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GLE4MD aims to be a collection of tools to simplify the use of colored-noise, generalized Langevin equation thermostats to enhance your molecular dynamics simulations. A colored-noise thermostat can be used to enhance canonical sampling, in particular in difficult cases such as path integral dynamics, to perform constant-temperature MD in a Car-Parrinello-like dynamics, to control resonances in multiple time step dynamics, to include nuclear quantum effects at a fraction of the cost of a path-integrals simulation, to compute the particle momentum distribution, to selectively excite a few normal modes, and a number of other applications which have not been invented yet. On these pages you will find a collection of ready-to-use GLE parameters, and a handy online tool to prepare the GLE section of the input for different programs, tools to analyze and fit GLE matrices, sample code to include colored-noise thermostats in your MD code, tutorials and documentation to explain in detail how to use colored noise in your simulation. You will also find information concerning i-PI, a Python interface to perform path integral molecular dynamics with ab initio (and empirical) forces, that implements all of the colored-noise machinery.