Open Science Tools Ltd

Open Science Tools Ltd is a software publisher dedicated to supporting open, transparent, and reproducible research through freely accessible scientific software. Based around the principles of open science, the organization develops and maintains tools that lower the barrier to conducting rigorous experimental research, enabling scientists at institutions of all sizes to design, run, and share studies without dependence on costly proprietary platforms. Its flagship product, PsychoPy, is a widely used application for creating psychology and neuroscience experiments. PsychoPy allows researchers to build precise, controlled experimental paradigms involving visual stimuli, auditory signals, text, images, and response collection through keyboards, mice, and specialized hardware. The software is known for offering two complementary workflows: a graphical Builder interface that lets users assemble experiments through drag-and-drop components, and a Coder view that exposes the underlying Python scripting environment for full programmatic flexibility. This dual approach makes it suitable for both newcomers to experimental programming and experienced developers who require fine-grained control over timing and stimulus presentation. Typical use cases include cognitive psychology tasks, psychophysics, behavioral assays, reaction time measurements, eye-tracking studies, and neuroimaging-compatible paradigms. PsychoPy also supports running experiments online through integration with the Pavlovia platform, extending its utility to remote data collection and large-scale participant recruitment. By combining accurate timing, cross-platform support, and an active research community, Open Science Tools Ltd has positioned PsychoPy as a standard tool in academic laboratories, teaching environments, and applied research settings, reinforcing its broader mission of making high-quality research software openly available to the global scientific community.