Livrify

Livrify is a small, free Chrome extension aimed at people who read a lot and would rather not overpay for books. Its core job is bookkeeping plus bargain hunting: you save the books you are interested in to a single list, and the extension itself does the tedious part of checking how those titles are priced across different book-selling sites. Instead of opening half a dozen store tabs, you get a comparison that points you at the best deal.

On top of the price tracking, Livrify adds a light recommendation layer. It looks at what is already on your reading list and suggests new titles based on those interests, effectively turning your own shelf into a source of suggestions. The extension is intentionally tiny and unobtrusive, living in the browser toolbar where you are already reading about books.

The listing itself is small - around 9 KB - and the extension has a modest user base, so it is best seen as a handy utility for frugal readers rather than a full library management system. It is free, requires no subscription, and is published by an independent developer. If your goal is simply to spot a discount before you click buy, that is exactly what it is built for.