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PlotJuggler

Free, open-source desktop tool for plotting and exploring time-series data from robots and logs.

Open sourceRobotics visualization and data tools
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About PlotJuggler

PlotJuggler is a long-running open-source app for visualizing time-series data, popular with ROS and drone developers. You drag topics or columns onto plots to graph signals like velocities, IMU readings or joint states, line them up on a shared timeline, and apply filters or custom transforms to derived values. It loads files such as MCAP, ROS bags, CSV, Parquet and PX4 ULog, and can stream live data over ROS 2, MQTT, WebSocket or ZeroMQ. The newly released version 4 adds 2D image and video panels and 3D views of point clouds, meshes and markers, though it is still marked beta. PlotJuggler is free under the Mozilla Public License 2.0 and supports plugins for new data sources and parsers. It is a desktop app, mainly used on Linux, with no cloud storage or team sharing, so it fits individual debugging rather than managing a whole fleet's data.

Best for: ROS and drone developers who need fast, free plotting of signals from logs or live topics.

Pros and cons

What works

  • Free and open source under MPL-2.0
  • Reads MCAP, ROS, CSV, Parquet and ULog files
  • Streams live data over ROS 2, MQTT, WebSocket and ZeroMQ

Why people leave

  • Version 4 with 2D/3D views is still in beta
  • No cloud storage or team sharing
  • Mainly built and tested for Linux

Top PlotJuggler alternatives

See all 2
  1. 1Foxglove logo
    Foxglove

    Adds 3D scenes, camera panels and a hosted data platform for teams on top of plotting.

    66.5
  2. 2Rerun logo
    Rerun

    Log images, point clouds and time series from your own code and view them on one timeline.

    59.6

Why people left PlotJuggler

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PlotJuggler: common questions

Is PlotJuggler free?

Yes. PlotJuggler is free, open-source software.

Is PlotJuggler open source?

Yes. The source code is on GitHub at PlotJuggler/PlotJuggler.

What platforms does PlotJuggler run on?

PlotJuggler is available for Linux and Windows.

What are the best alternatives to PlotJuggler?

The highest-ranked PlotJuggler alternatives right now are Foxglove and Rerun. See the full ranked list for pricing, platforms and verified facts.

See all 2 PlotJuggler alternatives