Diffusion Fundamentals is a peer-reviewed interdisciplinary open-access online journal published as a part of the Web-site Diffusion-Fundamentals.org. It publishes original research articles in the field of diffusion and transport. Main research areas include: Theory; Experiments; Applications; Methods; Diffusion-like phenomena.

The readers of Diffusion Fundamentals are academic or industrial scientists in all research disciplines. The Journal aims at providing a broad forum for their communication.