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Banner Ad File Extension Checker

Upload your banner ad to check the file extension.

Collect 13+ data points and validate against IAB ad guidelines

HTML5 Zip
Ad Tag
VAST
Video
Image
Audio
 
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Drop your image file here
Format: PNG, JPG, GIF
auto_stories
API Docs
Go ahead, try
it yourself !

File Extension

The file extension indicates the type of image format being used, such as .png or .jpg. Each format has its advantages depending on the use case.

Why do we test it?

Ensuring the correct file extension is important because different formats support different features. PNG, for example, supports transparency, while JPG is more suitable for smaller file sizes. Using the right format ensures compatibility with ad networks and optimizes the trade-off between quality and load speed.