Dezoomify

Detect zoomable images in web pages and download them with dezoomify.

Dezoomify is a powerful Chrome extension that detects zoomable images embedded within various web pages and enables easy downloading using the dezoomify tool. Once installed, it intercepts network requests, identifies zoomable images based on advanced pattern matching, and offers a convenient download button directly in your browser's address bar.

It supports a wide variety of major art and library platforms such as Google Arts & Culture, Gallica, The British Library, National Gallery of Art, and others. Dezoomify also works with popular zoomable image technologies including IIIF, Microsoft Deep Zoom, Zoomify, and Memorix Image Viewer. Designed for researchers, digital archivists, and art enthusiasts, this extension streamlines the process of saving high-resolution zoomable images from online repositories and cultural websites. Being open-source and free software, its source code is available for transparency and community contributions.

By:
Ophir LOJKINE
Daily users:
2,814 -20
Rating:
4.63
(16)
Version:
1.0.1 Last updated: 2021-08-12
Version code:
5279368
Creation date:
2020-01-03
Risk:
Moderate risk impact Low risk likelihood
Permissions:
  • activeTab
  • webRequest
  • contextMenus
  • <all_urls>
Size:
3.59MB
URLs:
Website
Full description:
See detailed description
Source:
Firefox Browser Add-ons
Data ingested on:
2025-07-13

Other platforms

Dezoomify (v1.0.1)
10,000 4.91 (35)

User reviews

Dezoomify is praised for its ability to extract full-resolution images from difficult sources, saving users from manual and tedious efforts. It is highly valued by educators, archivists, and professionals dealing with protected or obscured images. Users find it practical, efficient, and reliable. However, a recurring issue is that the add-on sometimes fails to download complete images, leaving black squares in the output, which hampers usability.
Pros
  • Effectively retrieves high-resolution images from websites that do not provide direct download links.
  • Saves significant time and effort compared to manual image extraction methods.
  • Highly useful for professionals dealing with archival or hard-to-access imagery.
  • Appreciated for its practical functionality and ease of use.
  • Considered a reliable and excellent tool, with user donations indicating satisfaction.
Cons
  • Occasionally misses chunks of images during download, resulting in unusable black squares.
Recent reviews
by Ra*****, 2024-12-18

by gp*****, 2024-11-17

As I desperately needed this photo to extract the Intel 1103 DRAM die photo at a high resolution so I can teach my students, this extension was a godsend when a website is silly enough to not provide a direct download link.
by Fi*****, 2024-04-09
View all user reviews ›

Extension safety

Risk impact
Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

Dezoomify requires a few sensitive permissions. Exercise caution before installing.

Risk impact analysis details
  • Critical Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
  • High ****** *** ********* ** ******* *** ******* ******* ** ****** *** *** ******** ******
Risk likelihood
Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Browser Add-ons, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

Dezoomify has earned a fairly good reputation and likely can be trusted.

Risk likelihood analysis details
  • High This extension has low user count. Unpopular extensions may not be stable or safe.
  • Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
  • Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
  • Good **** ********* *** **** **** *******
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