Coding

Build, run, and export logic flows using interactive visual code blocks. Features variables, while loops, conditionals, dynamic canvas wire connections.

What this tool does

Visual Code Blocks lets you assemble small programs as connected nodes on a canvas. Run the flow in the browser, inspect its output and execution log, or view the generated JavaScript representation.

Who this is for

• Students learning control flow and variables
• Makers prototyping a small algorithm visually
• Developers explaining loops, branches, and data flow to a teammate

How to use this tool

1. Add blocks or start from the counter, even/odd, or dynamic styler template
2. Drag blocks into place and connect output ports to matching input ports
3. Configure variables, expressions, IF branches, WHILE loops, and print steps
4. Run the program and review output and execution logs; use Stop or Reset when needed
5. Open Code to inspect generated JavaScript, or Save/Load the block graph as JSON

Inputs

Inputs are the blocks placed on the canvas, their values and expressions, and the connections between their ports. The canvas also accepts a saved JSON program through the Load control.

Outputs

The tool runs the connected flow and shows printed values in the output panel with an execution log beside it. Code displays a generated JavaScript view, while Save downloads the visual program as JSON. This is an educational browser sandbox, not a general-purpose JavaScript runtime.

Example use cases

• Build a counter with a WHILE loop
• Classify a value through an IF/else branch
• Demonstrate how a visual flow maps to JavaScript

Frequently asked questions