Compress video for Gmail
Gmail caps attachments at 25 MB — anything bigger becomes a Drive link. Compress your video to exactly 25 MB and attach it directly.
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MP4, MOV, WebM… — processed 100% on your device
Target size
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🔒 Your video never leaves your device. No upload, no signup, no watermark.
Why 25 MB?
Gmail allows 25 MB total per email — message text, other attachments, and encoding overhead all count. Go even slightly over and Gmail silently converts your attachment into a Google Drive link, which many recipients never open (or can't, behind corporate firewalls).
Targeting ~24 MB with VidSizer's 4% safety margin keeps you safely inside the real-world limit, so your video arrives as an actual attachment that plays inline.
FAQ
How do I compress a video to exactly 25 MB for Gmail?
Select the Gmail 25 MB preset above and hit Compress. VidSizer computes the exact bitrate for your clip and verifies the output is under 25 MB before you download it.
Why does Gmail turn my video into a Drive link?
Any email over 25 MB total triggers it. Compressing to just under 25 MB keeps the video as a real attachment.
Is my video uploaded anywhere?
No. Everything runs in your browser. No upload, no account, no watermark.