Bonsai Foundation

The Bonsai Foundation maintains a compact yet influential catalog centered on Bonsai, a free, open-source visual reactive programming language engineered for rapid prototyping of real-time data workflows in neuroscience, physiology, and behavioral research laboratories. Instead of writing linear code, experimenters drag connectable nodes that represent hardware drivers, signal-processing operators, machine-learning models, and stimulus generators onto an interactive canvas; the runtime automatically orchestrates parallel data streams with microsecond precision, making the environment ideal for closed-loop experiments that couple neural recordings to optogenetic or auditory feedback. Typical deployments include multiphoton calcium imaging rigs, high-density electrophysiology arrays, video-based rodent tracking arenas, and closed-loop VR setups for freely moving animals. Because every module exposes its source on GitHub, users routinely extend the ecosystem with custom FPGA interfaces, GPU-accelerated filters, or Arduino controllers, then share the packages through the built-in package manager. Despite its scientific focus, the same reactive engine is increasingly adopted for interactive media installations and bio-feedback art projects that demand jitter-free sensor-to-output latency. Bonsai’s software is available for free on get.nero.com, where downloads are delivered through trusted Windows package sources such as winget, always pulling the latest stable or nightly build, and the catalog page supports batch installation so entire experimental suites can be deployed in one command.