PURPOSE: to describe the construction phases of EMG BioanalyzerBR (version 1.0) and demonstrate its applicability in analyzing parameters provided by surface electromyography (EMG). METHOD: it is a descriptive analysis software developed in order to analyze the parameters obtained in surface electromyography of muscles involved in swallowing. This software was written in a development environment used by worldwide researchers, with easy accessibility and programming: Scilab. RESULTS: this tool has proved effective for analyzing transferring short data records, having on average 10 seconds duration, but for with longest periods above 20s there were some failures that did not harm the calculation after a few tries. CONCLUSION: despite the difficulties, EMG BioanalyzerBR fostered the development of channel-by-channel markings and how many marks were needed simultaneously, and thus the tabulation of data became faster and with reduced margin as for human error, but needing improvements for version 2.0.