Tutorials
Step-by-step tutorials to help you learn Quagga2 by building real examples. These are learning-oriented guides designed to help beginners get hands-on experience.
Available Tutorials
Your First Barcode Scan ⭐ Start Here
Build a complete barcode scanner web app from scratch. You’ll learn how to:
- Set up HTML structure
- Initialize Quagga2
- Handle camera permissions
- Process detected barcodes
- Display results to users
| Time: 15 minutes | Difficulty: Beginner |
Decoding Static Images
Learn to decode barcodes from image files instead of camera feeds. Perfect for:
- Photo upload features
- Batch processing
- Server-side Node.js applications
- Testing without a camera
| Time: 10 minutes | Difficulty: Beginner |
Using with React
Integrate Quagga2 into a React application. Covers:
- Component lifecycle management
- Handling cleanup
- State management
- Common pitfalls and solutions
| Time: 20 minutes | Difficulty: Intermediate |
Using with Node.js
Use Quagga2 in server-side Node.js applications. Learn to:
- Process images from filesystem
- Handle image buffers
- Batch decode multiple images
- Build CLI tools
| Time: 15 minutes | Difficulty: Intermediate |
Prerequisites
Before starting these tutorials, you should have:
- Basic HTML/JavaScript knowledge
- A text editor
- A web server (or ability to run
npx serve) - A device with a camera (for live scanning tutorials)
Tutorial Approach
These tutorials follow a learning-by-doing approach:
- Complete examples - Each tutorial provides full working code
- Progressive complexity - Start simple, add features incrementally
- Hands-on practice - Type the code yourself to build muscle memory
- Real-world scenarios - Build things you’ll actually use
Need Help?
If you get stuck:
- Check the API Reference for method details
- Review the Configuration Guide
- Ask in Gitter Chat
- Search GitHub Issues
Contributing
Found a bug in a tutorial or have an idea for a new one? Open an issue or submit a pull request!
Next: Start with Your First Barcode Scan →