Buy Now

Purchase a license online and activate ArraySync instantly.

Download ArraySync:

Use ArraySync (server) in demo mode, or activate by purchasing a serial above.

Download ArraySync Client:

ArraySync Client is free but requires a connection to an ArraySync server to function.

Download Remote Activator:

Activate ArraySync server without an internet connection using your smartphone or other mobile device.

You may also download previous versions from the archive.


  • Mac OS X Tiger (10.4) or higher, or Microsoft Windows XP SP3 or higher
  • QuickTime 7 or higher
  • 512 MB memory or higher
  • PowerPC G3, G4, G5 or Intel processor

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The current build of ArraySync may not self-activate under Mac OS X Lion due to a fundamental change in the operating system. Click here for a temporary workaround. This will be fixed in the next update. Sorry for the inconvenience!

The quick and easy way to impress.

Create dazzling multi-screen presentations with ArraySync, the network QuickTime synchronizer from The National Software Laboratory. Play QuickTime content across multiple displays attached to one computer or over a local area network as if it were coming from a single video source. ArraySync is the ideal solution for event designers, trade shows, exhibitions and conferences.

Mirror videos across multiple networked computers.

ArraySync is completely scalable, and can run entirely on hardware you already own. Synchronize two displays or a hundred! ArraySync's performance is limited only by the capabilities of your hardware.

Effortlessly create video arrays without specialized hardware.

ArraySync makes it easy to build a multi-screen video presentation. Use ArrayShaker to break up your media into multiple segments and distribute them to ArraySync Clients powering your displays. Mac users also have the option to span videos directly without preprocessing with ArrayShaker.*

Create video walls without using specialized hardware.

Flexibility to match your creativity.

Because ArraySync is completely software-based, the configuration possibilities are endless. Rather than relying on infleixble hardware-based systems, you're free to design the ultimate display setup using varying sizes and placements of screens. Enjoy the flexibility to express your ideas through unique custom displays unhindered by dedicated hardware.

Design unique arrangements without conforming to a standard grid.

Sync Macs and PCs.

Whether you have Macs, PCs or both, ArraySync plays nice with all your hardware. Use a Mac as a server controlling PC clients, or a PC server controlling Mac clients, or mix and match Macs and PCs in any combination you can imagine. ArraySync's underlying protocol is platform independent.

* Video spanning mode is not available on Windows for technical reasons.