Primitive
Tool
Describe a small tool in plain words and it builds itself: filters, analysis and conversions that run live on the canvas.
The Tool node turns a plain-language request into a working node. Type what it should do, such as “Halftone the image, with a slider for dot size,” click Generate, and Fuser builds a tool with its own inputs, controls, and result.
- Live tools run instantly in your browser and update while you drag a slider. They're free.
- Cloud tools use AI to understand or process content. They run when you press Run and cost credits.
- Every tool you build is saved to the Tools tab of the Library panel, ready to place in any project.
For the complete guide, start with the dedicated Tools docs.
Tools overview
What tools are good at, and how Live and Cloud tools differ.
Building a tool
Describe a tool and watch it build, step by step.
Running tools
Live updates, Cloud runs, and keeping your results.