PlotJuggler

PlotJuggler loads large data files or live streams and lets you drag signals into time and XY plots. It reads CSV, MCAP, Parquet, PX4 ULog and more, and connects live to ROS 2, MQTT, ZeroMQ, UDP and WebSocket. You can compare recordings on aligned timelines, apply filters, differentiate, integrate and run FFT, and write transforms in Lua or Python. It also shows video, point clouds and URDF models. It suits test data analysis, control debugging and drone log review. Limitation: there is no official macOS build.