PixInsight is an advanced image processing software platform designed specifically for astrophotography and other technical imaging fields. PixInsight is a modular, open-architecture system where all processing and file handling capabilities are implemented as external installable modules.

PixInsight has been ported as a native 64-bit application to Linux, macOS and Windows operating systems. PixInsight is a strongly multithreaded environment able to exploit all processors and processor cores available on modern hardware.

PixInsight is both an image processing environment and a software development framework. The PixInsight core application integrates sophisticated graphical and command-line user interfaces. As a development platform, PixInsight provides the PixInsight Class Library (PCL), an ISO C++ framework for development of PixInsight modules, and the PixInsight JavaScript Runtime (PJSR), an ECMA 262-5 compliant environment readily available in the PixInsight core application.