Compress a video for email
Your video is too big to attach? Make it small enough to email in one step, with no settings to figure out.
How it works
- Choose your video.
- Press “Make it small enough to email”.
- Download and attach it.
Why 18 MB?
Gmail and Yahoo allow 25 MB of attachments. Microsoft’s own pages disagree on Outlook: one says 25 MB, another says 20 MB for internet email accounts and 10 MB by default for Exchange (business) accounts. Sending a file by email also makes it bigger. The email standard, RFC 2045, says about 33 percent, and with line breaks we measured 36.8 percent. Aiming under 18 MB keeps a message at about 24.6 MB after that, under 25 MB, so it should fit Gmail and Yahoo. It can still be too big for a lower limit, so check yours. The guide below has the sources and our measurements.
We work out the right resolution and quality for your video’s length, compress it, then measure the actual file. If it’s even slightly over, we automatically make another pass. We only say “under 18 MB” when it really is.
Long videos
Some videos are simply too long to fit in an email with watchable quality. We tell you that before you start, instead of producing a blurry mess. This tool can’t cut a video shorter, so for those, use a shorter video or share a link from a cloud drive instead.
Questions
Is my video uploaded anywhere?
No. The conversion runs inside your browser using your own device. The file is never sent to our server or anyone else.
Which option should I pick?
Leave it on Balanced. “Better quality” keeps more detail when the video is short enough to allow it. “Fast” uses a smaller picture (up to 720p) and finishes sooner.
Will it play on the recipient’s phone or computer?
Yes. The result is a standard MP4 (H.264 video, AAC sound), the most widely supported video format.