OpenRocket is model rocket simulation software with a download and information about supported operating systems.
Free
24 alternativesOpenrocket
OpenRocket provides aerodynamics and trajectory simulation software for model rocketry.
About Openrocket
OpenRocket is a free model rocket simulator for designing rockets and simulating flight before building and flying. It offers built-in components including pods, staging options and varied fin shapes, with 3D visualization and plots of simulation results.
It provides six-degree-of-freedom simulation with staging and clustering support, and export to RockSim, RASAero II, OBJ and SVG formats. It does not collect telemetry or upload designs, but it makes network requests for update checks and user-requested online actions, which can be disabled in preferences.
Key features
- Six-degree-of-freedom flight simulation
- Automatic design optimization
- Real-time simulated altitude, velocity, and acceleration display
- Staging and clustering support
- Export to RockSim and RASAero II formats
- Export components to OBJ or SVG for manufacturing
Best for: People who design and simulate model rockets before building and flying them.
Good for
- Free to use for rocket design and simulation
- Does not collect telemetry or upload rocket designs
- Cross-platform Java-based software with installers provided
Openrocket at a glance
- Type
- Open-source project
- Pricing
- Not confirmed. Check the site
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
Openrocket alternatives
Tools and sites you could use instead, ranked by how closely they match.
RocketPy describes itself as a six-degree-of-freedom trajectory simulator for high-power rocketry.
Open source
24 alternativesThe OpenRocket wiki provides collaboratively written documentation for the open-source model rocket simulator.
John Coker shares information about model and high-power rocketry through his rocketry site.
The UIUC Airfoil Data Site provides airfoil information from the Applied Aerodynamics Group.
RCPlanes Online offers a beginner's guide to basic aerodynamics and information for radio-controlled aircraft hobbyists.
Popular in Science, Math & Technology
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Openrocket FAQ
Does OpenRocket collect or upload my rocket designs?
No. It does not collect telemetry or upload designs. It makes network requests for checking application and motor-database updates, opening online resources, and submitting a bug report when requested. Internet access can be disabled in preferences.
What file formats can I export to?
It can export to RockSim and RASAero II, and export components to OBJ for 3D printing or SVG for laser cutting.
How can I learn to use OpenRocket?
Open one of the in-program example designs, then adjust component dimensions, plot a simulation, and swap out motors.
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