The TPX3CAM is a fast optical camera for time stamping of optical photons. It is based on a new silicon pixel sensor. In combination with the Timepix3 ASIC and readout it is suitable for a wide range of applications which require time-resolved imaging of electrons, ions, neutrons or single photons. The camera can be easily integrated both in table-top lab setups, as in synchrotron or free-electron-laser environments.