AVI → Gmail / Email
Compress AVI for Gmail / Email
AVI attachments are a double problem for email: the files are huge by modern standards (often hitting Gmail's 25 MB cap at 30-60 seconds of 720p), and many Outlook clients show AVI as an unknown file type with no inline preview. The fix is the same two-step every page here does for legacy formats — transcode to MP4 H.264 (universally previewable in Gmail/Outlook/Yahoo inline) and compress to fit the 25 MB cap. If you're mailing old Windows screen recordings or archive footage, this path is especially useful because AVI's inefficient compression leaves a lot of size reduction on the table for free.
Where do you want to share your video?
How to compress AVI for Gmail / Email
- 1Drag your .avi file onto the upload zone above (or browse to it).
- 2Gmail / Email is already selected — we'll target 23 MB to stay safely under the 25 MB cap.
- 3Optionally trim to a highlight clip or switch to H.265 for 30-50% smaller files at the same quality.
- 4Download the compressed MP4 and share it on Gmail / Email. Source file auto-deletes from our servers after 1 hour.
What to know about AVI → Gmail / Email
- Outlook for Windows often can't preview AVI at all — MP4 shows inline on every major client.
- Corporate email policies sometimes block AVI entirely as a security measure.
- Google Drive link backup shows in email body when attachments exceed size — useful if IT blocks > 10 MB.
- AVI's header puts metadata at the end, making it un-streamable; our MP4 output uses faststart.
The compression math
A 1-minute 1080p AVI = ~180 MB. Gmail 23 MB target − 128 kbps audio = ~2.9 Mbps video. H.264 1080p CRF 26 = ~22 MB. Plays in Gmail's inline preview on every desktop browser.
About AVI files
AVI (Audio Video Interleave) is a legacy Microsoft video format from the 1990s, still commonly produced by screen recording software, older camcorders, and some Windows applications. AVI files are typically 3 to 5 times larger than modern MP4 files at the same quality because they use older, less efficient compression (or no compression at all). CompressYourVideo.com converts your AVI to a compressed MP4 with H.264 encoding, dramatically reducing file size while maintaining visual quality. A 500MB AVI screen recording might compress to 50MB as an MP4. The compressed output is compatible with every modern platform, unlike AVI which most social media sites and mobile devices refuse to play.
About Gmail / Email
Compress videos to send by email. Gmail limits attachments to 25MB and most email services cap at 20-25MB. Our tool fits your video within these limits.
Related compression tools
Or compress AVI for a different platform