Gmail attachment helper
Compress video for Gmail in your browser.
Shrink a video before attaching it to Gmail. Local processing keeps the source file on your device.
Gmail video compressor
Create a smaller MP4 for attachment workflows.
Your selected video is processed in this browser tab. It is not uploaded to a conversion server.
Ready.
Attachment limits are strict
Gmail attachment workflows commonly hit file-size limits. A smaller MP4 can help, but long videos may still be better as links.
Best settings and limits
Best first try
Use 720p for short videos. Use 480p when you need a much smaller attachment.
When this may fail
Exact attachment acceptance depends on provider rules and how the recipient receives the file.
Privacy boundary
The selected video file stays on your device while the tool creates the output.
Frequently asked questions
Can I compress a video for Gmail without uploading it?
Yes. This tool processes the selected video in your browser tab.
Is this different from email 25MB?
It uses the same compression engine but explains the Gmail attachment workflow.
Should I attach or share a link?
For long videos, a link is usually more reliable than an attachment.