---
title: "Video Wall From Phones, Tablets and TVs | sync.video"
description: "Make a video wall from screens you already own: split one video over a 2×2, 3×3 or custom grid of phones, tablets, laptops or TVs, all in sync. Free, no app."
url: https://sync.video/video-wall
---

1. [Home](https://sync.video/)
2. [Sync player](https://sync.video/sync-player)
3. Video wall

Free · runs in your browser

# Make a video wall from the screens you have

Split one video across a grid of phones, tablets, laptops or TVs. Each screen shows its own piece, and a shared clock keeps every piece on the same frame.

To make a video wall without special hardware, put the same video file on every screen, open this page on each, start a room with **Video wall** switched on and a grid such as 2×2, then tell each screen which tile it is. The picture is cut into pieces in each browser and the room’s shared clock keeps every piece showing the same frame, so motion flows from one screen to the next.

It’s free video wall software in the simplest sense: no controller box, no signage subscription, nothing to install. It suits a 2×2 wall of tablets at a stand, a row of three TVs behind a band, an art piece made of old phones or a classroom experiment. It does not schedule playlists or manage screens remotely the way commercial signage systems do, and it says so below.

If you want the same whole picture on every screen instead of one picture split up, that’s the plain [sync player](https://sync.video/sync-player). For an audience in different homes, see [the watch party guide](https://sync.video/watch-party).

A video wall: one picture split into a grid, each device showing its own tile, all playing on the same shared clock.

## How to make a video wall

1. ### Put the file on every screen
Copy the same video file to each device. On each one, open this page and drop the file onto **Drop the video to play in sync**.
2. ### Set up the wall on the host
On one device press **Start a room**. Under **Video wall**, turn on **Split the picture across screens**, choose a **Grid** (**2×2**, **3×3**, **3 in a row**, **2 side by side** or **Custom** with **Columns** and **Rows**), then press **Create room**.
3. ### Join and pick each tile
On every other screen press **Join a room** and enter the **Room code**. Then, under **Which screen is this?**, tap the tile that matches where that screen sits in the wall.
4. ### Line up the edges
Raise **Gap between screens** until a straight line in the picture crosses from one screen to the next without a step. Choose **Fill the wall** to crop to the wall’s shape or **Whole picture** to keep everything visible.
5. ### Go full screen and play
Press **Full screen** (F) on each screen, then **Play for everyone** on the host. Turn on **Loop the video** for a display that runs all day.

## Choosing a grid and a layout

The grid describes how the screens are arranged, not how many you happen to have. A 2×2 wall needs four screens of the same size in a square; **3 in a row** is three side by side, a favourite behind a stage; **2 side by side** makes a wide picture from two laptops. **Custom** allows up to eight columns and eight rows.

__Common walls and what suits them__
| Grid               | Screens  | Works well for                                     |
| ------------------ | -------- | -------------------------------------------------- |
| **2 side by side** | 2        | A cinematic wide shot over two laptops or monitors |
| **3 in a row**     | 3        | A panorama behind a band, a long shop window       |
| **2×2**            | 4        | Tablets or TVs on a stand; the classic small wall  |
| **3×3**            | 9        | A big feature wall from matching TVs or tablets    |
| **Custom**         | up to 64 | Odd shapes: a column of phones, a 4×2 strip        |

### Same size, same orientation

Each tile is cut assuming the screens are the same size and the same way round. Mixing a tablet and a phone in one wall makes one tile smaller than its neighbours. Turn every device to the same orientation and lock its rotation before you join, so a nudge doesn’t swap a tile.

## Bezels, gaps and fit

Real screens have frames round the picture, and a wall built from them has a band of plastic between every tile. If each tile simply showed its quarter of the video, anything crossing that band would jump: a horizon would step, a ball would teleport. **Gap between screens** tells the wall how wide that band is, as a share of one screen’s width (0 to 15 per cent), and leaves that strip of the picture out, as if you were looking through a window frame.

* Set it by eye: pause on a frame with a straight line crossing the screens and raise the gap until the line runs straight.
* Tablets and phones with slim edges need little; older TVs with thick frames need more.
* **Fill the wall** crops the video to the shape of the whole wall, so every screen is full of picture.
* **Whole picture** keeps all of the video visible and leaves black where the shapes differ.

## Keeping a wall running

A wall that runs for an afternoon needs a little more than a good picture. A few practical habits help:

* **Power.** Plug every device in; a phone at full brightness playing video drains in a few hours.
* **Awake.** While the player is showing, the page asks each browser to keep its screen on, where the browser allows it; for long shows also turn off auto-lock or sleep in each device’s settings.
* **Brightness.** Set every screen to the same brightness and switch off automatic brightness and night-time colour, or the tiles will disagree.
* **Network.** Keep the devices on the same Wi-Fi for the tightest sync. If the network drops, each screen keeps playing and catches up when it reconnects.
* **Kiosks.** On tablets, the system’s guided or pinned-app mode stops visitors leaving the page.

### Phones and smart TVs

On iPhone, full screen hands the video to the phone’s own player, which shows the whole picture and drops the tile crop; for a wall, leave iPhones in the page view instead of full screen. Built-in smart-TV browsers vary: many can’t open a local file or play smoothly while their speed is nudged. A small computer or a laptop connected to each TV by HDMI is the dependable way to put TVs in a wall.

## Compared with commercial video wall software

Dedicated video wall systems drive panels from a controller or networked players, and manage content centrally: playlists, schedules, remote monitoring, many walls from one dashboard. They are built for permanent installations and priced for them. This tool does one thing: play one video file across ordinary screens in sync, free, for as long as the room is open (up to 12 hours). For an event, a stand, a classroom or a one-off art piece, that is often all you need; for a wall in a lobby that must run unattended for years, a signage system is the right tool.

## Video wall questions

### What is a video wall?

Several screens placed edge to edge so they show one large picture, each displaying its own part of it. They are used in shops, control rooms, stages and exhibitions, usually with special panels and controllers; here the same idea works with ordinary devices.

### Can I make a 4 TV video wall?

Yes, as a **2×2** grid. Connect a laptop, tablet or small computer to each TV, put the video file on each, join them to one room and give each its tile under **Which screen is this?**. Matching TVs give the cleanest result.

### Do the screens need to be the same size?

For a seamless picture, yes. Each tile is an equal slice of the video, so a smaller screen shows its slice smaller and the picture breaks at that edge. Mixed screens still play in sync; they just won’t join up perfectly.

### How do I hide the frames between screens?

You can’t hide them, but you can stop the picture jumping across them. Raise **Gap between screens** until straight lines run straight from one screen to the next; the part of the picture behind each frame is skipped.

### Can the wall play sound?

Yes. With **Sound** set to **Only the host**, one device plays the soundtrack (connect it to a speaker) and the others stay silent, which avoids a muddle of echoes. **Every device** plays sound everywhere.

### Is the video sent to each screen?

No. Each screen plays its own copy of the file and crops its own tile. Only play, pause and clock messages pass between the devices.

## More in sync player

* [ Play a video in sync on several devices A room code, a shared clock and every screen playing the same frame at the same moment. ](https://sync.video/sync-player)
* [ Run a silent disco on guests’ phones Headphones on, one room code, and the same beat in every ear without renting a kit. ](https://sync.video/silent-disco)
* [ Host a watch party with your own files Friends in different homes, one film, the same moment on every screen. ](https://sync.video/watch-party)
* [ Compare Syncplay, Jellyfin SyncPlay and this Local-file group watching without a desktop player, a media server or a library. ](https://sync.video/syncplay-alternative)
* [ Sync audio and video online Drop one video to fix its delay, or several files to line them up by their sound. ](https://sync.video/)