I need to generate a multi size ICO file for a desktop software icon. It needs to contain the following sizes:

16x16 (32-bit)
32x32 (32-bit)
48x48 (32-bit)
96x96 (32-bit)
128x128 (32-bit)
256x256 (32-bit)

Is there a web app that can do that?

closed as off-topic by ale, Rubén, Eight Days of Malaise, user79865, Vidar S. Ramdal Dec 21 '15 at 11:06

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ConvertICO.org can do it. Select the input file, then select the output icon type with Custom Dimensions (Multi-size in one icon) setting, and finally click Convert button. Now you can download your multi-size icon file.


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