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Convert a Video to MP4

Turn a MOV, AVI or VOB file into an MP4 that plays almost everywhere. Pick one file, click one button and download the result. The video stays on your device.

Merge videos
Works with
  • MP4
  • MOV
  • AVI
  • VOB
  • Runs in your browser
  • 100% free
  • Private

Popular tools

How to convert a video to MP4

  1. Pick your video

    Choose one MOV, AVI, VOB or MP4 file from your computer or phone and drop it onto the page.

  2. Click Convert to MP4

    Adapterry converts the file inside your browser tab. Keep the tab open until it finishes.

  3. Preview and save

    Play the result on the page to check it, then download your MP4.

Why people use Adapterry

  • Nothing is uploaded

    Your videos are processed in your browser and never leave your device.

  • No account needed

    Open the page and start. No email, no password.

  • No watermark

    Your MP4 comes out clean, with no logo stamped on it.

  • Works offline

    Once the page and video engine have loaded, you can keep working without an internet connection.

Supported formats

Add MOV, AVI, VOB or MP4 files, or a mix of them. You always get back one MP4 with H.264 video and AAC audio.

InMP4MOVAVIVOBOutMP4
See all formats

Why convert to MP4

MP4 with H.264 video and AAC audio is the format almost every device and app expects. Windows PCs, Android phones, most smart TVs and most upload forms accept it without extra software.

When Adapterry converts a video, it uses H.264 at CRF 23 with the veryfast preset, and AAC audio at 128 kbps stereo. That gives a good balance of quality and file size. Videos larger than 1920x1080 are scaled down to fit, and frame rates above 60 fps are capped at 60.

Questions and answers

Which files can I convert to MP4?

You can convert MOV, AVI and VOB files, and you can also run an MP4 through it. More input formats are planned.

Do I need to install anything?

No. The converter runs in your web browser. Once the page and video engine have loaded, it even keeps working offline.

Does the converted video get a watermark?

No. Your MP4 comes out clean, with no logo or text added.

Can I convert a video on my phone?

Yes, for smaller clips. Long or large videos need more memory than most phones have, so use Chrome or Edge on a desktop computer for those.

What should I do if the conversion fails?

A failed job usually means the browser ran out of memory. Close other tabs, try a shorter video, or switch to Chrome or Edge on a desktop computer.