DAV MP4
Free online converter

Convert DAV to MP4

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DAV to MP4 converterFREE
Drop a .DAV file here
or pick one - we convert it to .MP4 and give you the file to download

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Tested on macOS, Windows & Linux
Last verified Oct 2026

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How to convert DAV to MP4

  1. Add your .DAV file - drop it in the box above or click to browse.
  2. Convert it to .MP4 in a few seconds.
  3. Download your new .MP4 file.

What to expect

  • Some Dahua firmware produces scrambled .dav files that FFmpeg and VLC cannot open - Dahua SmartPlayer or an OEM equivalent is required for those.
  • FFmpeg's -c copy remux copies the video data unchanged, so quality is identical to the source and conversion is near-instant.
  • For legal or insurance use, keep the original .dav file - re-encoding removes Dahua's tamper-detection watermark and may be challenged as evidence.

Frequently asked questions

Can I convert DAV to MP4 without quality loss?
Yes - use FFmpeg with -c copy to remux the stream directly into an MP4 container without re-encoding. VLC and HandBrake always re-encode, which introduces some quality reduction.
My DAV file won't open in FFmpeg or VLC. What now?
The file is likely a scrambled export from the DVR. Install Dahua SmartPlayer on Windows or Mac and use its Export function to produce a standard MP4.
Do Amcrest, Lorex, and Q-See recordings use the same format?
Yes - these brands sell rebranded Dahua hardware that produces the same DAV container. Dahua SmartPlayer and Amcrest Smart Player both open them without any special setup.
How long does conversion take?
An FFmpeg remux finishes in well under a minute for a 1-hour recording. VLC or HandBrake re-encoding takes roughly as long as the video's runtime.
Learn about the formats: .DAV · .MP4
Programs that convert DAV: HandBrake · Bigasoft Total Video Converter · HandBrake for Mac · HandBrake for Linux