Convert ASF to F4V
Online & free tool to convert ASF files to F4V

1) Input file

Choose source file(s) to convert:

0 of 5 files added (up to 1000 MB combined)

2) Output format

Select a target format to convert to:

3) Convert

By clicking you agree to our terms

Fine-tune conversion output with format-specific controls.

No advanced controls available for this format.

1) File URL

Choose file URL to convert:

2) Output format

Select a target format to convert to:

3) Convert

By clicking you agree to our terms

Fine-tune conversion output with format-specific controls.

No advanced controls available for this format.

1) Cloud Service

Choose a cloud service provider:

2) Output format

Select a target format to convert to:

3) Convert

By clicking you agree to our terms

Fine-tune conversion output with format-specific controls.

No advanced controls available for this format.
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ASF The .asf filename extension refers to the Microsoft owned audio and digital video container, advanced systems format. It is a container for windows media audio and windows media video but shares the same internal structure as both WMA and WMV file formats. The format was designed with the goal of increasing efficiency in distribution of audio video files across computer networks. However, it works just as well for local system playback. The asf format forms part of Microsoft's Foundation framework. The major feature of the format is its ability to add digital rights management by providing the framework for encrypting audio and video files.
F4V Flash MP4 Video File

Trusted conversion quality

FreeFileConvert uses tuned encoding for ASF to F4V conversions, preserving clarity while trimming file size. Finished audio streams instantly across phones, tablets, desktops, and modern browsers without extra tweaks.

Seamless workflow

Upload ASF files from desktop, tablet, or cloud storage, queue multiple jobs, and let the converter finish autonomously. Return whenever convenient to download synchronized F4V results on any device you rely on.

Batch support for teams

Process up to 5 files sized 1000 MB per batch without splitting queues manually. Mixed-format uploads convert together, producing consistent F4V audio with dependable progress tracking.

About ASF

How to open ASF files

Windows Media Player
Media Player Classic
Windows Media ASF Viewer
VLC Media Player

Technical details

An ASF file can wrap bit streams formed from various formats such as binary, JPEG still images, script commands, video, and audio. However it is principally used as a wrapper for audio and video files specifically WMA and WMV. The ASF format includes support f…

An ASF file can wrap bit streams formed from various formats such as binary, JPEG still images, script commands, video, and audio. However it is principally used as a wrapper for audio and video files specifically WMA and WMV. The ASF format includes support for metadata including content descriptors, and information for DRM use. Content Encryption is also supported requiring the use of a license key before the asf file can be played.

How to convert ASF to F4V

STEP 1

Upload your video file in the ASF format from your device, Dropbox, or Google Drive.

STEP 2

Select F4V as the output format and click Convert. Adjust optional settings if needed.

STEP 3

Download the converted video file. Each file stays available for up to 5 downloads.

Your data, our priority

  • 256-bit SSL encrypted uploads and downloads
  • Automatic file deletion shortly after conversion completes
  • Reliable global infrastructure for consistent performance