openrocket Aircraft Design & Engineering

Model-rocketry aerodynamics and trajectory simulation software

What openrocket does

Model-rocketry aerodynamics and trajectory simulation software It is a free, open-source project hosted at openrocket/openrocket and released under the licence stated in the repository licence.

Download and install

1. Get the files. Use Download releases above if the maintainers publish binaries, otherwise grab the source ZIP or git clone https://github.com/openrocket/openrocket.git.
2. Read the README. Build and runtime requirements differ per platform — the repo README is the authoritative guide.
3. Check the licence. The repository states its licence terms apply to redistribution and commercial use.
4. Join the community. Issues, discussions and pull requests live in the repository — that is where bugs get fixed.

Project snapshot

• Repositoryopenrocket/openrocket
• Stars3,160
• Forks706
• LanguageJava
• LicenceSee repository
• Last update2026-10-08
• Topicsaerospaceflight-simulatorjavamodelingoptimizationrocket

Not affiliated with the project authors. Metadata pulled from the GitHub API; figures may lag the live repository.