Learn CODEORG-BLOCKLY with Real Code Examples

Blockly uses drag-and-drop blocks representing code constructs like loops, conditions, and functions.

It generates readable code in JavaScript, Python, PHP, Lua, and Dart behind the scenes.

Designed to teach programming logic without syntax errors.

Supports integration into educational games and tutorials.

Encourages problem-solving and computational thinking.

Block types: logic, loops, math, text, lists, variables, functions

Workspace for arranging blocks visually

Real-time code preview in multiple languages

Customizable toolbox for lesson-specific blocks

Events and actions blocks for interactive projects

Blocks - visual code units representing statements or expressions

Workspace - canvas to drag and arrange blocks

Toolbox - categorized block palette

Connections - how blocks attach to form valid code

Code generation - convert blocks to JavaScript, Python, etc.

Single HTML page with Blockly embedded

Optional JSON files for custom block definitions

Workspace initialization via JavaScript

Optional CSS for styling workspace

Optional server integration for saving progress

Drag blocks from toolbox into workspace

Snap blocks together to create logical flow

Test and run the generated code in preview

Modify block arrangements to fix or improve logic

Export code for use in other applications or platforms

Beginner: build simple loops and conditions

Intermediate: create interactive games and puzzles

Advanced: define custom blocks and extensions

Expert: integrate Blockly into web applications

Architect: design large-scale educational platforms

Blockly vs Scratch -> Blockly: flexible, web-based; Scratch: highly gamified, student-friendly

Blockly vs p5.js -> Blockly: visual blocks for learning; p5.js: text-based creative coding

Blockly vs Python -> Blockly: beginner visual coding; Python: text-based programming

Blockly vs Tynker -> Blockly: open-source, customizable; Tynker: commercial platform

Blockly vs App Inventor -> Blockly: web-based code blocks; App Inventor: mobile app focus

2012 - Blockly initial release by Google

2013 - Integration with educational platforms

2015 - Added support for multiple languages

2018 - Expanded custom block capabilities

2020–2025 - Ongoing updates and integration in Code.org and other learning platforms

Block - visual representation of a code construct

Workspace - area to arrange blocks

Toolbox - palette of available blocks

Custom block - user-defined block for reusable logic

Code generator - converts blocks into textual code