ESTWeb is an internet based software package designed for uniform data processing and storage for large-scale EST sequencing projects. The package provides for: (a) reception of sequencing chromatograms, (b) sequence processing such as base-calling, vector screening, comparison with public databases, (c) storage of data and analysis in a relational database, (d) generation of a graphical report of individual sequence quality, and (e) issuing of reports with statistics of productivity and redundancy. The software facilitates real-time monitoring and evaluation of EST sequence acquisition progress along an EST sequencing project.