Compress Video for Email
Get your video under the 25MB attachment limit on Gmail and Outlook. Free, private, no upload.
Need batch processing or bigger files? Download Compresso for folders, big videos, and offline compression.
Most email services draw the line at 25MB of attachments per message. Gmail and Outlook both do. Go over, and your video either bounces or gets turned into a download link, which is fine for colleagues and confusing for everyone else.
This tool compresses your video to fit comfortably under 25MB, with a small margin for the way email counts attachment size. The bitrate is matched to the length of your clip, so a quick screen recording keeps its clarity instead of being squeezed by a fixed quality guess.
Because the compression runs in your browser, the video never gets uploaded anywhere. That matters when the attachment is a client deliverable or anything else you would not paste into a random website. Sending large files often? Compresso for Mac and Windows handles folders of videos offline.
Frequently Asked Questions
What is the email attachment size limit?+
Gmail allows 25MB of attachments per message, and Outlook.com allows 25MB as well. Some Google Workspace Enterprise Plus plans allow 50MB. The email preset here targets 23.8MB to stay safely under 25MB.
Why not just send a Drive or OneDrive link?+
Links work, but they add friction: permissions to fix, recipients who cannot open them, and files that never reach people behind strict firewalls. A real attachment that fits the limit just arrives.
My video is two minutes long. Can it really fit under 25MB?+
Usually, yes. The tool sets the bitrate from the video's length and drops resolution before dropping to an unwatchable bitrate. If your target is truly impossible without wrecking the video, it says so and gives you the closest honest result.
Does the compressed video play on any device?+
Yes. The output is a standard MP4 (H.264 with AAC audio) that plays on phones, tablets, and computers without extra software.
Try Other Free Tools
Sending large files often?
Download the app for Mac or Windows. Compress photos and videos offline. Personal is up to 200 files. Studio is unlimited.
Free to download • 100% offline