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MPG to MP4 Converter

Convert MPG and MPEG files to MP4 so footage from DVDs, old camcorders and TV captures plays on phones and uploads anywhere. Both .mpg and .mpeg files work here. Everything happens in your browser, so nothing is uploaded and no account is needed.

Drop your video here

or click to select a file

🔒 Your files never leave your device - 100% private & secure

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🌐Works Offline
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How to Convert MPG to MP4 Online for Free

  1. Select your MPG file

    Drag a .mpg or .mpeg file onto the upload area or click Select Video. The file stays on your device.

  2. Wait for the decoder

    MPEG-2 is not something browsers can decode, so about 9 MB is downloaded the first time you convert one. It is cached afterwards.

  3. Convert and download

    MP4 is selected automatically. Click Convert, then download the MP4 when it finishes.

Why convert MPG to MP4?

An .mpg file is usually an MPEG program stream: MPEG-1 or MPEG-2 video with MP2 audio, interleaved in the format designed for VideoCD and then for DVD. It is what disc rips, hard-disk camcorders, digital TV capture cards and older editing software all produced, and plenty of it is still sitting on external drives.

The format dates from an era when decoding was done in hardware, and that is the problem now. No browser decodes MPEG-2, phones generally refuse the extension, and while VLC will happily play these files, almost nothing you would want to upload to will accept one.

MP4 solves that completely, and the conversion usually shrinks the file considerably. MPEG-2 is an old and inefficient codec, so the same footage re-encoded to H.264 typically lands at a fraction of the size with no visible difference.

One quirk worth knowing: MPEG files often use non-square pixels. A DVD-sourced clip may be stored as 720x480 but meant to be shown wider than that, and players that ignore the flag show it squashed. The conversion reads the intended display size and writes the MP4 accordingly, so it looks right afterwards.

Frequently Asked Questions

What is the difference between MPG and MPEG?

Nothing. They are two spellings of the same extension, kept from when file names were limited to three characters. Both are handled identically here.

Why does it download something the first time?

No browser can decode MPEG-2 video, so converting one needs a decoder that is not built in. About 9 MB is fetched the first time and cached for later. It is code, not your video - the file itself never leaves your device.

Will the MP4 be smaller than the MPG?

Usually, and often by a lot. MPEG-2 needs far more data than H.264 for the same picture, so re-encoding a DVD-era file typically produces something several times smaller with no visible difference.

Why does my converted video look wider than the original did?

Because it is now correct. MPEG files store non-square pixels with a flag saying how wide to display them, and some players ignore that flag and show the video squashed. The MP4 has the intended shape baked in, so it looks the same everywhere.

Can it convert a VOB file from a DVD?

A .vob holds the same MPEG program stream, so many will convert here. Discs with copy protection will not, and neither will the multi-file structure of a full DVD - you would need a desktop ripper for that.