Open a room
Sign in with Google and create a room. Pick whether you are pasting a link, sharing your screen, or playing a local file.
Watch together
Movmash is a watch together website: open a private room, share one link, and watch movies, shows, or videos at the same time with synced playback, chat, and reactions. Guests join in the browser — nothing to install.

A friend-first watch party feel that still leads people into a simple room setup.
What it means
Watching something together online sounds simple until you try it. Two people press play on the same video a few seconds apart and spend the rest of the night nudging each other back into sync. Someone screen shares and the audio does not come through. Someone else is on a phone and the link will not open. The film is not the hard part — staying on the same second is.
A watch together site solves this by keeping one shared clock. Instead of everyone controlling their own copy, the room holds a single playback position. When one person pauses, everyone pauses. When someone joins twenty minutes late, they land exactly where the room already is rather than at the beginning. That is the whole difference between watching at the same time and genuinely watching together online.
Movmash puts that shared clock in a private room you open in a browser tab. You choose how the video gets there — a supported link, your screen, or a file already on your computer — and everything else stays the same: one room, one link, synced playback, chat and reactions alongside the video instead of in a separate app.
Guests do not need an account and nobody installs anything. You send a link, they open it, and the room is running. Creating the room takes a Google sign-in so it stays yours; joining one takes nothing at all.
How it works
Three steps, and only the first one needs an account. From a cold start most rooms are watching inside a minute.
Sign in with Google and create a room. Pick whether you are pasting a link, sharing your screen, or playing a local file.
Send the room link however you already talk — chat, DM, group thread. Guests open it in any browser and are in, with no account and no install.
Playback stays shared from that point on. Pause for snacks, rewind the line nobody caught, and the whole room moves with you.

Three ways to watch
Different nights need different setups. A supported link is the smoothest path, screen sharing covers the services that do not allow direct embedding, and local files cover everything that never went online in the first place.
Drop in a URL from a supported platform and the room handles playback for everyone at once. This is the cleanest option: each person streams the video themselves at their own quality, while the room keeps the timeline shared.
Play the video on your own machine and broadcast it into the room. Because the room is showing your screen rather than embedding a service, this is what covers subscription platforms that block direct embedding.
Play a video file straight from your computer into the room. The file is streamed to the people in the room as it plays and is never uploaded to or stored on our servers.

Why it works better
The room feels familiar quickly, so people can stop figuring things out and start watching.
The room holds one playback position for everyone. Pause, seek, or join late and it stays shared, so nobody reacts to a scene the rest of the room has not reached yet.
Send one link and bring people in without turning movie night into setup time. No account, no download, no permissions to talk anyone through.
If a link will not embed, switch to screen sharing. If the file never went online, stream it locally. You are not stuck with one method for the whole night.
Chat and reactions sit next to the video rather than in a separate app, so nobody is watching in one window and talking in another.
Use it for
The same room works whether it is two people three time zones apart or a group catching the same episode on release night.
Pick something, share the room link, and start together instead of counting down over a group chat and hoping everyone hits play at once.
Watch series together the night they land, or go back through an old favourite with the people who quote it best.
Keep a standing night with a partner, sibling, or friend in another country when the alternative is texting through the same film separately.
Go deeper
Longer reads on the parts worth getting right — which tools do what, how to handle the platforms that block embedding, and playing your own files to a room.
Six ways compared honestly: watch party rooms, sync extensions, screen sharing and more.
Read the guideWhat each type is, what it demands of everyone watching, and what replaced Rabb.it.
Read the guideStream a video from your own computer to the room in sync, with no upload and no waiting.
Read the guideThe simplest starting point: a supported link, one room, and synced playback.
Read the guideStep by step through picking a source, sharing the link, and watching in sync.
Read the guideWhat the free plan actually covers, and where screen sharing takes over.
Read the guideWhat you can watch
Some platforms play directly in the room. Others do not allow embedded playback anywhere — those are what screen sharing is for, and it covers effectively any service you can open in a browser.
Paste the URL and the room syncs playback for everyone.
These block embedded playback, so you share the tab instead. Everyone needs their own subscription.
Streamed from your machine to the room. Never uploaded, never stored on our servers.
FAQ
Movmash keeps shared watching simple, clear, and easy to start from the first click.