For audio, look for .MP3 or .WAV. For visuals, .GIF or .MP4 are the standard for compatibility across devices. Conclusion
Several developers have created free, browser-based tools that act as "live" stim files: stim files free
Search the tag #stimmy or #visual stim. Creators often post high-quality GIFs and short loops specifically designed for neurodivergent users. For audio, look for
An interactive generative art tool that creates beautiful, symmetrical visual stims as you move your mouse. stim files free