Send a Large Video Without Losing Quality

📉 Why your videos arrive blurry

A minute of 4K video filmed on a recent phone often weighs a few hundred megabytes. To save bandwidth and storage, most messaging apps recompress videos sent the usual way: resolution and bitrate are reduced. The recipient gets a lighter file that looks fine on a small screen but loses detail on a TV, on a large monitor or in editing software.

Email rejects anything above 20 to 25 MB, and the “send as a file” option of some apps avoids compression but comes with its own size limit. For a wedding film, raw footage for an editor or a long screen recording, you need to send the file itself.

🎯 The original file, bit for bit

File Transfer does not touch the content of your file. The video is read from your device, cut into 64 KB chunks, sent over an encrypted connection that guarantees every chunk arrives in order, and written back identically on the recipient’s side. There is no re-encoding and no resizing: the received file is an exact copy, with the same format (MP4, MOV, MKV…), the same resolution and the same embedded metadata.

Because nothing is uploaded, no server imposes a size limit either: a 2 GB clip and a 50 GB project are handled the same way. The only requirement is that both browsers stay open until the end.

📋 Step by step

1. Open File Transfer on the device that holds the video, and select the file or drag it onto the page.
2. Copy the link that appears and send it to the recipient.
3. The recipient opens it and confirms. In Chrome or Edge on a computer, they choose where to save the video. The progress, speed and remaining time are shown on both sides.
4. Wait until the transfer shows as done before closing your page.

To send several clips at once, gather them in a ZIP archive first. Video files are already compressed, so the archive will not be much smaller, but you will only have one link to share.

⏱️ How long will it take?

The duration mainly depends on the slower connection: the sender’s upload or the recipient’s download. As a rough guide, at 10 MB/s (a good fibre connection or a fast local Wi-Fi network) 1 GB takes a little under two minutes; at 2 MB/s it takes about eight and a half minutes. The page shows the actual speed and an estimate as soon as the transfer starts.

• Same Wi-Fi network: if both devices are on the same network, the video can travel over the local network, which is usually much faster than going through the internet.
• Keep the phone awake: when sending from a phone, keep the screen on and the browser in the foreground; a locked screen or another app can pause the page.
• Prevent sleep: make sure the computer will not go to sleep during a long transfer. A short interruption is recovered automatically if the connection comes back within 60 seconds, from the last received chunk.

📱 Videos from a phone

When you pick a video from the photo library in a mobile browser, the system hands a file to the browser. On iPhone, depending on the format and your settings, iOS may prepare a converted copy rather than the original. If you need the exact original, save the video to the Files app first and select it from there.

On the receiving side, an iPhone, an iPad or a Mac with Safari keeps the incoming file in memory until the end. For very long 4K videos, receiving on a computer with Chrome, Edge or Firefox, which normally write the file to disk as it arrives, is more reliable. See also our guide to transferring files between a computer and a phone.