To convert asf movies online :

  1. Upload your asf file.
  2. Select your target format from conversion list.
  3. Enter a valid email address to get notified when the file is converted.

You can change your asf video settings such as: video bitrate, adjusting video frame rate to high definition NTCS or PAL, Cut wanted video section, Change rotation angle and flip it vertically or horizontally. Visit Online Video Converter to know more about our online video editor.


  • Drag & Drop file here


  • Convert to:

  • Email address:

  • You are almost done!

ASF file extension

Online Video Converter

What is ASF and how you can convert ASF file?

Our Free online video converter allow you to convert your video ASF ( Advanced Systems Format Media ) format. Upload your ASF file and then select the format type you want to convert to, after the conversion is completed you can download the converted video file instantly or by email.


ASF Extension

ASF file definition

ASF file format (Advanced Streaming Format) is a multimedia container that was developed by Microsoft to stream media. In addition to media, ASF stores metadata of the files like; title, author, description, date and copyright bibliographic data. ASF files are often giving the extension of Windows Media Audio (.WMA) or Windows Media Video (.WMV) data. You can convert this type of files and others with Filezigzag.

Technical details for ASF file

ASF file defines and understand the structure of Audio and video streams but doesn’t specify the encoding method. It can include independent OR dependent multimedia streams. ASF file contains three basic segments; A header that consists information about the file itself, such as, file size, codecs and metadata. Data segment which includes the actual content and Simple Index that supports random access to the file. ASF file can be opened with Windows Media Player, VLC and many others.

File extension


Developed by:

Microsoft Corporation

ASF MIME type:


FileZigZag is a free online file conversion, Supports a wide variety of different file formats, videos, audio, images, documents, archives without download any software.
© 2019 FileZigZag