UtilSlateSearch toolsCtrl K

AVI to MP4 Converter

Turn AVI videos from cameras and dashcams into MP4.

Picture and sound

Picture and sound are copied as they are when the new format allows it (fast, nothing lost). This converts only what older devices can’t play, such as Dolby Digital sound.

AVI (H.264, Motion JPEG or uncompressed), several at once

Drop more files anywhere on this page, or

    Runs on your device. No upload wait.

    What you get

    • Camera and dashcam AVIs
    • Fast when possible

    Questions

    Why can’t it convert my AVI?

    AVI is only a container; what matters is the video inside. Old downloads usually hold DivX or Xvid (MPEG-4 Part 2), which no browser can decode, so they can’t be converted here. Desktop apps like HandBrake or VLC can. AVIs from cameras, dashcams and security recorders (H.264 or Motion JPEG) work.

    Is quality lost?

    Not for H.264 AVIs without B-frames: the frames are copied into the MP4 as they are. Motion JPEG, uncompressed video and H.264 with B-frames are re-encoded at a high quality setting.

    What about the sound?

    MP3 and AAC sound is copied as it is; PCM (uncompressed) sound is converted to AAC. Other kinds are left out, and the file list says so.

    Is there a size limit?

    Up to 4 GB per video on a computer (1 GB on a phone). Files are read in pieces and the result is written to your browser’s own storage, so even long videos work; they just take longer.

    Are my videos uploaded anywhere?

    No. Your videos are opened and processed on your device, and the results are saved straight back to it. Nothing is uploaded. How to check.

    Is it free? Do I need an account?

    It is free to use and there is nothing to sign up for. There are no watermarks and no daily limits.

    Missing something, or not working as it should? Tell us