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VIDEOMOSAICBlog

Watch multiple videos at once.

Turn your open video tabs into a video wall.

Open on desktop to install

Works with YouTube, Twitch, Vimeo — and almost any other web player.

A Video Mosaic wall: four different videos playing side by side in a two-by-two grid, under a toolbar with Play all, Sound, Columns and Exit fullscreen controls.
Four tabs, one wall. Every screen keeps its own controls.

One screen. Multiple streams.

Video Mosaic is a Chrome extension that puts your open video tabs — YouTube, Twitch, Vimeo, live sports and most other web players — into one grid, each with its own play, pause, sound and timeline. Stop jumping between tabs and watch them side by side.

  • Watch side by side

    See multiple videos at the same time without constantly switching tabs.

  • Use your existing tabs

    Open the videos normally, then bring them together with Video Mosaic.

  • Control them individually

    Each video keeps its own controls and playback.

A Video Mosaic wall with nine videos playing at once in a three-by-three grid — surfing, a DJ set, a night drive, a game, a coastal town, a desk, a building site, a plaza and a field.
Nine tabs on one wall — each with its own play, pause and timeline.

Whatever you’re watching.

  • Multiple streams

    Keep several Twitch streams or live broadcasts on screen at once.

  • Sports & events

    Follow multiple games, races, or live events without switching tabs.

  • YouTube & video

    Watch, compare, or monitor multiple videos side by side.

  • Web video

    Works with almost any compatible web video player.

How it works.

  1. 01

    Open your videos

    Open the videos you want in separate tabs.

  2. 02

    Launch Video Mosaic

    Right-click each tab and add it to the wall — Chrome asks for permission tab by tab.

  3. 03

    Watch them together

    Arrange your videos and watch them side by side.

A wall you can actually control.

Not a grid of thumbnails. Every screen behaves like its own player.

  • Play and pause each screen

    Pause one to read a replay while the others keep running, or hit Play all to start the whole wall at once.

  • Sound where you want it

    Pick the one screen you hear, or set sound to follow the mouse — move the pointer and the audio moves with it.

  • A timeline for every video

    Each screen gets its own scrub bar plus −10s and +10s. Rewind one match without touching the rest.

  • Arrange the wall

    Set the number of columns, the shape of each screen, zoom inside one, go edge to edge or fit to the window.

  • Fullscreen

    Push the wall to the whole display and the browser chrome disappears. Good for a second monitor.

  • Works in private windows

    Enable it for Incognito and the wall behaves exactly the same. Nothing is written down either way.

  • No real limit on screens

    Free stops at three. Unlock it and the cap disappears — how many run smoothly depends on your computer, not on us.

  • Landscape and vertical, mixed

    Shorts, TikTok and Reels play in their own shape, not stretched or cropped. Put a portrait clip beside a landscape one.

Almost any web player.

YouTube. Twitch. Vimeo. And thousands of other video players across the web.

  • YouTube
  • Twitch
  • Vimeo
  • Dailymotion
  • Live sports
  • Self-hosted video

Some DRM-protected services, such as Netflix, aren’t supported. Those players block third-party playback at the browser level, so the screen stays black — we’d rather say so here than let you find out after installing.

A Video Mosaic wall of eight portrait clips in a four-column grid, each kept in its own tall shape rather than stretched or cropped.
Portrait clips keep their shape too — nothing is stretched or cropped.

Ten euros, once. No subscription.

Three screens are free forever. If you need more, you pay one time and that is the end of it.

Free

Everything, up to three screens.

€0

  • Up to 3 screens on the wall
  • All layout and sound controls
  • Per-video timelines
  • No account, no time limit
Open on desktop to install
One-time

Unlimited

As many screens as your machine can draw.

€10 once

  • Unlimited screens
  • Everything in Free
  • Licence restores by email on a new computer
  • No renewal, no card on file
Open on desktop to install

Payment happens in the extension, through Stripe.

Questions people actually ask.

Why do I have to right-click every tab?
Chrome only lets an extension read a tab after you explicitly grant it, tab by tab. The right-click menu item is how you give that permission. No extension can get around it, and one that claims otherwise is reading your pages another way.
Netflix, Disney+ and Prime Video show a black screen. Why?
Those services use DRM, and Chrome refuses to hand the picture to any extension. The screen stays black. Nothing we can do about it, so we say it here rather than let you find out after installing. YouTube, Twitch, Vimeo, Dailymotion, self-hosted video and most sports streams work fine.
What data do you collect?
None. Video frames are drawn to your screen and discarded. Nothing is recorded, uploaded or sold, and there is no account. The only personal data connected to the product is the email address ExtensionPay holds if you buy the upgrade, so your licence can be restored. The full detail is in the privacy policy.
Does it work on Firefox, Edge or Safari?
Chrome today. Edge and other Chromium browsers are not officially supported yet but generally work. Firefox is planned. Safari is not.
Does it download or record the videos?
No. It mirrors what the tab is already showing and draws it into the grid. The video keeps playing in its own tab, and nothing is written to disk.
What happens on a new computer?
Install the extension, open the upgrade screen and enter the email address you paid with. Your licence restores itself. There is no password and no account to recover.
How many screens can my computer handle?
There is no hard limit in the extension itself — people run walls of eight or more. Four to six 1080p videos is comfortable on most laptops from the last few years; beyond that, drop the videos to a lower quality in their own tabs, since the wall follows whatever the tab is playing.
Does it work with vertical video, like TikTok or YouTube Shorts?
Yes. Portrait video works exactly like landscape — add the tab the same way, and it keeps its own shape on the wall rather than being stretched or cropped. Landscape and vertical screens can sit side by side on the same wall.
Is the €10 a subscription?
No. It is a single payment of €10 for unlimited screens, handled by Stripe through ExtensionPay. There is no renewal and no card kept on file.
Do the videos stay in sync?
Each screen is an independent player, so they run at whatever point you set them to. Use Play all to start them together, and the per-video timeline with −10s and +10s to line them up.

Still stuck? Write to contact@videomosaic.app and we’ll help directly.

Why watch one at a time?

Turn your open video tabs into one video wall.

Open on desktop to install

Free for three screens. No account, no subscription.

Curious first? Read how to watch multiple YouTube videos at once.