Timeline editing
Multi-track NLE timeline with clips, keyframes, masks, nested compositions, and a global graph editor.
MasterSelects is a browser-based media editor and an agent-friendly foundation for creative tools. Edit video, mix audio, animate graphics, build 3D scenes, and work with live visuals in one workspace with WebGPU rendering.
Run it locally from source to build new effects, panels, and workflows with your coding agent while working on your project. Contribute useful additions so other people and their agents can build on them. The interface is optimized for touch and iPad; phone workflows are still being refined.
Read about MasterSelects, start with the documentation overview, or open the editor.
Timeline editing
Multi-track NLE timeline with clips, keyframes, masks, nested compositions, and a global graph editor.
Motion design
Shape layers, appearance stacks, GPU-instanced replicators with modifiers and falloffs, expressions, presets, and templates.
WebGPU engine
Real-time compositing, effects, and export on your GPU — preview and export share one evaluated frame model.
AI-assisted workflows
Semantic AI tools for every editing capability, from clip creation to motion templates.