Amazon Web Services has acquired Cloud9, a San-Francisco based start-up, to add a further stack of development tools to its web services.

Financial details about the acquisition have not been revealed by either parties.

Cloud9 offers a platform for developers to work together, write code and test it in real time on as many as 300 different browsers and operating systems through its integrated development environment (IDE).

On Clou9’s platform, extensive testing can be done by developers. This service eliminates the need for downloading browsers and individually testing codes on them.

By logging into the IDE, developers from different parts of the world can come together to write code through web or through mobile devices.

Cloud9 also supports 40 different programming languages as well as online code editor and Ubuntu workspace.

It offers its clients the ability to work remotely and company clients which include Soundcloud, Atlassian and Salesforce. At first, Cloud9’s services were designed to have freemium model along with paid services offering $19 per user per month and $29 per user per month for an enterprise tier.

According to some reports the acquisition could affect Cloud9’s pricing in the long run.  

Cloud9’s co-founder Ruben Daniels, in his blog said: “We're excited to let you, our users and customers, be among the first to learn that we have been acquired by Amazon! We will be joining the Amazon Web Services family, and we're looking forward to working together on terrific customer offerings for the future.”

He continued: “In the meantime, you'll still be able to depend on and continue to invest safely in Cloud9.

“It's still business as usual—we'll continue to work with our Ace Open Source community and to provide our innovative services to you and our hundreds of thousands of customers worldwide. Over time, we'll work with AWS to do even more on your behalf.”