How to Compress a Video to Fit an Email Attachment Limit

Drop the video into the in-browser video compressor, choose 480p and the Balanced quality setting, and keep the audio track. That typically cuts a phone video by 50 to 80 per cent, which is usually enough for the 25 MB limit on Gmail and the 20 MB limit on Outlook. The video is re-encoded to H.264 MP4 by ffmpeg running inside your browser, so it is never uploaded.

Available free in the United Kingdom, United States, Ireland, Canada, Australia and across the EU. Because files are processed in your own browser and never uploaded, no personal data crosses a border, which keeps use consistent with UK GDPR, EU GDPR and CCPA/CPRA expectations.

Frequently asked questions

How much smaller will my video get?

Dropping to 480p with the Balanced setting typically removes 50 to 80 per cent of the file size, depending on the source. Footage that is already heavily compressed will shrink less.

Will compressing the video remove the audio?

Not unless you choose to. The audio track is kept by default and re-encoded to AAC at 128 kbps. There is a checkbox to drop it if you want a silent file.

Why does it take a few minutes?

The H.264 encoder runs as single-threaded WebAssembly in your browser tab rather than on a server. It is slower than a server-side encoder, and in exchange your video is never uploaded anywhere.