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Open-source aviation, hand-picked

Download aircraft software worth your runway time

Flight simulators, ADS-B radar receivers, autopilots, aircraft design toolchains and 3D models — 89 free projects, each linking straight to its GitHub source and release downloads.

Browse all 89 projects Read the buying-free guides
89curated projects
143k+GitHub stars combined
6categories
100%free & open source

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Drones & UAV Software★ 16,059

ardupilot

ArduPlane, ArduCopter, ArduRover, ArduSub source

C++GPL-3.0
Drones & UAV Software★ 12,794

PX4-Autopilot

PX4 Autopilot Software

C++BSD-3-Clause
Drones & UAV Software★ 11,657

betaflight

Open Source Flight Controller Firmware

CGPL-3.0
3D Models & Scenery★ 6,529

ODM

A command line toolkit to generate maps, point clouds, 3D models and DEMs from drone, balloon or kite images.

PythonAGPL-3.0
Flight Simulators★ 5,415

aircraft

The A32NX & A380X Project are community driven open source projects to create free Airbus aircraft in…

TypeScriptGPL-3.0
Drones & UAV Software★ 5,407

ExpressLRS

High Performance Open Source Radio Control Link

CGPL-3.0
Drones & UAV Software★ 5,023

qgroundcontrol

Cross-platform ground control station for drones (Android, iOS, Mac OS, Linux, Windows)

C++Apache-2.0
Drones & UAV Software★ 4,266

inav

INAV: Navigation-enabled flight control software

CGPL-3.0
3D Models & Scenery★ 4,218

WebODM

User-friendly, commercial-grade software for processing aerial imagery. Download it for free!

PythonAGPL-3.0
Drones & UAV Software★ 3,423

Fast-Planner

A Robust and Efficient Trajectory Planner for Quadrotors

C++GPL-3.0
Flight Tracking & Radar★ 3,336

skylight

Project the aircraft passing overhead onto your ceiling in real time, from an RTL-SDR — with a live sky…

TypeScriptMIT
Drones & UAV Software★ 3,276

Prometheus

Open source software for autonomous drones.

C++Apache-2.0

Browse by category

Flight Simulators

Free flight simulators, air traffic control sims and flight-model software you can download and run today.

20 projects

Flight Tracking & Radar

ADS-B decoders, plane radar displays and live flight tracking projects for plane spotters and avgeeks.

20 projects

Drones & UAV Software

Autopilot stacks, ground control stations, telemetry links and simulation tools for UAV builders.

14 projects

Aircraft Design & Engineering

Aerodynamics, airfoil analysis, flight dynamics and aircraft design optimisation toolchains.

18 projects

Sim Addons & Mods

Community aircraft addons, cockpit mods, radios and realism packs for MSFS, X-Plane and DCS.

11 projects

3D Models & Scenery

Aircraft 3D models, liveries, scenery generators and mesh tooling for simulators and rendering.

6 projects

How this directory works

1. Curated, not scraped

We track GitHub for aviation projects, score them for relevance, and drop anything abandoned or off-topic. 89 survive out of several thousand candidates.

2. Direct to source

Every card links to the original repository, its latest release page and a source archive — no mirrors, no repackaged installers, no paywalls.

3. Licence stays visible

Each project page shows the licence, language, activity date and star count so you can judge maturity before you download.

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