Cast video from your phone to your TV without uploading it

The most common way to get a phone video onto a TV is to upload it to a cloud service first, then stream it back down on the TV. That adds a wait, adds a copy of your file on someone else's servers, and — for large or personal videos — adds a privacy question you shouldn't have to answer.

Chusko skips the middle entirely. Your phone is the Projector: it holds the file and streams it directly to a Screen — a laptop, desktop, or TV with a browser — over an encrypted peer-to-peer connection. The video never leaves your devices. Here's how to do it.

The setup, step by step

1. Open Chusko on the TV or laptop. Any device with a modern browser works as the screen.
2. Pick "I'm the Screen" and host a room. You get a 6-character room code and a QR code.
3. On your phone, pick "I'm the Projector." Enter the code — or scan the QR, which fills it in for you.
4. Choose the video on your phone. The projector reads it from local storage and starts streaming; playback can begin before the whole file crosses the link.
5. Control playback from your phone. Play, pause, seek, volume, and ±10 second skips are all on the projector, executed on the screen.

Why there's no upload step

Chusko's architecture has no place for your file to go. The only server involved is a signaling relay that brokers the WebRTC connection — a few kilobytes of handshake, never the media. The video bytes travel from your phone to the screen directly, encrypted end to end. Even when a TURN relay is needed to punch through a restrictive network, it only forwards encrypted packets it cannot read.

What you can cast

• Any format your browser plays: MP4, MOV, WebM, MKV, Ogg, and more.
• Files that other casters choke on. There's no remuxing and no container parsing, so files don't need to be fragmented or "faststart." Even an MP4 with its moov atom at the end — a classic problem file — plays fine.
• Long movies. Received bytes are stored as disk-backed blobs on the screen, so there's no size ceiling.

It works over the internet, not just your Wi-Fi

Both devices don't need to be on the same network. The connection uses standard WebRTC NAT traversal, so a phone on cellular can drive a screen at home. And if the connection drops mid-movie, sessions resume: the screen keeps the bytes it already received, and the projector remembers its playhead.

The privacy payoff

The practical difference is simple: there is no copy of your video anywhere except on the devices you chose. Nothing to delete later, nothing in a cache you don't control, nothing an account suspension can take away. For the deeper argument, read why your media should never touch a server; for quick answers, the FAQ covers formats, pairing, and encryption.