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CastBrowser - Video Downloader & Cast to TV

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Overview

Video downloader & web video caster: detect videos in tabs, download MP4/WebM, cast HLS/M3U8 streams to Chromecast or Google TV.

CastBrowser detects compatible video streams in the browser tab you are viewing and gives you three simple actions: play, save, or send to your TV. KEY FEATURES - Automatic video detection - a toolbar badge shows how many compatible items were found in the current tab. - MP4, WebM and HLS support - identifies direct files and M3U8 playlists as they load. - Built-in preview - check a file before you save or send it anywhere. - Direct download - save compatible MP4 and WebM files to your computer for offline viewing. - Google Cast playback - send supported media to Chromecast, Google TV, Android TV, or a television with Chromecast built in. - HLS quality selection - choose from available resolutions, frame rates and bitrates when a compatible master playlist provides multiple options. - Useful details - review format, resolution, duration and file size when available. HOW IT WORKS 1. Open a page containing video. Start playback if nothing has appeared yet. 2. Look for the numbered badge on the extension icon. 3. Open CastBrowser to see what was found in that tab. 4. Choose Cast, Play or Save. 5. For television playback, keep your computer and your Google Cast device on the same Wi-Fi network. FORMAT SUPPORT Direct MP4 and WebM video files can usually be previewed, saved or sent to a TV. HLS/M3U8 adaptive streams are detected and can be selected by quality and sent to a supported Google Cast device. Results depend on the source website, the format, your browser, your network and the receiving device. WHO IT IS FOR - Anyone who would rather watch on a big screen than a laptop. - People keeping lecture recordings, webinars and tutorials for offline study. - Researchers and archivists saving a copy of material they have rights to. IMPORTANT Use CastBrowser only with media you own or have permission to access, save or stream. CastBrowser does not host or provide content and does not bypass DRM, paywalls, sign-in requirements or website restrictions. YouTube and DRM-protected services are not supported. PRIVACY Detection and the results list are processed locally by the extension. No CastBrowser account is required. TV casting uses a sender page hosted

Details

  • Version
    1.0.1
  • Updated
    August 16, 2026
  • Size
    56.67KiB
  • Languages
    English
  • Developer
    ROTUNDA TECH LTD
    2nd Floor College House 17 King Edwards Road Ruislip HA4 7AE GB
    Website
    Email
    contact@castbrowser.tv
    Phone
    +44 7518 026316
  • Trader
    This developer has identified itself as a trader per the definition from the European Union and committed to only offer products or services that comply with EU laws.
  • D-U-N-S
    230483388

Privacy

Manage extensions and learn how they're being used in your organization

CastBrowser - Video Downloader & Cast to TV has disclosed the following information regarding the collection and usage of your data. More detailed information can be found in the developer's privacy policy.

CastBrowser - Video Downloader & Cast to TV handles the following:

Location
Web history
User activity
Website content

This developer declares that your data is

  • Not being sold to third parties, outside of the approved use cases
  • Not being used or transferred for purposes that are unrelated to the item's core functionality
  • Not being used or transferred to determine creditworthiness or for lending purposes

Support

For help with questions, suggestions, or problems, visit the developer's support site

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