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ASF AVI
File conversion

Convert ASF to AVI

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Verified by Adam B.· reviewed by FE Editorial ·updated Aug 11, 2026
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Is it possible to convert ASF to AVI?
Yes - ASF converts to AVI.

You can do it right here with our free converter - no sign-up, and your file is deleted right after.

Upload your file to the converter above for the quickest result. Because ASF and AVI use incompatible codecs, every conversion is a re-encode - expect a small quality dip. DRM-protected ASF files such as older Windows Media Store purchases cannot be converted by any tool.

8 programs
Also to AVI: MPEG4 · WLMP · MXF

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Tested on macOS, Windows & Linux
Last verified Sep 2026

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ASF → AVI converterFREE
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Why convert ASF to AVI?

Older Windows video editors and DVD authoring tools often require .AVI and refuse to open ASF or WMV files directly. Converting to AVI with Xvid or DivX video and MP3 audio restores compatibility with that legacy software. For modern editors and devices, MP4/H.264 is the smaller and more universally supported target.

How to convert ASF to AVI

VLC media player FREE

Go to Media > Convert / Save, add your .asf file, set the profile encapsulation to AVI with MPEG-4 or H-264 video and MP3 audio, then export.

AviDemux OPEN-SOURCE

Open your .asf in AviDemux, set the output container to AVI and choose compatible video and audio codecs, then save.

MediaCoder FREE

Add your .asf file to MediaCoder, select AVI as the output container with Xvid video and MP3 audio, then start the encode.

Command line - FFmpeg CLI

Run ffmpeg -i input.asf -c:v libxvid -q:v 4 -c:a libmp3lame -q:a 4 output.avi to re-encode with Xvid video and MP3 audio.

Programs that convert ASF

Aimersoft DRM Media Converter for Windows
SUPER
AviDemux
Free Studio
MediaCoder
Movavi Video Converter Personal
AMV Video Convert Tool
Adobe Premiere Pro

About these formats

.ASF Advanced Systems Format

An ASF file is Microsoft's Advanced Systems Format container - the same format that underlies Windows Media Video (.wmv) and Windows Media Audio (.wma). On Windows, double-click it and…

Open .ASF details →
.AVI Audio Video Interleave

An AVI file is a video container created by Microsoft in 1992. To open one, use VLC media player - it includes the DivX/Xvid codecs old AVIs need and works on Windows, Mac, Linux, Android…

Open .AVI details →

Quality & what to watch

  • Conversion is always a re-encode - ASF's WMV/WMA codecs cannot be carried into AVI - so expect a small quality dip compared to the source.
  • AVI's original RIFF spec has a 2 GB file-size limit; most modern tools use the OpenDML extension to exceed it, but very old editors may not read those larger files.
  • DRM-protected ASF files cannot be converted by any tool; if VLC shows a licence error when playing the file, conversion is not possible.

Frequently asked questions

Can I convert ASF to AVI without losing quality?
Not entirely - re-encoding always introduces some quality loss. Using a high bitrate or a low CRF value in FFmpeg keeps the degradation minimal.
Why is my converted AVI larger than the original ASF?
WMV is a highly efficient codec; AVI with Xvid or H.264 at the same visual quality typically produces a larger file.
My ASF file will not convert - what is wrong?
The most likely cause is DRM protection. Open the file in VLC first; if it shows a licence error, the file cannot be converted by any free tool.
Is `.asf` the same as `.wmv`?
Both use the identical Advanced Systems Format container, so renaming .asf to .wmv often makes players recognise the file without any conversion needed.