ASF Converter

  1. Add your file.

  2. Choose the output format.

  3. Click Convert.

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Available translations: EN
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Convert ASF files online for free

This freeware ASF converter lets you change your file format in just a couple of clicks. To convert ASF, simply add your media to the online tool, select the output format, and start the process. If you want more features, download the desktop version of this ASF video converter for free for Windows and Mac.

What is ASF?

Full name

Advanced Systems Format

Format type


Developed by



ASF (Advanced Systems Format) was created by Microsoft with the primary objective of supporting HTTP and media server playback. If you are not sure how to play an ASF file, you’ll find information about the ASF format specification and a list of programs that can help you open media of this file type below.

File extension


Technical details

An ASF file can contain multiple audio and video streams and be encoded with various codecs. The ASF file type is most often used for streaming media. An ASF file can also include metadata, text, and web pages.

Associated programs

Windows Media Player, CyberLink PowerDVD, VLC, and Winamp

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