Video format
What is a .asf file?
Advanced Systems Format, Microsoft's container for streaming media and the wrapper around WMV and WMA. It handles live streams and DRM well, and most non-Microsoft players don’t open it.
fileclay opens and writes ASF
When to use ASF
- Best for
- Legacy Windows streaming files.
- Advantages
- Lets you open old Windows streaming recordings.
- Disadvantages
- Rare in current devices and players.
Convert ASF files
From ASF
All 46 output formats: .mp4, .webm, .mkv, .avi, .mov, .gif, .m4v, .mpeg, .mpg, .ts, .m2ts, .mts, .m2v, .mxf, .ogv, .flv, .vob, .wmv, .divx, .3gp, .3g2, .ivf, .mp3, .wav, .m4a, .m4b, .ogg, .oga, .opus, .aac, .flac, .aiff, .aif, .wma, .ac3, .mka, .caf, .au, .tta, .wv, .mp2, .png, .jpg, .jpeg, .webp, .bmp
Conversions run in your browser. Files aren’t uploaded.
Questions about ASF
How do I convert my files to .asf?
Open the fileclay converter, drop your file in and pick .asf as the output format. It runs inside your browser with WebAssembly, so nothing is uploaded, there’s no account and no watermark.
Which formats can I convert ASF files into?
fileclay can write 47 formats from a ASF file, including MP4, WebM, MKV, AVI, MOV and GIF. Pick any of them as the output format when you drop the file in.