mynify

Make a video smaller for email. Fits the attachment limit.

Email bouncing your video? Drop it here for maximum compression that fits Gmail and Outlook limits — privately, on your device.

  • Never uploaded
  • No limits
  • No signup
  • Free forever

Email hates big videos

Email was never built for large files. Gmail caps attachments at 25MB, Outlook at around 20MB, and plenty of workplace servers are stricter still. The limit counts the entire encoded message, so a “20MB” video can tip a 25MB inbox over the edge. Go past it and Gmail silently swaps your attachment for a Drive link — or the message just bounces.

Mynify shrinks the video on your device so it slips comfortably under those limits and arrives as a real, downloadable attachment — with nothing uploaded to us along the way.

How the email preset works

This page uses the Super small setting — maximum compression — so even a few minutes of video can fit an attachment limit. Mynify re-encodes to a compact H.264 MP4 that opens on any mail client, phone, or computer, and shows you the estimated size before you send. If it’s still a touch large, switch to a stricter setting or trim the clip.

Where your browser supports it, compression runs on your device’s hardware encoder for speed; otherwise a universal fallback engine handles it. Either way it’s a standard MP4 your recipient can just double-click.

Getting it under the limit

No signup, no watermark, no limits — and because it’s fully local, the video you’re emailing stays entirely on your device.

Frequently asked questions

What's the email attachment size limit?

Gmail allows up to 25MB per message, Outlook.com about 20MB, and many corporate mail servers cap at 10–25MB. Because the limit applies to the whole message (with encoding overhead), aiming for around 20MB or less is the safe bet — which is what the Super small setting targets.

What happens if I attach a video that's too big?

Gmail quietly converts it to a Google Drive link instead of a real attachment, and other providers simply reject the message. Compressing first keeps it a genuine attachment the recipient can download directly.

How small can it get without looking terrible?

The Super small setting compresses hardest, so quality is lower than the Balanced preset — fine for talking-head clips, screen recordings, and demos. For anything longer than a couple of minutes, trimming is the best way to keep it watchable at this size.

Is the video uploaded anywhere?

No. Everything runs in your browser, so the video you're emailing — which is often personal — never leaves your device or touches our servers.

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