massfileconverter

Shrink MOVfor YouTube

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

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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 YouTube. Change it if you need to.

  3. 3

    Download

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

What YouTube accepts

Max file size
256 GB
Best resolution
3840 × 2160 (4K) or 1920 × 1080 (1080p)
Video codec
H.264 / VP9 / AV1 (High Profile)
Audio codec
AAC-LC 384 kbps stereo

YouTube keeps your frame rate (24, 30 or 60 fps) and standard colours. Upload the highest quality you have.

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 YouTube?

YouTube plays H.264 / VP9 / AV1 (High Profile) video best. Keep files under 256 GB and use 3840 × 2160 (4K) or 1920 × 1080 (1080p).

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