To try Dolibarr now, you have two solutions :

A free dedicated instance, only for your company:  Create in few click a dedicated clean and secured instance (into Amazon Cloud), and start to use it as if it was for a production usage. Data are yours and will not be deleted until trial runs. If software suits you, you can later upgrade to a supported version with no need to migrate.

Click here to initialize your dedicated instance

                                        or

Test on the shared instance: Test immediately using the world shared instance of Dolibarr. This instance is not dedicated to you, but used by everyone, and is updated/reinitialized several times a month with last development version (so may not be stable).

Click here to start with shared demo instance