MoJoXlab is a custom motion capture analysis software toolkit developed in MATLAB and Python. It aims to provide freely available tools for motion capture analysis, supporting multiple sensor systems. This software includes the source code for both MATLAB and Python versions, enabling users to analyse, process, and visualize motion capture data. Detailed instructions are provided on the primary MoJoXlab collection: https://ordo.open.ac.uk/collections/MoJoXlab/4815567, DOI: https://doi.org/10.21954/ou.rd.c.4815567