OffWorldly Marketplace

Astrodynamics & Flight DynamicsFeatured

FreeFlyer

Design, analyze, and operate missions with a flight-proven astrodynamics environment.

CommercialFree for Students

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FreeFlyer

FreeFlyer is a commercial astrodynamics application from a.i. solutions for designing, analyzing, and operating space missions. Its capabilities span high-fidelity propagation, trajectory design, targeting, optimization, coverage, orbit determination, visualization, automation, and external integration.FreeFlyer 8 introduced a modernized cross-platform foundation and a decoupled visualization…

High-fidelity orbit propagation and force modeling
Maneuver targeting and optimization
Orbit determination
Coverage and contact analysis

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Astrodynamics & Flight DynamicsFeatured

Meridian

Streamline routine flight dynamics operations from one operator-focused environment.

CommercialDemo Available

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Meridian

Meridian is a turnkey flight dynamics ground-system solution from a.i. solutions. It provides operator-focused workflows for routine LEO and GEO operations, including orbit products, maneuver planning, orbit determination, conjunction assessment, and automation.Meridian is powered by the FreeFlyer astrodynamics engine and is designed to…

Orbit propagation and product generation
Maneuver planning, reconstruction, and calibration
Orbit determination
Conjunction assessment and collision avoidance workflows

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Developer Tools & Libraries

Astropy

Use a shared Python foundation for astronomy and space-science data workflows.

FreeOpen Source

Astrodynamics & Flight Dynamics

Basilisk

Build modular spacecraft dynamics and GNC simulations through Python and C/C++.

FreeOpen Source

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Basilisk

Basilisk is a modular spacecraft simulation framework developed by the University of Colorado AVS Laboratory and LASP. Its C/C++ modules are exposed through Python for flexible astrodynamics, dynamics, GNC, and mission-specific simulation workflows.

Modular spacecraft simulation
Orbit and attitude dynamics
GNC algorithm testing
Hardware-in-the-loop scenarios

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Developer Tools & Libraries

CesiumJS

Build precise, time-dynamic 3D globe experiences for aerospace and geospatial data.

FreeOpen Source

Astrodynamics & Flight Dynamics

Copernicus

Design and optimize high-fidelity trajectories across Earth, lunar, and interplanetary mission regimes.

FreeGovernment Release

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Copernicus

Copernicus is a generalized spacecraft trajectory design and optimization application developed at NASA Johnson Space Center. It supports high-fidelity modeling, finite burns, multiple optimization modes, scripting, visualization, and mission design across Earth orbit, lunar, libration-point, and interplanetary regimes.Copernicus is distributed under a U.S.…

High-fidelity trajectory propagation
Direct and indirect optimization
Finite-burn modeling
Multi-body and CR3BP analysis

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Earth Observation & Remote Sensing

ESA SNAP

Process Sentinel and other EO sensor data through ESA's extensible desktop platform.

FreeOpen Source

Command, Control & Ground Systems

F Prime

Compose, test, and deploy flight-quality embedded applications from reusable components.

FreeOpen Source

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F Prime

F Prime is a component-driven framework originally developed at JPL for rapidly developing and deploying spaceflight and embedded software. It includes modeling, code generation, components, a ground data system, testing support, and tutorials.

Component architecture
FPP modeling and code generation
Ground data system
Testing tools

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Developer Tools & Libraries

NASA Core Flight System (cFS)

Build portable spacecraft flight software on NASA's modular core framework.

FreeGovernment Release

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NASA Core Flight System (cFS)

The open-source cFS distribution provides the core Flight Executive, operating-system abstraction, platform support, framework applications, tools, and common applications. NASA separately maintains government-use capabilities beyond the public bundle.

Core Flight Executive
Operating System Abstraction Layer
Platform Support Package
Common applications

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Command, Control & Ground Systems

NASA Open MCT

Build browser-based operational displays for telemetry, planning, and analysis.

FreeOpen Source

Flight Software

NASA Operational Simulator for Space Systems (NOS3)

Exercise flight software against simulated spacecraft hardware before integrated testing.

FreeOpen Source

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NASA Operational Simulator for Space Systems (NOS3)

NOS3 supports spacecraft software development and testing by combining simulated hardware models, flight software, ground tools, and mission scenarios. The project uses the NASA Open Source Agreement 1.3.

Software-only simulation
Simulated hardware models
cFS integration
Ground-system integration

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Developer Tools & Libraries

NASA Trick Simulation Environment

Integrate and run engineering simulations with reusable execution infrastructure.

FreeOpen Source

Developer Tools & Libraries

NASA/JPL SPICE Toolkit

Compute mission geometry and work with authoritative SPICE kernels across planetary missions.

Free

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NASA/JPL SPICE Toolkit

The SPICE Toolkit from JPL's Navigation and Ancillary Information Facility provides APIs, libraries, utilities, and technical references for computing observation geometry from SPICE kernels. NAIF distributes it freely under specific rules and does not classify it as a conventional community open-source project.

Ephemeris calculations
Reference frames
Instrument geometry
Events and time systems

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Command, Control & Ground Systems

OpenC3 COSMOS Core

Connect hardware, telemetry, commands, scripts, and dashboards in a container-native ground stack.

FreeSource Available

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OpenC3 COSMOS Core

COSMOS Core is OpenC3's single-user command-and-control environment for hardware interfaces, telemetry, commanding, logging, script execution, dashboards, and plugins. Its custom Builder's License permits commercial use but restricts commercial hosting and distribution, so OffWorldly classifies it as Free and Source Available rather than conventional…

Hardware interfaces
Telemetry and commanding
Logging and replay
Script Runner

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Launch & Rocketry

OpenRocket

Design and simulate model rockets in a documented cross-platform application.

FreeOpen Source

Mission Design & Analysis

OpenVSP

Create parametric aircraft geometry for conceptual design and downstream analysis.

FreeOpen Source

Developer Tools & Libraries

Orfeo ToolBox

Build scalable remote-sensing image-processing pipelines with desktop, CLI, and code interfaces.

FreeOpen Source

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Orfeo ToolBox

Orfeo ToolBox provides algorithms and applications for remote-sensing imagery, including classification, segmentation, feature extraction, orthorectification, and change detection. It can be used through command-line tools, Python bindings, C++, or QGIS integration.

Image classification
Segmentation
Feature extraction
Orthorectification

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Astrodynamics & Flight Dynamics

PyKEP

Prototype interplanetary trajectory and low-thrust optimization concepts with ESA algorithms.

FreeOpen Source

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PyKEP

PyKEP is developed by the European Space Agency's Advanced Concepts Team for rapid research prototyping in interplanetary trajectory design. It includes Lambert solvers, flyby routines, low-thrust models, trajectory legs, and optimization utilities.

Multiple-revolution Lambert problems
Low-thrust trajectory legs
Gravity assists
Numerical propagation

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Developer Tools & Libraries

QGIS

Analyze and publish Earth-observation and geospatial data in a mature open GIS.

FreeOpen Source

Developer Tools & Libraries

RocketPy

Simulate high-power rocket trajectories, weather, propulsion, and dispersion in Python.

FreeOpen Source

Ground Stations & Communications

SatNOGS

Build, connect, and use open ground stations through a global participatory network.

FreeOpen Source

Developer Tools & Libraries

Skyfield

Compute precise celestial and Earth-satellite positions in pure Python.

FreeOpen Source

Mission Design & Analysis

SPICE-enhanced Cosmographia

Visualize planetary missions and observation geometry directly from SPICE data.

Free

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SPICE-enhanced Cosmographia

NAIF's SPICE-enhanced Cosmographia produces interactive 3D visualizations of planetary ephemerides, spacecraft trajectories and orientations, instrument fields of view, footprints, and mission events using SPICE kernels and JSON catalogs.

Planet and moon ephemerides
Spacecraft trajectories and attitudes
Instrument fields of view
Footprints

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Developer Tools & Libraries

SU2

Run open CFD, multiphysics, and aerodynamic design optimization workflows.

FreeOpen Source

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SU2

SU2 is an open-source collection of C++ and Python tools for computational fluid dynamics, multiphysics simulation, design, and optimization. Aerospace applications include compressible flow, turbulence, adjoint methods, and aerodynamic shape design.

Compressible and incompressible CFD
Turbulence models
Adjoint methods
Shape optimization

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Astrodynamics & Flight Dynamics

TudatPy

Run numerical propagation and estimation workflows through an open Python astrodynamics toolkit.

FreeOpen Source

Command, Control & Ground Systems

Yamcs

Operate spacecraft with an extensible telemetry, commanding, and automation stack.

CommercialFree

OffWorldly Marketplace

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