Canvas Capture

Canvas Capture

Capture video from canvas elements

What is Canvas Capture?
Canvas Capture is a Chrome extension that allows users to capture video from HTML canvas elements. Users just need to navigate to a page, identify the animated canvas element and hit capture. The program allows previewing of the captured videos before download. The extension mainly uses the MediaRecorder, MediaStream, and Blob APIs to generate the video files.
By: Unknown
Users: 1,000+
Version: 1.3.0 (Last updated: 2019-03-28)
Creation date: 2019-03-27
Risk impact: Moderate risk impact
Risk likelihood: Very low risk likelihood
Manifest version: 2
  • activeTab
  • storage
  • notifications
  • webNavigation
  • http://*/
  • https://*/
Size: 218.11K
URLs: Website
Stats date:

Other platforms

Not available on Firefox
Not available on Edge
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The Canvas Capture extension allows video to be captured from HTML canvas elements.

Currently, video is only output in the webm container in the browser's choice of codec (typically VPX).

To use, simply navigate to a page with an animated canvas element and click the extension's browser action (toolbar button). A list of canvases present on the page will be displayed with some details about each one. Click the capture button next to the canvas that should be captured. When finished, click the stop button and a link will be generated to download the resulting video file (the file is constructed using Blobs; no network access is required).

Captured videos can be previewed before they are downloaded. By default, videos are remuxed using libwebm in WebAssembly to produce a more useful video file that is seekable and shows a duration and progress in video players.

Canvas Capture produces video files of canvas elements using the MediaRecorder, MediaStream and Blob APIs.

User reviews
Works great when other ways failed!
by Brad Jasper Brad Jasper, 2024-04-10

Super helpfull! Thanks!

Works flawlessly! Thank you!
by Vinayak S Vinayak S, 2021-04-22
View all user reviews
Risk impact

Canvas Capture may not be safe to use and it requires some risky permissions. Exercise caution when installing this extension. Review carefully before installing.

Risk likelihood

Canvas Capture has earned a good reputation and can be trusted.

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Promo images
Canvas Capture small promo image
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