A Chrome, Firefox and Edge extension that enlarges images and videos to full size when you hover over them on supported websites.
nolozy/web-magnifier
A Chrome extension (Manifest V3) that keeps a chosen area of any web page magnified in a small floating window.
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- 6 days ago
What is it?
Web Magnifier lets you drag over part of a web page and keep that area enlarged in a small floating window while you continue using the rest of the page. It is useful for watching a minimap in a game video, reading small print, or following a chart without losing your place.
Video areas are drawn directly from the video element at its native resolution on every frame, so playback stays smooth and sharp. Other content such as text, images and charts is cropped from a tab screenshot and refreshed about twice per second. The window can be dragged, resized from its bottom right corner with the aspect ratio locked, and keeps working when the player goes fullscreen.
The extension is loaded as an unpacked folder rather than installed from the Chrome Web Store. It only runs on a tab after you click its icon or press Alt+Shift+M, and it has no servers, analytics or network requests.
Key features
- 01Magnifies any selected area of a regular web page in a floating window.
- 02Videos are drawn frame by frame at their native resolution for smooth playback.
- 03Non-video content is refreshed from tab screenshots about twice per second.
- 04Window can be moved by dragging and resized with the aspect ratio locked.
- 05Requests no site access up front and runs only after you click the icon or use the shortcut.
Use cases
- Watching the minimap in a game video while playing or following a stream.
- Reading small print or fine details on a page without zooming the whole browser.
- Keeping a chart or table visible while scrolling through the rest of a page.
In collections
Topics
FAQ
- What is web-magnifier?
- A Chrome extension (Manifest V3) that keeps a chosen area of any web page magnified in a small floating window. Web Magnifier lets you drag over part of a web page and keep that area enlarged in a small floating window while you continue using the rest of the page. It is useful for watching a minimap in a game video, reading small print, or following a chart without losing your place.
- Is web-magnifier free to use? What license does it have?
- web-magnifier has no declared license. Its code is public, but without a license you have no explicit permission to reuse it; ask the author before relying on it.
- Is web-magnifier still maintained?
- Actively maintained. The last commit to web-magnifier was on Nov 1, 2026.
- What can I use web-magnifier for?
- Watching the minimap in a game video while playing or following a stream. Reading small print or fine details on a page without zooming the whole browser. Keeping a chart or table visible while scrolling through the rest of a page.
- Where can I get web-magnifier?
- The source code and installation instructions are on GitHub: https://github.com/nolozy/web-magnifier
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