Compress a video for email

To email a video as an attachment, it has to be under 25 MB for Gmail or 20 MB for Outlook.com. Choose it here and press Compress video: you get an MP4 that fits, at the sharpest picture that size allows, compressed on your device without uploading it.

A free tool from Clyper, the AI clipping tool that turns long videos into captioned vertical clips.

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An example: 8 seconds of IMPAULSIVE

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MP4, MOV or WebM, or drop one above. It's compressed on your device: nothing is uploaded.

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MP4 (H.264), no watermark. Free, and nothing to sign up for.

How to compress a video for email

Choose the video, or drop it on the page: from your phone, a camera or a screen recording.
Pick the size for your email: Email (25 MB) for Gmail, Custom 18 MB for Outlook.com, 10 MB for a work account.
Press Compress video, then download the MP4.
Attach it to the email like any other file.

Attachment limits, and what fits

Email attachment size limits by provider
Email	Attachment limit	Pick here
Gmail	25 MB	Email (25 MB)
Outlook.com, Hotmail	20 MB, counting the whole email	Custom, 18 MB
Work email on Exchange	10 MB by default (your admin can change it)	10 MB
Google Workspace	Set by your admin	Ask, or try Email

And about how long a 30 fps video fits in 25 MB while still looking clean:

1080p (1920 × 1080): about 1 min 8 s
720p (1280 × 720): about 2 min 26 s
480p (854 × 480): about 4 min 54 s
Smaller, at the lowest usable quality: up to 16 min 50 s

Attach it, or send a link?

An attachment plays right in the email, needs no account, and stays in the other person's inbox. A link (Gmail adds a Google Drive one by itself past 25 MB; for Outlook, Microsoft suggests OneDrive or Dropbox) keeps the full quality and has no size limit, but they have to open it, and it only works while you keep it shared.

So: a short video for someone to watch now, compress and attach. A long one, or one that has to stay full quality (footage for an editor, a wedding film), send as a link. For the whole picture on shrinking files, read how to compress a video.

When the video won't fit

A long video squeezed into 25 MB comes out blurry. The part that matters, cut out with the video trimmer, fits sharp. To send a whole talk or presentation, consider the best minute of it as a clip; that's what Clyper makes from a long video.

Questions

How big a video can I email?

25 MB in Gmail, 20 MB in Outlook.com (for the whole email, text and all), and by default 10 MB from a work account on Exchange. Under those, the video goes as an attachment the other person can play straight away.

How do I compress a video to email it?

Choose the video here; Email (25 MB, Gmail's limit) is already picked. For Outlook.com, pick Custom and type 18; for a work account, pick 10 MB. Press Compress video, download the MP4 and attach it.

What happens if the video is too big for Gmail?

Gmail takes it off the email and puts a Google Drive link in its place. That works, but the other person has to open Drive, and has to have access. Compressing it under 25 MB keeps it attached.

How long a video can I email?

In 25 MB, about a minute at a clean 1080p, two and a half minutes at 720p, or five at 480p. Longer videos still fit at a smaller picture; past that, cut the part that matters with the video trimmer.

Will they be able to play it?

Yes. It's an MP4 with H.264 video and AAC sound, which plays on every phone and computer.

Is my video uploaded to compress it?

No. Your browser compresses it on your device and saves it there. The only place it goes is the email you attach it to.

Sources

Read on November 7, 2026.

Sharing a long video? Share the best of it

Paste a YouTube link and Clyper finds the best moments of a long video and makes each one a short vertical clip with captions: up to 30 clips, small enough to send anywhere.

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