SoCLib is a library of pluggable SystemC cycle-accurate and transaction-level components. The library contains many types of models: processor cores (MIPS32, PPC405, ARM-v6k, Nios2, MicroBlaze, lm32, etc.), memory types, devices (block device, UART, frame buffer, etc.) and network-on-chip models. SoCLib can be used to create a complete system-on-chip hardware design, as well as for testing and evaluating embedded operating systems and applications. NetBSD, MutekH, and other dedicated systems are ported to the SoCLib hardware simulator. A Linux port is an ongoing project.