If you are looking for tools to build or simulate a swarm, these industry-standard platforms are available for free:
Setting up a drone swarm generally requires coordinating hardware and software to act as a unified entity. Drone Swarm Free Download
: You will typically need one radio telemetry module per drone to connect them to a central Ground Control Station (GCS). If you are looking for tools to build
For those researching the theory behind swarm technology, you can download these academic guides: and control your own drone swarms.
While there is no single software titled "Drone Swarm" that is widely available for free download as a consumer application, you can download several free open-source frameworks and simulators to design, simulate, and control your own drone swarms. Free Open-Source Swarm Software
: A popular software-in-the-loop (SITL) environment that lets you simulate multiple drones in a virtual 3D space to test coordination algorithms without risking hardware. Essential Guides for Swarm Setup