Neuranim can be used to visualise the results of computational neuroscience simulations as well as experimental data. The specification of the model architecture is read from a neuroML description and visualised in 3D using the openGL extensions to Nokia's Qt. Simulation data can be visualised in color changes of shown neurons and movie frames can be recorded during animation. The software allows full interaction with the visualisation including rotations, zoom in/out, translations and changes in the representation of neurons and synapses. It also provides a scripting language to produce targeted movement animations during the replay of simulation data.