ASF to FLV Converter

Convert ASF to FLV online, for free.



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Video Options
Choose a codec to encode or compress the video stream. To use the most common codec, select "Auto" (recommended). To convert without re-encoding video, choose "Copy" (not recommended).
Select a resolution for your video (width x height) in pixels.
Change the ratio between width and height, for example, 4:3 or 3:2
Change FPS (frames per second) of video
Video will be rotated clockwise.
Choose a file Browse
Upload a .srt or .ass subtitle file to be burned into your video.
Audio Options
Choose a codec to encode or compress the audio stream. To use the most common codec, select "Auto" (recommended). To convert without re-encoding audio, choose "Copy" (not recommended).
100% represents the original volume. To double the volume, increase it to 200%. To reduce volume by half, select 50%
Trim Settings
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Specify the end position of trim (HH:MM:SS). Leave at 00:00:00 to disable.



How to Convert ASF to FLV?

  1. Click the “Choose Files” button to select your ASF files.
  2. Click the “Convert to FLV” button to start the conversion.
  3. When the status change to “Done” click the “Download FLV” button

Easy to Use

Simply upload your ASF files and click the convert button. You can also batch convert ASF to FLV format.

Best Quality

We use both open source and custom software to make sure our conversions are of the highest quality. In most cases, you can fine-tune conversion parameters using “Advanced Settings” (optional, look for the icon).

Free & Secure

Our ASF to FLV Converter is free and works on any web browser. We guarantee file security and privacy. Files are protected with 256-bit SSL encryption and automatically delete after a few hours.


Advanced Systems Format (ASF) is a proprietary Microsoft product, which serves as a container for Windows multimedia content. Microsoft designed it for streaming and to be independent of systems and protocols. It supports chapters, captions, subtitles, metadata tags, streaming, and hardware players, but does not support menus.

 

How to open an ASF file?

It is best to use Windows Media Player to open an ASF file. Alternatively, VLC media player is a good choice too. Keep in mind that ASF can contain WMA and WMV files, which might display as the file extension of the ASF file.

 

Developed by: Microsoft

Initial release: 1995

Useful links:

https://en.wikipedia.org/wiki/Advanced_Systems_Format

https://docs.microsoft.com/en-us/windows/desktop/wmformat/overview-of-the-asf-format

Flash Live Video (FLV) is, as the name suggests, a type of Flash video. It is a popular format that delivers high-quality, well-synchronized multimedia content, primarily over the Internet. It is also a media container, and as such, uses codecs to compress file size. FLV uses the open standard ISO/IEC 14496-12:2008, also known as the ISO base media file format, which offers the advantage of flexibility and independence.

 

How to open an FLV file?

By default, FLV opens in Adobe products, namely Animate Creative Cloud (Animate CC) and Flash. It opens best in Adobe Flash version 7 and above. FLV does not support chapters or subtitles, but it does support metadata tags.

 

Since FLV is based on an open standard, it can open in many non-Adobe products. Other programs in which FLV can open include VLC media player, Zoom Player, RealNetworks RealPlayer Cloud, Eltima Elmedia Player, and others.

 

Developed by: Adobe

Initial release: 2003

Useful links:

https://en.wikipedia.org/wiki/Flash_Video

https://www.lifewire.com/flv-file

FreeConvert.com can convert your files to these related formats:


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