https://github.com/openrocket/openrocket

Model-rocketry aerodynamics and trajectory simulation software
https://github.com/openrocket/openrocket

aerospace flight-simulator java modeling optimization rocket rocketry simulation trajectory

Last synced: 13 days ago
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Model-rocketry aerodynamics and trajectory simulation software

• Host: GitHub
• URL: https://github.com/openrocket/openrocket
• Owner: openrocket
• License: other
• Created: 2012-09-29T16:50:37.000Z (over 12 years ago)
• Default Branch: unstable
• Last Pushed: 2025-04-03T16:56:30.000Z (20 days ago)
• Last Synced: 2025-04-10T05:28:14.477Z (13 days ago)
• Topics: aerospace, flight-simulator, java, modeling, optimization, rocket, rocketry, simulation, trajectory
• Language: Java
• Homepage: https://openrocket.info/
• Size: 346 MB
• Stars: 1,426
• Watchers: 59
• Forks: 448
• Open Issues: 271
• Metadata Files:
  • Readme: README.md
  • Changelog: ChangeLog
  • Contributing: CONTRIBUTING.md
  • Funding: .github/FUNDING.yml
  • License: LICENSE.TXT
  • Code of conduct: CODE_OF_CONDUCT.md
  • Citation: CITATION.cff
  • Support: SUPPORT.md

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README

        
# OpenRocket 🚀

OpenRocket is a free, fully featured model rocket simulator that allows you to design and simulate your rockets before actually building and flying them.

![Build Status](https://github.com/openrocket/openrocket/actions/workflows/build.yml/badge.svg)

[![License: GPL v3](https://img.shields.io/badge/License-GPLv3-blue.svg)](https://www.gnu.org/licenses/gpl-3.0)

![GitHub release](https://img.shields.io/github/release/openrocket/openrocket.svg)

[![Github Releases (by release)](https://img.shields.io/github/downloads/openrocket/openrocket/latest/total.svg)](https://GitHub.com/openrocket/openrocket/releases/)

[![Read the Docs](https://readthedocs.org/projects/openrocket/badge/?version=latest)](https://openrocket.readthedocs.io/en/latest/)

[![snap release](https://snapcraft.io/openrocket/badge.svg)](https://snapcraft.io/openrocket)

![Chocolatey release](https://img.shields.io/chocolatey/v/openrocket)

[![Join our Discord server!](https://img.shields.io/discord/1073297014814691328?logo=discord)](https://discord.gg/qD2G5v2FAw)

--------

## 🛠️ Design, Visualize, and Analyze

1. **Design** your rockets using a rich selection of built-in components:

   ![Three-stage rocket - 2D](.github/OpenRocket_home_2D.png)

2. **Visualize** your masterpiece in 3D:

   ![Three-stage rocket - 3D](.github/OpenRocket_home_3D.png)

3. **Plot & Analyze** your simulation results for precision and improvements:

   ![Three-stage rocket - Simulation plot](.github/OpenRocket_sim.png)

## 🌟 Features

- **Six-degree-of-freedom flight simulation**

- **Automatic design optimization**

- **Realtime simulated altitude, velocity, and acceleration display**

- **Staging and clustering support**

- **Export to other simulation programs (RockSim, RASAero II)**

- **Export component(s) to OBJ file for 3D printing**

- **Cross-platform (Java-based)**

... plus many more

📖 Read more on [our website](https://openrocket.info/).

## 💾 Installers

You can find the OpenRocket installers [here](https://openrocket.info/downloads.html).

Release notes are available on each [release's page](https://github.com/openrocket/openrocket/releases) or on [our website](https://openrocket.info/release_notes.html).

## 📖 Documentation

You can find our documentation on [ReadTheDocs](https://openrocket.readthedocs.io/en/latest/).

## 🚀 Getting started

The easiest way to get started is to open one of our in-program example designs:

![Get started with the example designs](.github/getting-started.png)

Dive into the essentials: adjust component dimensions, plot a simulation, swap out motors, ... Explore the impact of your changes and, most importantly, enjoy the process! 😊

## 💪 Contribute

Help us soar higher! Whether it's implementing features, writing documentation, or creating design examples, every contribution matters. Interested? Check out [how to get involved](http://openrocket.sourceforge.net/getinvolved.html) and the [practicalities of contributing](CONTRIBUTING.md).

### ✨ Contributors

- [Sampo Niskanen](https://github.com/plaa) - Original developer

- [Doug Pedrick](https://github.com/rodinia814) - RockSim designs, printing

- [Kevin Ruland](https://github.com/kruland2607) - Android version

- [Bill Kuker](https://github.com/bkuker) - 3D visualization

- [Richard Graham](https://github.com/rdgraham) - Geodetic computations

- Jason Blood - Freeform fin set import

- [Boris du Reau](https://github.com/bdureau) - Internationalization

- [Daniel Williams](https://github.com/teyrana) - Pod support, maintainer

- [Joe Pfeiffer](https://github.com/JoePfeiffer) - Maintainer

- [Billy Olsen](https://github.com/wolsen) - Maintainer

- [Sibo Van Gool](https://github.com/SiboVG) - RASAero file format, 3D OBJ export, dark theme, maintainer

- [Neil Weinstock](https://github.com/neilweinstock) - Tester, icons, forum support

- [H. Craig Miller](https://github.com/hcraigmiller) - Tester

You can view the full list of contributors [here](https://github.com/openrocket/openrocket/graphs/contributors).

### 🌍Translators

- Tripoli France

- Tripoli Spain

- Stefan Lobas / ERIG

- Mauro Biasutti

- Sky Dart Team / Ruslan V. Uss

- Vladimir Beran

- Polish Rocketry Society / Łukasz & Alex Kazanski

- Sibo Van Gool

- Mohamed Amin Elkebsi

- Oleksandr Hladin

## 📜 License

OpenRocket is proudly open-source under the [GNU GPL](https://www.gnu.org/licenses/gpl-3.0.en.html) license. Feel free to use, study, and extend.

---

 

⭐ Please give us a star if you find OpenRocket useful, and spread the word! ⭐

[![Star History Chart](https://api.star-history.com/svg?repos=openrocket/openrocket&type=Date)](https://star-history.com/#openrocket/openrocket&Date)