means your cursor is now somewhere you did not choose.

Galleries without the lightbox

Arrow keys walk the gallery. On Reddit, Instagram, Pinterest, and any listing site with a photo set, ← and → step through the gallery while the overlay stays open. You never enter the site’s own lightbox, which means you never have to find your way back out of it.

This is the feature that changes how a listing page feels. On a real estate search, a listing card shows one photo; the listing itself has thirty. Hovering the card and pressing → thirty times takes about eight seconds and tells you whether the property is worth opening — without a single page load. The same pattern works on auction lots, product listings, and artist portfolios. There is a longer write-up of that workflow for buyer’s agents if that is your use case.

Z for theater mode. Theater mode gives the image the full window, centred, with the page dimmed behind it. Use it when you have found the one image that matters and want to actually study it. It also handles rotation and panning, and those transforms now survive re-showing the image, so you can flip to the next photo and back without losing your framing.

Reverse image search, without leaving the page

Hover an image and press a single letter to run a reverse image search on it: G for Google, T for TinEye, N for Bing, Y for Yandex, plus Q and J for two more engines.

The reason there are six of them is that they genuinely disagree. TinEye is the best at finding exact copies and earlier publication dates, which is what you want when you are checking whether a listing photo was lifted from somewhere else. Yandex is unreasonably good at faces and places. Google is best at “what is this object”. Being able to try three of them in five seconds, from the image itself, is a different activity from opening a reverse image search tab and uploading a file. The comparison with dedicated reverse image search extensions goes into where the tradeoffs land.

The one everybody forgets

? opens the shortcut overlay. Every shortcut above, listed in the page you are already on. If you remember exactly one key from this post, make it this one — it means you never have to come back here.

Per-site control

Some sites already have a lightbox you like. Some sites you would rather Ultra Zoom left alone entirely.

Per-site toggle. Click the Ultra Zoom toolbar icon and flip the site-specific switch. Ultra Zoom stays out of the way on that domain and keeps working everywhere else. The setting persists, so this is a decision you make once per site.

All-sites mode. The opposite problem: a site with no dedicated plugin where you still want hover-zoom. Toggle All sites in the popup and Ultra Zoom applies generic URL rules to any domain. It is less precise than a purpose-built plugin — a plugin knows that a particular site encodes its thumbnail size in the filename, and generic rules can only guess — but it covers a great deal of the long tail. The supported sites list shows what has a dedicated plugin.

Per-site AI upscaling. Upscaling is worth the compute on some sites and pointless on others. A site that already serves high-resolution originals gains nothing; a site that caps images at 600 pixels gains a lot. The toggle is per-site for that reason, so you are not paying for inference where it does not help. How the on-device upscaling works covers what it can and cannot reconstruct.

Two workflows worth stealing

Triage a results page. Hover the first result, then use → to walk the entire page of results without moving the mouse. Press Z when something is worth a real look, Esc to get back. You can clear a page of forty search results in under a minute and open only the two that survived.

Verify before you commit. On a listing you are about to act on — a purchase, a bid, a showing — hover the photo, scroll all the way in on the area you care about, then press T to check whether the photo appears anywhere else. Stock photography and recycled listing images show up immediately. On Pro, Ctrl+C copies the image at the size you have zoomed to, which is a convenient way to keep evidence.

The full reference, always current with the shipped release, lives on the Help page.