Compress a video for Outlook
Outlook refuses attachments over 20 MB, and a 20 MB video does not fit, because the file grows when the email is sent. Compress it to 14 MB here and it attaches directly, without a OneDrive link.
- Never uploaded
- No size limit
- No watermark
- Free
Keep this tab open and in front. Browsers slow down background tabs.
Quick answer: To compress a video for Outlook, drop the file into the tool at the top of this page and press "Compress video". iLoveAudioVideo does the work in your browser, so the file is never uploaded. It is free, with no sign-up, no watermark and no file size limit.
Updated
How it works
- Drop your videoMP4, MOV, WEBM or MKV, any size. It stays on your computer.
- Choose how"Smaller, same look" for a big saving without visible loss, or an exact size such as 10 MB. You see the result before you start.
- DownloadPreview the result, then save it. Exact sizes are checked before you download.
Why 14 MB and not 20 MB
Outlook's limit is 20 MB for Outlook.com and for Outlook with a personal email account. But an attachment grows by about a third when the email is encoded for sending, and Outlook counts the grown size. So a 20 MB video is refused, while about 14 MB fits with a little room for the text of the email. The size is checked here before you download.
Work and school accounts use a limit set by the organisation, which can be lower. If 14 MB still bounces, try 7 MB, or ask what your limit is.
What fits in 14 MB
A one-minute clip comes out at about 630p, sharp on a laptop or phone. A three-minute clip comes out at about 350p, and a ten-minute one at about 160p, which is very small. For anything long, cut it down first with the trimmer, or send a OneDrive link instead.
Private by design
Videos sent by Outlook are often for work. This tool never uploads your video; it is compressed inside your browser. The only place it goes is the email you send.
Measured, not promised
From our tests on a 2019 Intel MacBook, an Apple M1 and a Windows PC without a graphics card. See all results.
Why your video never leaves your computer
Online video tools upload your file to their servers, process it there, and send it back. That is slow for big videos and costs them money for every minute, so free plans cap your file size or add watermarks, and your video sits on someone else's computer.
Here your own computer does the work, inside this tab. Nothing is uploaded, so there is nothing to cap: no file size limit, no daily limit and no watermark.
Questions
Outlook offered to upload it to OneDrive instead. Why?
Because the file was over the attachment limit. Compressed to 14 MB, it attaches directly, so the recipient can open it without a Microsoft account or a link that expires.
Does this work for Gmail too?
Yes. Gmail allows 25 MB, so a 14 MB video fits there as well. See compress video for email.
Is it really free?
Yes. Your computer does the work, so a video costs us nothing to process. No account, no watermark, no limits.
Is my video uploaded?
No. It is processed inside this browser tab and saved straight back to your computer.
Which browsers work?
Recent Chrome, Edge and Safari on a computer. Chrome and Edge are fastest on most machines. Phones work for short videos.
How long does it take?
In Chrome, a one-minute 1080p video took 13–19 seconds on the laptops we tested and about 40 seconds on a computer without a graphics chip. Safari can be slower.
Can I close the tab while it works?
Keep the tab open and in front until it finishes. Browsers slow down background tabs.