Compress Video for Email
Free video compressor for email attachments. Shrink any video to fit Gmail's 25MB limit or Outlook's 20MB limit. Runs in your browser with no signup and no server uploads.
Most phone videos are 50-500MB, far too large for email. Use our free video compressor to reduce file size while keeping good visual quality. Everything runs locally in your browser using WebAssembly. Your files never leave your device.
Ready to compress?
Open the video compressor, upload your file, pick 720p + Medium quality, and download an email-ready MP4.
Compress Video NowFree, no signup, works in any browser
Email Attachment Size Limits (2026)
| Email Provider | Max Attachment | Recommended Settings |
|---|---|---|
| Gmail | 25 MB | 720p, Medium quality |
| Outlook.com | 20 MB | 720p, Medium quality |
| Yahoo Mail | 25 MB | 720p, Medium quality |
| Outlook (Exchange) | 10 MB | 480p, Medium quality |
| Apple Mail | 20 MB | 720p, Medium quality |
To maximize compatibility across email providers, compress to under 20MB. Corporate Exchange servers often have a 10MB limit. See our complete file size limits reference for all platforms.
How to Compress Video for Email
- 1Open the video compressor
Go to our video compressor. It loads FFmpeg in your browser so nothing gets uploaded.
- 2Upload your video
Drag and drop your video file or click to browse. Accepts MP4, MOV, AVI, MKV, WebM, and most other formats.
- 3Pick email-friendly settings
For Gmail/Yahoo (25MB limit): choose 720p resolution and Medium quality. For Outlook/Exchange (10-20MB): use 480p and Medium. Trim first with the video trimmer if it is still too large.
- 4Download and attach to email
Click Compress, wait for processing, and download the MP4. Attach it to your email. The recipient can play it on any device.
Tips for Emailing Videos
- 1.Trim first. Remove unnecessary start/end footage with the video trimmer before compressing. Shorter clips mean smaller files.
- 2.Target under 20MB. This fits every major email provider. Gmail allows 25MB, but Outlook and Apple Mail cap at 20MB.
- 3.Use 720p for most emails. Full HD (1080p) is unnecessary for email. 720p looks great on phones and laptops while keeping file size manageable.
- 4.Convert to GIF for short clips. For clips under 5 seconds, a GIF embeds directly in most email clients without needing a separate attachment.
Estimated Output Size by Duration
Approximate MP4 file sizes after compression at Medium quality. Actual results vary based on video content and motion.
| Duration | 480p | 720p | Fits in email? |
|---|---|---|---|
| 10 seconds | ~1-2 MB | ~2-4 MB | Yes |
| 30 seconds | ~3-5 MB | ~6-12 MB | Yes |
| 1 minute | ~5-10 MB | ~12-25 MB | 480p only |
| 3 minutes | ~15-30 MB | ~35-70 MB | Trim first |
For videos over 1 minute, trim to the key section with the video trimmer or use 480p to stay under 20MB.
Frequently Asked Questions
What is the email attachment size limit for Gmail?
Gmail allows attachments up to 25MB. For larger files, Gmail automatically offers to share via Google Drive instead. Compressing your video to under 25MB lets you send it as a regular attachment.
What is Outlook's video attachment limit?
Outlook.com allows up to 20MB per attachment. Microsoft Exchange accounts may have a 10MB limit set by your organization. Use our video compressor to get under 20MB for maximum compatibility.
What settings should I use to compress video for email?
Use 720p resolution and Medium quality for short clips (under 1 minute). For longer videos, use 480p and Medium quality. Test the file size before attaching.
Is my video uploaded to a server?
No. The compressor runs entirely in your browser using WebAssembly (FFmpeg). Your video files never leave your device.
What video format is best for email?
MP4 with H.264 encoding is the most compatible format. Our compressor always outputs MP4, which plays on all devices and email clients including Gmail, Outlook, Yahoo Mail, and Apple Mail.
How long does compression take?
It depends on the video length and your device. A 30-second clip typically compresses in 10-30 seconds. Longer videos take proportionally longer.
Compress your video for email now
No signup, no server uploads. Your files stay on your device.
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