QR Code & Barcode Generator - Create & Download Custom Codes Free
Create custom QR codes and barcodes instantly. Support for URLs, text, and 10+ barcode formats.
Size: 256px
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Pro Tip
Use High (H) error correction if you plan to add a logo or if the QR code might get damaged/dirty.
For Barcodes, CODE128 is the safest modern choice for alphanumeric data.
Generate custom QR codes and barcodes instantly in your browser. Our free tool offers complete customization - colors, sizes, and formats - ensuring high-quality, scannable results every time. Best of all, it works 100% client-side, so your sensitive data never leaves your device.
How to Use QR Code & Barcode Generator
Select Type
Choose between "QR Code" or "Barcode" using the tabs at the top of the tool.
Enter Content
For QR Codes, enter your URL, text, or data. For Barcodes, enter the alphanumeric sequence you want to encode.
Customize
Adjust settings such as size, colors (foreground/background), and error correction level to suit your needs.
Download
Once satisfied with the preview, click the "Download PNG" button to save your generated code.
Calculator Features
Instant Generation
See your QR code or barcode update in real-time as you type, with no delay.
Fully Customizable
Control colors, dimensions, and error correction levels to match your branding.
Multiple Formats
Support for versatile QR codes and various barcode standards (Code 128, UPC, EAN, etc.).
Privacy Focused
All code generation runs client-side. Your data is never sent to any server.
High-Quality Downloads
Export your creations as clear, crisp PNG images ready for professional use.
Complete Function List
- Real-time QR Code generation:
- Real-time Barcode generation:
- Customizable foreground and background colors:
- Adjustable size/dimensions:
- Error correction level selection (L, M, Q, H):
- Support for Code 128, UPC, EAN, Code 39, and more:
- High-resolution PNG download:
- Client-side processing for privacy:
- No sign-up required:
- Mobile-friendly interface:
Common Calculations & Examples
Example 1: Website URL
Problem: Create a QR code for a business website.
Steps:
- Select "QR Code" tab
- Enter "https://www.example.com"
- Adjust colors to match brand
- Download
Explanation: The tool encodes the URL into the QR pattern, allowing smartphone cameras to scan and open the link directly.
Example 2: Product Barcode
Problem: Generate a barcode for a product with ID "PROD-123".
Steps:
- Select "Barcode" tab
- Enter "PROD-123"
- Select format "CODE128"
- Download
Explanation: Code 128 is a high-density barcode symbology capable of encoding all 128 ASCII characters, making it ideal for alphanumeric product codes.