Playing a video on several screens at once, in sync, on Windows
You have a few screens to drive at the same time: a backdrop with two side panels on a stage, a row of monitors along a museum wall, a cluster of displays around a stand. You want the same video on all of them, fullscreen, with no screen running a beat behind the others. On Windows this is fiddlier than it sounds. Here is what gets in the way, and how to set it up so every screen stays locked to the same frame.
Why it trips people up on Windows
Windows treats extra monitors as extended desktop space, not as one synchronized output. The usual workarounds each break down somewhere:
| Approach | Fine for | Where it falls short |
|---|---|---|
| PowerPoint, fullscreen video | One screen, a quick loop | No real multi-screen output, no sync, fussy with codecs |
| Several VLC windows | One screen at a time | The windows drift apart, no shared controls, doubled audio |
| Win+P, "Duplicate" | Mirroring one display | One forced resolution for all, no transport, no fades or audio control |
| HDMI splitter (hardware) | Cloning one signal | Same forced resolution, extra cost, nothing controlled from software |
| Cloud signage player | Internet-connected screens | Needs steady internet, a monthly fee, and sends your content to a third party |
What you actually want is one set of controls driving a fullscreen video on every display, each at its own native resolution, all held on the same frame, with a single audio source, and no reliance on the internet.
Setting it up with Stage3
Stage3 is a Windows app made for live playback. It sends one live video feed out to every screen you pick and keeps them locked to the same frame. Each screen keeps its own native resolution, so nothing is stretched or downscaled.
- 1. Connect your screens and leave Windows in its normal extended mode. They do not need to match resolutions.
- 2. Add your video by dragging it in. If a file will not play as is, one click converts it, with nothing else to install.
- 3. Open the screen selector in the top bar. Every monitor is listed with its resolution; tick the ones you want as outputs. The screen running Stage3 stays as your control panel, marked "(app)".
- 4. Press F5 (or OUTPUT) to send the video fullscreen to each selected screen. The button reads ON AIR while they are live.
- 5. Press Space or Enter to play. Every screen shows the same frame at the same instant.
Sound comes from a single output, so there is no echo, and if you close that window another one takes over. Everything runs from your own files; the only moment Stage3 goes online is the first license check.
Where it earns its place
- Live shows and stage control. A backdrop and side screens locked to the same frame, fired from the keyboard, fading to black together on a cue.
- Museums and exhibitions. The same loop across a row of screens, left running for days with no one watching over it and nothing sent to a server.
- Booths and corporate stands. A clean loop across several screens, set up in minutes on an ordinary laptop with no separate graphics card.
Common questions
How many screens can I drive at once?
There is no hard limit in Stage3: the only constraint is what your machine can drive. A splitter or an MST hub even lets you go beyond the physical ports on your graphics card. For a reasonable number of screens, playback stays smooth on a modest computer.
Do the screens need the same resolution?
No. Each screen runs at its own native resolution, with no stretching. That is the advantage over Windows "Duplicate" mode or an HDMI splitter, which force one shared resolution on every screen, often the lowest.
Do I need a powerful graphics card?
No. Stage3 is lightweight and runs on a modest machine with no dedicated graphics card.
Does it work without internet?
Yes. Playback is entirely local. You only need a connection once, to activate the license. After that it runs fully offline.
Which formats does it read?
13 formats natively, with nothing to install: MP4, MKV, MOV, AVI, WMV, FLV and WebM for video, plus MP3, WAV, FLAC, AAC, OGG and WMA for audio. Other formats convert in one click.
Read next
- Play video fullscreen on a second monitor: the single-screen version, with your control screen kept to yourself.
- Loop a video 24/7 on Windows: leave the same loop running for days, unattended.
- QLab for Windows? The closest alternatives: how Stage3 compares to the macOS reference and the rest of the field.
Try it on your own screens
Download Stage3 for Windows and use every feature free for 7 days. No account needed. Every version is built from what users ask for, and updates are included for life.