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Video Container Format Detector

Upload your video ad to determine the video's container format (MP4, WebM).

Collect 24+ data points and validate against IAB ad guidelines

Go ahead, just
drop your ad !
HTML5 Zip
Ad Tag
VAST
Video
Image
Audio
smart_display settings_system_daydream panorama
Drop your video ads here
MP4, WebM, MOV, AVI, MPG, 3GP

File Format

The container is a format used to bundle the video and audio data into one file. Common containers are MPEG-4, WebM and QuickTime.

Why do we test it?

In order to play the video, the browser or device must understand the container format to find out where the video and audio parts are located. MPEG-4 is supported by almost all browsers and devices. If you're serving the video in a different format, make sure your targeted device supports it. For example, serve videos in QuickTime formats only to Apple users.