Compress Video for Email
Get any video under Gmail and Outlook's 25 MB attachment limit — compressed privately on your device.
Gmail and Outlook both cap attachments at 25 MB — and a modern phone blows past that in about fifteen seconds of 4K footage. When the video must arrive as a real attachment (not a cloud link that expires, needs permissions, or gets blocked by a firewall), the file has to actually fit.
This tool works backwards from the limit: it measures your video's length, calculates the exact bitrate that fits your target, and re-encodes to land safely under it. The result is a standard MP4 any recipient can open. Nothing is uploaded during compression — the file goes from your device straight into your email draft.
How to compress video for email online
- 1Drop your video into the box above.
- 2Choose 25 MB for Gmail/Outlook, or 10 MB if the recipient's system is stricter.
- 3Click Compress and wait for processing to finish.
- 4Download and attach the file to your email.
Frequently asked questions
What's the attachment limit for Gmail and Outlook?
Both cap attachments at 25 MB. Note that email encoding adds ~33% overhead, so mail providers may count your 25 MB file as ~33 MB — if an attachment bounces, re-compress at the 10 MB setting for safety.
Why not just use a Google Drive or WeTransfer link?
Links expire, require permission settings, and are blocked by some corporate mail filters. An attachment always arrives and always opens. For anything under a few minutes of video, compressing to attachment size is the more reliable path.
How much video fits in 25 MB?
Around 2–4 minutes at watchable quality with this tool's settings. For longer content, trim to the essential section first, or accept softer image quality.
Is my video uploaded to your servers?
No — compression runs entirely in your browser. Your video never touches a server until you attach it to your own email.
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