Strict inboxes
A conservative option for managed mail servers.
Compress video for email
Make a video small enough to attach to Gmail, Outlook, and other inboxes. Choose a 10, 20, or 25 MB target and compress it privately in your browser.
Drop a video here
Video attachment size limits for email
Limits vary by provider and workplace. A 20 MB target works across more inboxes; personal Gmail accepts up to 25 MB in total attachments.
Outlook
A common Outlook and iCloud Mail limit.
Gmail
The personal Gmail total attachment limit.
How to compress a video for email
Add your video
Choose an MP4, MOV, WebM, MKV, or other common video file from your device.
Choose an email limit
Use 20 MB for Outlook, 25 MB for personal Gmail, or 10 MB as a conservative fallback.
Compress and attach
Download the smaller file, attach it to your message, and send it without a cloud-storage detour.
Your video stays private
Client videos and internal screen recordings stay private. Compression happens locally, so there is no server copy to delete later.
Built for an exact size
Pick the attachment limit instead of guessing at a quality percentage. The result is checked against that byte cap before download.
Share a Tella link instead
Record your screen and camera with Tella, polish it with AI, and send a hosted link that never runs into an attachment limit.
Frequently asked questions
Add the video above, choose the size limit for the recipient's email provider, and click Compress. The browser re-encodes the video to fit that target, then gives you a smaller file to attach to your message.
It depends on the provider. Personal Gmail accounts allow up to 25 MB in total attachments, while Outlook and iCloud Mail commonly use a 20 MB limit. Work and school administrators can set different limits, so 10 MB is the conservative choice when you are unsure.
Choose the 25 MB Gmail preset and compress the file. The encoder leaves headroom below the nominal cap for the video container, so the downloaded result stays under the selected size.
Not as a normal attachment in most personal inboxes. You can compress it below the provider's limit or upload it to a video host and email a link. A hosted Tella link is usually the better option for longer videos because it preserves quality and gives the viewer instant playback.
Usually not. Formats such as MP4 and WebM already use video compression, so ZIP removes very little. Re-encoding at a lower bitrate or resolution is what meaningfully reduces the file size.
Reducing a video's file size removes some data. This tool spends the available size budget on the highest practical bitrate and keeps the source resolution whenever that bitrate can support it. A 20 MB target will preserve more detail than a 10 MB target for the same clip.
No. Compression runs locally with the video encoder built into your browser. Neither the original file nor the compressed result is sent to Tella.
Most common video files work, including MP4, MOV, WebM, MKV, and AVI. The result is MP4 where your browser supports it and WebM otherwise.