DivX to ASF Converter

Convert DivX to ASF Online

DivX is an MPEG-4 Part 2 (ASP) video, usually wrapped in an AVI container with MP3 audio. ASF (Advanced Systems Format) is Microsoft's streaming container — the foundation under Windows Media Video (WMV) and Windows Media Audio (WMA). This re-encodes your DivX into an ASF file for older Windows Media Player and Windows-centric workflows. By default xconvert writes H.264 video with WMAV2 audio into the ASF container; switch the Video Codec to WMV 2 if you need a file the classic Windows Media Player will recognize as Windows Media Video.

How to Convert DivX to ASF

1. Upload Your DivX File: Drag and drop or click "+ Add Files" to load one or more .divx files. Files are uploaded over an encrypted connection and deleted automatically after a few hours.
2. Set the Video and Audio Codec: Open Advanced Options. ASF defaults to H.264 video and WMA v2 audio. For legacy Windows Media Player compatibility, change Video Codec to WMV 2.
3. Tune Quality or Size (Optional): Pick a Quality Preset (default "Very High"), set a Specific file size, or change the Video resolution with a preset or a custom Width x Height. Use Trim to keep only a time range.
4. Convert and Download: Click "Convert" and download your ASF file. No sign-up, no watermark.

DivX vs ASF — What Changes in This Conversion

Frequently Asked Questions

What is the difference between an ASF and a WMV file?

They use the same container. ASF is the underlying Advanced Systems Format; a file is given the .wmv extension when it carries Windows Media Video (and WMA audio), and .wma when it is audio only. Anything else in the container keeps the generic .asf extension. If you need a file old Windows Media Player treats as Windows Media Video, set the Video Codec to WMV 2.

Will I lose quality converting DivX to ASF?

Yes, a little. DivX is already a lossy MPEG-4 video, and re-encoding it into ASF means a second lossy pass (generation loss). Choosing the "Very High" Quality Preset keeps the loss small, but you cannot recover detail the original DivX already discarded. If preserving maximum quality matters, keep the resolution unchanged and pick a high quality preset rather than a small target file size.

Should I use H.264 or WMV 2 for the ASF output?

Use WMV 2 if the goal is genuine Windows Media compatibility — it is what classic Windows Media Player expects inside an ASF/WMV file. Use the default H.264 if you just need the ASF container but want better compression and quality at the same size; modern players that read ASF will still play it. For anything that has to play everywhere, neither is ideal — see the next question.

Is ASF the right target, or should I convert to MP4 instead?

Both DivX and ASF/WMV are legacy, Windows-era formats. Convert to ASF only if a specific tool or old Windows Media workflow requires it. For phones, browsers, smart TVs, and editors, DivX to MP4 (H.264) is the universally compatible choice. If you already have ASF files you want to modernize, ASF to MP4 goes the other way.

How do I open or play an ASF file?

Windows Media Player opens ASF natively on Windows. VLC plays ASF on Windows, macOS, and Linux. Because ASF predates most mobile and web players, ASF files generally will not play in browsers or on phones without a dedicated app — another reason MP4 is the safer choice for sharing.

Are my files private during conversion?

Yes. Files are uploaded over an encrypted connection, processed on our servers, and deleted automatically after a few hours — no sign-up, no watermark, never shared or made public. In our testing, a standard-definition DivX clip converts to ASF in a few seconds; the main wait on large files is upload time, not processing.