Developers keen to create apps that let users control devices remotely – like Skype and Google Hangouts – can do so more easily with RealVNC’s free software development kit (SDK).

It previously called for interested entrepreneurs to sign up to its VNC Developer Programme to get a preview of the portal and is now making it widely available at The SDK comes with other useful tools including sample code to help developers get up and running quickly, and detailed technical documentation.

Devs can work with the tech for free and if viable for enterprise, transfer onto a pro license iStock/Alvarez
Devs can work with the tech for free and if viable for enterprise, transfer onto a pro license iStock/Alvarez

Adam Greenwood Byrne, RealVNC’s vice president, said: "We have nearly 15 years of experience working with organisations such as Google, Intel and IBM. We have integrated VNC into everything from MRI scanners to set-box boxes and even directly onto silicon.

“We've solved the complicated problems that aren't obvious until you start trying to write this stuff for yourself. In the VNC SDK, we distil our many years of expertise to reduce your time to market for a feature that is no longer nice-to-have; it's expected - remote control."

Virtual Network Computing (VNC) was pioneered by Cambridge startup RealVNC and is used by Google, Intel and Sony as well as medical device manufacturer Beckman Coulter.

Previously developers who wished to integrate the technology into an app were faced with purchasing the basic VNC product and customising it. Now they can play around with the drag-and-drop interface and integration tools, for free.

In addition, the SDK will work together with VNC Cloud, which provides secure connections between networks with different security characteristics, brokering connections between two devices, for example where a firewall is in the way. It enables secure remote connectivity between systems which would previously have been incompatible.

The SDK is compatible with Linux, Windows, Mac, Ios, Android and HTML5.

Byrne added: "The launch of our new SDK, alongside the developer portal, will empower the next generation of developers to innovate and create solutions to real every-day challenges and problems."