Peer-to-Peer File Transfer in the Browser

Peer-to-peer (P2P) means the two devices exchange data directly with each other, instead of both talking to a server that relays everything in between. Nearsend uses real P2P, WebRTC data channels, for the actual file transfer.

The usual problem

Most "file sharing" online is actually client-server: your device uploads to a server, the server stores it, and the other device downloads from the server. That’s an extra hop each way, a storage step in the middle, and a server that ends up with a copy of your file, even temporarily.

How Nearsend solves it

Nearsend uses WebRTC to open a direct data channel between the sending and receiving browser. A lightweight signaling step (through nearsend.app) helps the two devices find and connect to each other, but once that connection is open, file data flows straight from one device to the other, genuinely peer-to-peer, not routed through server storage.

How to do it

Open Nearsend on both devices, Go to nearsend.app in any modern browser on the sending and receiving device; no app to install.
Pair them, Scan the animated QR code, enter the 6-digit PIN, or say the voice phrase to connect the two devices directly.
Send your files or folder, Drop files or a full folder onto the page, or pick them from the file browser. They stream straight to the other device.

Why it works well here

No app to install, runs in the browser on both devices
No account or sign-up required
Works across Windows, macOS, Linux, Android, iOS, ChromeOS, and HarmonyOS
Files stream directly device-to-device; nothing is stored on a server
Real WebRTC peer-to-peer data channels for the file transfer itself, not just the initial connection

Frequently Asked Questions

What does peer-to-peer actually mean here?

It means the file data travels directly between the sending and receiving device, rather than being uploaded to and downloaded from a server in the middle.

Does a server do anything at all?

A small signaling step helps the two devices establish a direct connection. After that, the file transfer itself is peer-to-peer.

Is P2P transfer faster than upload/download?

It skips the extra upload-then-download hop, so it’s often faster and doesn’t depend on a third-party server’s speed.

Do both devices need to install anything for P2P to work?

No, WebRTC is built into modern browsers, so nothing needs to be installed on either device.

Does this work between any two device types?

Yes, any two devices with a modern browser can connect, regardless of operating system.

Is this the same P2P technology used in older file-sharing networks?

No; those relied on public swarms where anyone could connect to anyone sharing a file. This is one-to-one P2P: a connection only forms between two devices that deliberately paired with each other.

Does peer-to-peer mean my IP address is visible to the other device?

The two devices do need enough network information to route to each other for a direct connection to work, the same way any direct network connection between two points requires knowing where each one is.

Why do people sometimes assume P2P is inherently risky?

It's mostly a reputation carried over from older, public file-sharing swarms. A deliberate, one-to-one connection between two specific paired devices is a structurally different, much narrower kind of system.

Does P2P mean the connection is somehow less stable than a server-based one?

Not inherently, a direct connection typically has fewer hops than going through a server, which if anything tends to help stability rather than hurt it.