OpenRocket

COLLECTIVE

Fiscal Host: Open Source Collective

Develops a no-cost open source fully-featured model rocket simulator for public, educational and nonprofit youth association use, with developers and users around the globe.

This is OpenRocket's page OpenRocket

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Latest activity by

+ 48

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Join us for $5.00 per year and support us

Starts at

$5 USD / year

Latest activity by

+ 7

Top financial contributors

Nick Estes

$200 USD since Sep 2022

MetricRocketeer

$160 USD since Oct 2022

bad_idea

$105 USD since Oct 2022

Meithan West

$100 USD since Oct 2022

Kevin McGee

$100 USD since Oct 2022

K'Tesh

$50 USD since Sep 2022

Mark B. Bundick

$50 USD since Oct 2022

MtnManAK

$50 USD since Oct 2022

David Buhler

$50 USD since Oct 2022

Incognito

$50 USD since Apr 2023

Mark Burton

$50 USD since Oct 2024

Kevin Turner

$50 USD since Sep 2025

Nathan

$50 USD since Sep 2025

Brant H

$40 USD since Feb 2023

Al Testani

$40 USD since Apr 2023

Mr.Liang WaterRocket

$27 USD since Oct 2022

Kenneth B Weaver

$26.5 USD since Sep 2022

Rob Goring

$25 USD since Sep 2022

Bruce Baldwin

$25 USD since Sep 2022

OpenRocket is all of us

Our contributors 54

Thank you for supporting OpenRocket.

H Craig Miller

Admin

$5 USD

Neil Weinstock

Admin

$5 USD

Joe Pfeiffer

Admin

Sibo Van Gool

Admin

Nick Estes

$200 USD

MetricRocketeer

$160 USD

bad_idea

$105 USD

Meithan West

Backer

$100 USD

Kevin McGee

Backer

$100 USD

K'Tesh

$50 USD

Mark B. Bundick

$50 USD

MtnManAK

$50 USD

Estimated Annual Budget

$355

Today's Balance

$752.44

Goal

per year

Budget

Transparent and open finances.

1-year renewal of the Apple Developer Program for macOS code signing

RockSim 11 Individual License

Connect

Let’s get the ball rolling!

News from OpenRocket

Updates on our activities and progress.

ANNOUNCEMENT: OpenRocket version 24.12 is now available for download

The OpenRocket team is pleased to announce a new release, OpenRocket version 24.12! Download: https://openrocket.info/down...

Published on July 30, 2025 by Sibo Van Gool

ANNOUNCEMENT: OpenRocket version 22.02 Final is now available for download

After 7 years and 9 months, including a full year of public betas, the OpenRocket team is very excited (and relieved) to announce that the final version of OpenRocket 22.02 is now available for download. This new version includes literally...

Published on February 8, 2023 by Neil Weinstock

Thanks to all our early contributors!

We wanted to send out a big thanks to all those who've contributed to the project. We know that asking for funds is a new thing for OpenRocket, and appreciate your willingness to support the project. Thanks to your contributions, we are now...

Published on October 23, 2022 by Neil Weinstock

About

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

The main features include:

Six-degree-of-freedom flight simulation
Automatic design optimization
Realtime simulated altitude, velocity and acceleration display
Staging and clustering support
Cross-platform (Java-based)

Read more about it on the OpenRocket Wiki.

Our team

H Craig Miller

Admin

Neil Weinstock

Admin

Joe Pfeiffer

Admin

Sibo Van Gool

Admin