Video Too Big to Send? Gmail, Outlook, WhatsApp and Discord

Our 60-second test clip, shot at 1080p like a typical phone video, was 122 MB. That is over every email limit and six times Discord's free limit, yet well inside what WhatsApp accepts as a file. So the first question is not how to shrink the video but where it is going. Each destination has its own limit and its own way around it, and compressing is only one of them.

Checked on 2026-10-22. Each limit is linked to its source at the end.

Gmail: the Drive link happens on its own

For personal Gmail accounts the attachment limit is 25 MB. Work and school accounts use whatever limit their Google Workspace administrator sets. If your attachments go over the limit, Gmail removes them and adds a Google Drive link to the email instead, so a large video still goes out, as a link to a copy stored in your Drive.

That link only helps if the recipient can open it. When you send, Gmail checks whether the recipients have access and asks you to change the sharing settings if they do not. With "Anyone with the link", the recipient does not need a Google account. If you keep the file private, people without a Google account cannot see it. The upload also counts toward your Google storage, which Drive, Photos and Gmail share.

Use the Drive link when the person needs the original quality, such as footage for someone who will edit it. Compress instead when they will only watch it on a phone, or when you would rather not leave a shared copy sitting in your Drive.

Outlook and Outlook.com: two numbers

Microsoft publishes two different figures. Its Outlook.com sending-limits page says the attachment limit is 25 MB per file, and that a file shared from OneDrive can be up to 2 GB. Its guide to sending large files from the Outlook apps says the limit is 20 MB for internet accounts such as Outlook.com or Gmail, and 10 MB by default for Exchange (business) accounts, counting the attachment and the message together.

If you are not sure which one applies to you, aim for under 20 MB. On a work account, ask whoever runs your email, because the administrator can change the 10 MB default.

Microsoft's guide also suggests zipping a file to make it smaller. That does little for video. In our test, a ZIP of the 122,384,903-byte MP4 came out at 122,381,183 bytes: about 4 KB saved, because MP4 video is already compressed. For video, the useful choices are a cloud link or a re-encoded, smaller copy.

WhatsApp: send it as a file

WhatsApp raised its file limit to 2 GB in 2022, up from 100 MB, according to its own announcement. At the bitrate of our test clip (16 Mbps), 2 GB holds about 16 minutes of 1080p video. On recent versions of the app, the attach menu has a Document option that sends any file, a video included, as a file rather than as a playable video in the chat.

If quality matters, the file route is the one to try first. If it does not, think about the person receiving it. A 900 MB video sent as a document is 900 MB on their phone too, downloaded over their data plan. A compressed copy of a few dozen MB plays just as well on a phone screen and arrives faster.

Compressing to a size limit

When a link is not an option and the file is too big, you need a smaller copy. Desktop editors can export one, and so can our Compress Video tool, which runs in your browser. It has a For email preset that aims for under 20 MB, and an Exact size limit option with buttons for 10 MB, 20 MB (Discord), 25 MB (Gmail), 50 MB and 100 MB, plus a box for your own number. The output is always an MP4 with H.264 video and AAC sound, and a Remove sound switch saves more space when the audio does not matter.

We gave it the 60-second, 1080p clip (16 Mbps, 122.4 MB on disk; the page lists it as 117 MB because it counts in 1,024-byte units) and picked 20 MB (Discord). Before starting, the page planned 1280×720 at 2.4 Mbps with an estimate of about 18.3 MB. The result was 19,285,419 bytes: a 720p H.264 MP4 with sound, still 60 seconds long, and under 20 MB however you count a megabyte. Our headless test browser had no built-in H.264 encoder, so the tool used its FFmpeg fallback, which took 233 seconds. Browsers that have the encoder use it instead; we did not time that case.

The test clip was a synthetic moving pattern with added grain, so real footage can land somewhat differently. The tool's code re-encodes up to two more times if the first result is over the limit, and the page warns you if the final file is still over.

Discord: the limit is checked before anything else

Since August 2026, Discord's free upload limit is 20 MB per file, up from 10 MB. Nitro Basic raises it to 50 MB and Nitro to up to 1 GB. Discord's help page also notes that it is experimenting with different limits, so some accounts may see larger ones.

The detail that matters most: Discord now checks the file size before any compression, on mobile as well as desktop. Earlier, the mobile app compressed first and told you afterward. Discord itself says Android users may hit the limit more often than before, because source files there tend to be larger. The mobile app's Video Uploads setting offers a Data Saver option for quicker uploads, but it does not get a 60 MB file past a 20 MB check.

Discord lists MP4 with H.264, HEVC or AV1 video as supported, so an H.264 MP4 plays in the chat. Without Nitro, that leaves two routes for a large clip: post a link to a cloud copy, or make the file itself smaller than 20 MB. Aiming for 19 MB leaves a little margin in case Discord counts a megabyte differently than your computer does.

Sources

• Gmail Help: Send attachments with your Gmail message
• Gmail Help: Send Google Drive attachments in Gmail
• Microsoft Support: Sending limits in Outlook.com
• Microsoft Support: Reduce attachment size to send large files with Outlook
• WhatsApp Blog: Reactions, 2GB File Sharing, 512 Groups
• Discord Support: File Attachments FAQ