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Compress video for Gmail

Fit a video under Gmail’s 25 MB attachment limit so it arrives as a real attachment, not a Drive link.

Gmail limit · 25 MBFiles stay on your device

Drop a video to send on Gmail

See which size limits apply to it, then export an MP4 that fits.

Any media file this browser’s engine can read.

How to send a large video in Gmail

Gmail allows up to 25 MB of attachments per email. Anything bigger is swapped for a Google Drive link that the recipient has to open separately. Compress the video under the limit here, then attach it directly.

  1. Step 1

    Choose a video
    Pick the video you want to prepare for Gmail.
  2. Step 2

    Choose a size
    Select the Gmail limit that applies to you.
  3. Step 3

    Download the MP4
    Save the video after its final file size is verified.

What to expect

What happens
The video is re-encoded to an MP4 with H.264 video and AAC audio, the most widely playable combination. Bitrate and resolution are chosen from the size budget, and the finished file is measured before you can download it.
Good to know
The 25 MB limit covers every attachment in the message together, and encoding adds a little overhead, so the target leaves some room. Recipients on other email services may have lower receive limits.

Gmail is a trademark of Google, which does not sponsor or endorse Mastershot. Illustrations are simplified, and limits can change.

Private by design

Your video stays on your device

Mastershot processes your file locally in this browser. It does not need to be uploaded to a server, and you do not need an account to use the tool.

  • No upload
  • No signup
  • No watermark

Questions

Gmail lets you send up to 25 MB of attachments per email. Larger files are uploaded to Google Drive and shared as a link instead.

Email encoding makes attachments about a third larger in transit, and every attachment in the message counts. Choose a smaller target if you are sending several files.

Gmail previews most MP4 files with H.264 video. That is the format this page exports.