# Arm NN ONNX parser `armnnOnnxParser` is a library for loading neural networks defined in ONNX protobuf files into the Arm NN runtime. For more information, a list of supported ONNX layers, and the networks that have been tested, please visit our [doxygen documentation](https://arm-software.github.io/armnn/latest/parsers.xhtml#S5_onnx_parser).