MasterSelects

MasterSelects is a web-based media editor that runs locally in your browser using WebGPU for GPU-accelerated rendering. It supports multitrack video editing, audio mixing with spectral analysis, motion graphics with keyframing and tracking, 3D scene building, and live visual inputs—all in a single workspace with a timeline interface optimized for touch and iPad devices.

The editor is designed as an agent-friendly foundation for creative tools. You can run it locally from source and have AI coding agents build custom effects, panels, or workflows for your specific project needs. The maker says it was built entirely with Claude. The codebase includes documentation, reusable components, and a local bridge for editor control, making it easy to extend and contribute improvements back to the community.