LibRA implements core radio astronomy algorithms for calibration and image reconstruction from interferometric telescope data. A re-engineered fork of CASA (ascl:1107.013), the library provides routines for transforming Fourier-domain measurements into reconstructed images and supports use as standalone applications or as a library integrated into larger processing workflows. Interfaces are available in C++ and Python, enabling direct access to low-level algorithms as well as command-line execution for automated pipelines. LibRA supports research and development in aperture synthesis imaging with minimal external dependencies.