Learn CODEORG-BLOCKLY with Real Code Examples
Updated Nov 26, 2025
Installation Setup
Blockly runs directly in modern web browsers
No installation required for Code.org integration
Optional: download Blockly library for custom projects
Include Blockly JS/CSS files in your web project
Initialize Blockly workspace in a web page using JavaScript
Environment Setup
Include Blockly JS and CSS in HTML page
Create a div for the workspace
Initialize Blockly workspace via JavaScript
Load custom blocks if needed
Test block dragging, snapping, and code generation
Config Files
Blockly JS and CSS files
Optional JSON for custom blocks
HTML file to embed Blockly workspace
Configuration for toolbox categories
Optional localization files
Cli Commands
No CLI required; runs in browser
Optional commands for building custom blocks
Use npm for Blockly library integration
Debug via browser console
Export workspace JSON or generated code
Internationalization
Supports multiple languages for blocks and tooltips
Community translations available
Custom blocks can be localized
Text labels fully Unicode-compatible
Platform integration supports global classrooms
Accessibility
Web-based, works on multiple devices
Keyboard navigation supported
Open-source with documentation
Can integrate with educational accessibility tools
Tutorials and guides for teachers and students
Ui Styling
HTML/SVG-based workspace visualization
Toolbox categories with icons and colors
Customizable CSS for block appearance
Supports responsive design for browser-based apps
Interactive highlighting for valid connections
State Management
Workspace manages block state
Variables block manages program data
Custom block logic maintains internal state
Undo/redo tracks changes in workspace
Event listeners handle runtime interactions
Data Management
Blocks represent abstract syntax tree nodes
Workspace state can be exported as JSON
Generated code can store program logic externally
Custom block parameters manage user input
Data flow handled through block connections