behind!
The behind add-on can reveal background and embedded images, including images hidden beneath page layers or encoded in page content.
About behind!
behind! is an open-source browser add-on whose source code lives in a GitHub repository. It is intended for situations where the browser's built-in "view background image" option is greyed out, and it works by revealing images that a page does not normally expose to the user.
The add-on can surface background images, images sitting under layers such as clickable surfaces placed over them, embedded or base64-encoded image chunks, alternative resolutions, vector images even when inlined, and images inside shadow DOM. The repository is licensed under MPL-2.0 and lists links to the Firefox add-on page and the Chrome extension page; no pricing information is stated.
Key features
- Reveals background images when "view background image" is greyed out
- Surfaces images hidden beneath layers such as clickable surfaces
- Extracts embedded and base64-encoded image chunks from page content
- Finds alternative resolutions of images
- Detects vector images, including inlined ones, and images in shadow DOM
- Open source under MPL-2.0 with localized strings
Best for: People who need to view or save images on pages where the browser's standard image options do not work.
Good for
- Source code is publicly available on GitHub under the MPL-2.0 license
- Installation links for both a Firefox add-on and a Chrome extension are listed
- Covers several hidden image types, including layered, encoded and shadow DOM images
Watch out for
- No pricing information is stated in the source material
- The repository page offers no details about data collection or permissions
behind! at a glance
- Website
- github.com/kubuzetto/behind
- Category
- Software & Utilities › Browser Extensions
- Type
- Open-source project
- Pricing
- Not confirmed. Check the site
- Platforms
- Browser extension
- Open source
- Yes · Source code
- Language
- English
- Last checked
- Oct 6, 2026 · Online when checked
- Listed
- Oct 5, 2026
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behind! FAQ
What kinds of images can behind! reveal?
Background images, images under layers, embedded or base64-encoded image chunks, alternative resolutions, vector images even when inlined, and images in shadow DOM.
Is behind! open source?
Yes. The source code is hosted on GitHub and released under the MPL-2.0 license.
Where can behind! be installed from?
The repository lists a link to the Firefox add-on page and a link to the Chrome extension page.
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