massfileconverter

Convert AVI to MP4for email

Free. No sign-up. Your files never leave this device.

Convert to
Size
Drag videos here

Up to 2 GB each. MP4, MOV, WebM, MKV, AVI.

How it works

  1. 1

    Drop your videos

    Add as many as you like. They stay on your device.

  2. 2

    Check the settings

    We've already picked the right format for email. Change it if you need to.

  3. 3

    Download

    Grab each file, or all of them in one zip.

What email accepts

Max file size
15 MB
Best resolution
854 × 480 (480p) or 1280 × 720
Video codec
H.264
Audio codec
AAC 64 kbps mono/stereo

Gmail allows 25 MB and Outlook 20 MB, but 15 MB is the safe size so nothing bounces. Files are shrunk as far as sensible.

Questions

Are my files uploaded anywhere?

No. Conversion runs inside your browser, so your videos never leave your device. That's also why there's no file size paywall.

Is it really free?

Yes. No sign-up, no watermark, no limit on how many files you convert.

How big can my files be?

Up to about 2 GB each. Very large files depend on how much memory your device has.

Why is it slower on my phone?

Your device does the work, so a laptop will usually be quicker than a phone. Keep the tab open until it finishes.

What's the best format for email?

Email plays H.264 video best. Keep files under 15 MB and use 854 × 480 (480p) or 1280 × 720.

All tools

Convert video

Shrink video