Manufacturing process simulations typically execute on a single platform, and are language and operating system-specific. With the growth of agile enterprises, however, the need is emerging to perform manufacturing process simulations in a distributed fashion from remote locations. In addition, individual businesses are becoming more decentralized, with geographically dispersed manufacturing and design teams. For effective concurrent engineering, product and process design teams that are in different locations need direct access to simulation tools. In addition, small- and medium-sized businesses cannot afford high-end computers and software for computationally intensive process simulations. Hence, these businesses could greatly benefit from easy access to high-end systems located remotely. The World Wide Web provides an excellent medium for remote collaboration and computing. Manufacturing process simulations can be deployed over the World Wide Web for remote access to simulations. This paper discusses the different methods for integrating manufacturing process simulations with the Web. An implementation of a Web-based metalworking process simulation with defect prediction is also presented. © 1997 John Wiley & Sons, Ltd.