High Quality Content by WIKIPEDIA articles! Google Native Client (NaCl) is a sandboxing technology for running a subset of Intel x86 or ARM native code using software-based fault isolation. It is proposed for safely running native code from a web browser, allowing web-based applications to run at near-native speeds, which aligns well with Google`s plans with Chrome OS. It may also be used for securing browser plugins, and in the future parts of other applications or full applications.