Project presentation GNS3


GNS3 is used by hundreds of thousands of network engineers worldwide to emulate, configure, test and troubleshoot virtual and real networks. GNS3 allows you to run a small topology consisting of only a few devices on your laptop, to those that have many devices hosted on multiple servers or even hosted in the cloud.

GNS3 is open source, free software available on The first was released in 2008.

For a long time most of the documentation was not something made by us. A lot of ressources is available online (youtube, paid courses, books) made by community members. But this year we decided to put a big effort and getting something good.

You could found the documentation here: We are very happy with Docsearch because it was so simple to integrate and the fact that the search support anchor location is just awesome.