Share large files in seconds with just a 6-digit code

Sending a file to someone should take seconds. In practice it rarely does: the file is too big for email, the chat app squashes your photos, and a cloud link means signing in, setting permissions and remembering to delete the file later. A 6-digit code skips all of that. You upload the file, you get six numbers, and the other person types those numbers to download it.

This guide explains how code-based file sharing works, where it beats the alternatives, and how to use it between two devices that have nothing in common — an Android phone and a Windows PC, an iPhone and a work laptop, or your computer and a machine in a print shop.

What a 6-digit code actually is

When you upload files to BuddySend, the server stores them for a short time and generates a random six-digit number, such as 482917. That number is the key to your transfer. Anyone who types it on the receive page gets your files. You also get a share link that carries the code, so you can paste a link when that is easier than reading numbers aloud.

The code is deliberately short because it is meant to be spoken, texted or written on paper. Six digits are easy to read out over a phone call, and short enough to type on a borrowed computer.

How to send a file with a code

1. Open buddysend.com and drop your files onto the upload area. You can send up to 5 files, 100MB in total.
2. Wait for the upload to finish. You get a 6-digit code and a share link.
3. Send the code or the link to the other person by text, chat or a phone call.
4. They open buddysend.com/receive, type the code, and download the files.

No account is needed on either side, and nothing has to be installed. Both people just need a web browser.

Phone to PC without an app or cable

This is the case codes are best at. Cables need the right adapter, Bluetooth is slow, and AirDrop only works between Apple devices. A code works between any two devices with a browser, and it does not care whether they are on the same Wi-Fi network.

• Android phone to Windows PC: upload on the phone, type the code on the PC.
• iPhone to Windows PC: open the site in Safari, upload, then type the code on the PC. No iTunes, no cable.
• PC to phone: upload on the computer, type the code on the phone, and the file lands in your downloads.
• Your computer to someone else's, anywhere in the world: the code works the same way.

Photos and videos arrive exactly as they left. BuddySend does not re-compress your files, so a photo does not lose quality the way it can in some chat apps.

When a code beats email or a cloud link

• The file is too big to email. Most mail providers stop at around 25MB.
• You do not have the person's email address, but you are on the phone with them.
• You are using someone else's computer and do not want to sign in to your email or cloud account on it.
• You want the file gone afterwards instead of sitting in a shared folder forever.
• The other person is not technical. "Go to buddysend.com and type 482917" is a complete instruction.

A cloud link is still the better choice when several people need the same file over weeks, or when you need version history. Codes are for handing something over once.

What happens to your files afterwards

Short-lived sharing is the point, not a side effect. Files are removed automatically once they have been downloaded, and expire about an hour after upload if nobody collects them. After that the code stops working.

Uploads and downloads travel over HTTPS, so the transfer is encrypted in transit, and file contents are never opened or scanned. Basic details such as file names, sizes and the IP address of the sender and recipient are recorded to prevent abuse.

Because a code is short, treat it like a password while the transfer is live: send it to the person who needs it, and avoid posting it publicly.

Limits worth knowing

• Up to 5 files per transfer, 100MB in total.
• A transfer expires after download, or about an hour after upload.
• Any modern browser on any device works; there is no app to install.
• Sending and receiving are free and need no account.

Sharing code instead of files

If what you need to hand over is a snippet of code rather than a file, BuddySend Code does the same job for text. It gives you a shared editor at a link, with syntax highlighting for more than 25 languages, and anyone with the link can edit alongside you in real time. It is useful for interviews, debugging together, or pasting a config file to a colleague. Snippets expire after 7 days.

The short version

A 6-digit code turns file sharing into something you can explain in one sentence. Upload, read out six numbers, done — and the file cleans itself up afterwards. For a one-off handover between two devices or two people, it is hard to beat.