Xvid to ASF Converter
Processing entirely on your device — large files may take a moment.
Xvid is the open-source DivX competitor — the other MPEG-4 ASP encoder behind a decade of movie downloads. Converting ASF to MP4 unlocks old corporate and training videos on modern devices.
iLoveConverter processes everything locally on your computer, which makes it private and fast: no upload wait, no server storage, no limits. Add as many files as you like — batch conversion is built in.
How Xvid compares to ASF
| Xvid | ASF | |
|---|---|---|
| Compatibility | ffmpeg, VLC, every player | Windows-centric |
| Best for | Legacy download migration | Legacy Windows streaming files |
How to convert Xvid to ASF
- 1
Select your files
Drag & drop your Xvid files onto the area above, or click to browse. You can add multiple files at once for batch conversion.
- 2
Convert instantly
Click "Convert to ASF". The conversion runs entirely inside your browser using WebAssembly — no upload, no queue, no waiting.
- 3
Download results
Download each converted ASF file individually, or grab everything at once as a ZIP archive.
About the Xvid format
Xvid is the open-source implementation of the same MPEG-4 ASP profile DivX commercialized — after the original was open-sourced following a legal scuffle, Xvid became the encoder of choice for a decade of scene releases and personal rips.
Identical migration path as DivX: decode through ffmpeg, re-encode to H.264. The video quality at its usual bitrates survives the trip better than DivX's worst files, thanks to Xvid's tunable quantization.
+ Strengths
- ✓Open-source and configurable
- ✓Enormous existing content corpus
- ✓Decodes via ffmpeg everywhere
! Limitations
- −Same ASP-era limitations as DivX
- −Packed bitstream quirks in some files
- −Development ended years ago
About the ASF format
ASF (Advanced Systems Format) is Microsoft's streaming container from the Windows Media era. WMV video and WMA audio live inside it, often with DRM in its commercial life. It carries the same 188-packet-ish streaming DNA as other late-90s containers, plus Microsoft-specific metadata and marker tracks.
Outside Windows it is effectively unreadable without special tools. The exit strategy is MP4: video re-encodes to H.264, audio to AAC, and the file joins the modern world. ASF files carrying DRM-protected streams remain locked — only unprotected content converts.
+ Strengths
- ✓Native Windows Media streaming container
- ✓Holds WMV/WMA with rich metadata
! Limitations
- −Non-Windows support is poor
- −DRM-protected files are locked
Why convert Xvid to ASF?
Think of it as moving your file to the container that fits the job. Same ASP-era limitations as DivX ASF works differently: Native Windows Media streaming container If any of that sounds like your task, run the conversion — it takes seconds and nothing leaves your device.
Frequently asked questions
Is this Xvid to ASF converter really free?
Yes — completely free, with no sign-up, no watermark and no daily conversion limits. The site is supported by advertising.
Are my files uploaded to a server?
No. The conversion runs entirely inside your browser using WebAssembly, so your files never leave your device — that is what makes it instant and private.
Does it work on Windows, Mac, iPhone and Android?
Yes. Anything with a modern browser works: Windows, macOS, Linux, Android and iOS. No software installation is required.
Is there a file size limit for Xvid to ASF?
The only limit is your device's memory, since nothing is uploaded. Files up to a few hundred megabytes work fine on a modern desktop browser; very large files simply take a little longer.
Will the audio track be kept?
Yes. The audio is carried over and re-encoded to the standard audio codec of ASF, staying in sync with the video. If your Xvid file has multiple audio tracks, the first one is used.
Does converting Xvid to ASF re-encode my video?
Yes. The video is decoded and re-encoded with the settings chosen by the quality slider, which is what allows the format and size to change. For an archival copy, keep higher quality; for sharing, lower quality gives a much smaller file.