#19 · Primary category： Robotics & Embodied AI Simulation
Dalaran
Dalaran — Apache-2.0, robotics-first visualization and data infrastructure for multimodal time-series. ROS 2 native, reads existing .rrd recordings. A hard fork of Rerun.
Project last updated：08/12/26
GitHub Stars
795
Forks
38
Contributors
179
License
Apache-2.0
Why we included this project
Debugging a robot usually means trying to figure out what the LiDAR, the camera, and the IMU were each doing at the exact same moment, and that's painful when your logs live in separate places. Dalaran records multimodal time-series from ROS 2 topics and replays them on one synchronized timeline in a 3D/2D viewer, so you can look at every sensor at once. It's a hard fork of Rerun, which means it inherits the Arrow-backed columnar storage and can open existing .rrd recordings without conversion, so teams already using Rerun can switch without reworking their data. SDKs exist for Python, Rust, and C++, and the stored data comes back out as dataframes when you'd rather compute on it than stare at it.
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