PseudoRun - IGCSE Pseudocode Editor EN

Complete Offline Pseudocode Learning Environment

PseudoRun is the ultimate educational tool for IGCSE and A-LEVELS Computer Science students, now available as a Firefox extension that works completely offline. This comprehensive pseudocode editor and simulator helps students master Cambridge programming concepts with professional features and an intuitive interface.

Key Features

🔧 Professional Code Editor
- CodeMirror 6 integration with advanced syntax highlighting
- Real-time syntax validation with 500ms debounced error checking
- Auto-save functionality with browser localStorage
- Bracket matching, line numbers, and code folding
- Multiple themes including light and dark modes

🎓 Educational Tools
- 22 Built-in Example Programs covering the complete IGCSE syllabus
- Interactive Tutorial with step-by-step learning modules
- Comprehensive Syntax Reference with Cambridge pseudocode specifications
- Practice Problems with varying difficulty levels
- Exam Mode with customizable timer for test simulation

🐛 Advanced Debugging
- Step-by-step execution with variable state visualization
- Breakpoint functionality for code analysis
- Watch variables and expression evaluation
- Call stack tracking for procedure/function debugging
- Runtime error detection with clear error messages

📊 Output and Visualization
- Animated output display showing execution flow
- Variable state monitoring during execution
- Input handling for interactive programs
- File I/O operations support (CREATE, OPEN, WRITE, CLOSE)
- Trace table generation for algorithm analysis

💾 Local Program Management
- Save unlimited programs in browser localStorage
- Organized program library with search and categorization
- Export/import programs as text files
- Program duplication and versioning support
- Local program sharing capabilities

📤 Export and Documentation
- Export pseudocode as PDF with proper formatting
- Generate DOCX documents for assignments
- Create PNG images for presentations
- Print-friendly formatting with line numbers
- Customizable export themes and styles

Complete Offline Functionality

This extension operates entirely without internet connection:
- ✅ No network requests - works anywhere, anytime
- ✅ No authentication required - always in guest mode
- ✅ Local data storage - all work saved on device
- ✅ No data collection - complete privacy protection
- ✅ Fast performance - no loading delays

Educational Benefits

For Students:
- Master IGCSE pseudocode syntax and structure
- Practice problem-solving skills with instant feedback
- Prepare for exams with realistic simulation
- Develop computational thinking and algorithm design
- Build confidence in programming fundamentals

For Teachers:
- Demonstrate pseudocode concepts in class
- Create custom exercises and examples
- Monitor student progress offline
- Generate teaching materials and examples
- Facilitate collaborative learning activities

Supported IGCSE Pseudocode Features

Data Types and Variables:
- INTEGER, REAL, BOOLEAN, STRING, CHAR types
- Variable declaration and assignment
- Array declaration and manipulation
- Constant definitions

Control Structures:
- IF/THEN/ELSE conditional statements
- FOR, WHILE, REPEAT loops
- Nested control structures
- Loop counters and iteration variables

Procedures and Functions:
- Procedure definition and calling
- Function return values
- Parameter passing (by value and reference)
- Recursion support with depth limits

Built-in Functions:
- LENGTH() for string/array operations
- SUBSTRING() for string manipulation
- UCASE()/LCASE() for case conversion
- INT()/REAL()/STRING() for type conversion
- ROUND() for number rounding
- RANDOM() for generating random numbers

File Operations:
- CREATE, OPEN, WRITE, CLOSE file commands
- READ and SEEK operations
- EOF detection
- Error handling for file operations

Output Operations:
- OUTPUT and PRINT statements
- Formatted output with spacing
- New line control
- Variable and expression output

Technical Specifications

• Firefox Compatibility: Version 142.0 and later
• Manifest Version: 2 (Firefox optimized)
• Storage: Browser localStorage (up to 10MB)
• Performance: Optimized for offline execution
• Security: No data collection or transmission
• Size: Lightweight (under 600KB)
• Language: TypeScript/React with CodeMirror 6

Installation and Usage

1. Install Extension: Click "Add to Firefox" or load via about:debugging
2. Open Editor: Click the PseudoRun icon in your Firefox toolbar
3. Start Coding: Write pseudocode with real-time syntax highlighting
4. Execute Programs: Click "Run" to see animated output execution
5. Learn and Practice: Access tutorial, examples, and practice problems
6. Save Work: Programs auto-save locally for continued learning

Perfect for Educational Institutions

• Classroom Use: Works in computer labs without internet
• Exam Environments: Reliable offline functionality
• Student Assignments: Export and submit work easily
• Curriculum Alignment: Covers Cambridge IGCSE Computer Science syllabus
• Accessibility: Clean, simple interface suitable for all skill levels

Privacy and Security

PseudoRun prioritizes student privacy and …