Ultra Zoom Blog

Ultra Zoom now reconstructs detail in low-resolution images at hover time using Real-ESRGAN, running entirely in your browser. Here's how on-device upscaling works, when it helps, and why it sends zero data to a server.

How buyer's agents use hover-to-zoom on Zillow, Redfin, Realtor.com, and MLS systems to disqualify listings, flag deferred maintenance, and prep for showings without opening every photo.

Which real estate sites and MLS image viewers Ultra Zoom supports out of the box, how the selector system handles the long tail of regional MLSs, and how to report a viewer that needs work.

A line-by-line look at what Ultra Zoom ships to every user, why each piece is there, and where the bytes are going.

How coin, stamp, book, card, and art collectors use hover-to-zoom on eBay, Heritage Auctions, Catawiki, and Worthpoint to inspect condition before placing a bid.

How illustrators, graphic designers, and art directors use hover-to-zoom to scan inspiration galleries, inspect texture and type detail, and build moodboards without losing their place.

React is a fine default for web apps. For a browser extension where every kilobyte ships to every user, Preact is a better fit — and the migration cost is close to zero.

How family history researchers use hover-to-zoom on Ancestry, FamilySearch, and digitized newspaper archives to read faded handwriting and spot clues in old photographs.

Every major browser has had the building blocks for native image zoom for two decades. Here's why they never stitched them together, and why extensions had to.

Manifest V3 reshaped what browser extensions can do. For hover-zoom tools, the migration created a fork in the road — and a lot of extensions took the wrong path.

How to spot stitching, resolution tricks, and condition details on Amazon, Etsy, and eBay using hover-to-zoom. No more squinting or opening every listing in a new tab.

Hover Zoom was the most popular image-zoom extension until it was caught injecting tracking scripts and selling browsing data. Here's the full story, and how Ultra Zoom avoids the same mistakes.

A detailed look at Ultra Zoom's data architecture: what stays on your machine, what crosses the network, and what is never collected or sent.

Ultra Zoom is now available on the Chrome Web Store and Firefox Add-ons, shipping with hover-to-zoom support for 60+ websites. What is in the first release, why the category needed another entry, and what has shipped since.

Every Ultra Zoom keyboard and mouse shortcut, what each one is actually for, and the workflows they combine into — scroll zoom, arrow-key galleries, theater mode, reverse image search, and per-site control.