

Here, we describe the GNAT (General NMR Analysis Toolbox), a free and open‐source platform, released under the General Public License, for processing and analysing NMR data.

The first official version was released in 2009, and it has since become a useful tool for many scientists, complementing other NMR software. DOSY 26, 27) data, although sometimes used for other purposes. 17, 18, 19, 20, 21, 22, 23, 24, 25 One example is the popular DOSY (Diffusion‐Ordered SpectroscopY) Toolbox, 23 a free and open‐source software package typically intended for processing NMR diffusion (a.k.a. 12, 13, 14, 15, 16 In recent years, an increasing number of free software packages, often produced by individual researchers or groups to cover specific needs, have been produced.

They can be classified into three main categories: (a) supplied by spectrometer manufacturers, 1, 2, 3, 4, 5 (b) commercial packages, 6, 7, 8, 9, 10, 11 and (c) free software. A variety of software packages are available for processing high‐resolution NMR data.
