Free Online QR Code Maker Generate QR codes from text, URLs, or any data with customizable size and colors.

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QR Code Generator

Generate QR codes from text, URLs, or any data with customizable size and colors.

Enter Content

Type or paste text, URL, email, phone number, or any data.

Customize

Set QR code size, foreground color, and background color.

Download QR Code

Generate and download your QR code as a PNG image.

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What Is QR Code Generator?

A QR code generator that creates scannable QR codes from any text input — URLs, plain text, email addresses, phone numbers, WiFi credentials, or any data. Customize the QR code with different sizes, foreground and background colors, and error correction levels. Uses the qrcode library for reliable, standards-compliant QR generation. Output is a high-resolution PNG for printing, sharing, or embedding.

Why Use QR Code Generator?

Supports URLs, text, email, phone, and WiFi data
Customizable colors and sizes
High error correction for reliable scanning
Download as high-resolution PNG

Common Use Cases

Marketing

Create QR codes for business cards, flyers, and promotional materials.

Events

Generate ticket QR codes, event links, and registration URLs.

Restaurants

Create QR codes for digital menus and ordering systems.

Contact Sharing

Encode vCard data for easy contact information sharing.

Technical Guide

QR codes are generated using the qrcode library implementing ISO/IEC 18004. The library encodes input data into a binary matrix with error correction using Reed-Solomon codes. Error correction levels (L/M/Q/H) trade capacity for redundancy. The matrix is rendered onto Canvas with configurable module size and colors. Version is auto-selected based on data length. Output is PNG via toDataURL.

Tips & Best Practices

1
Use Level H error correction for printed QR codes
2
Keep URLs short for smaller, easier-to-scan codes
3
Test your QR code with multiple scanners before printing
4
High contrast ensures reliable scanning

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Frequently Asked Questions

Q What can I encode?

Any text — URLs, plain text, email addresses, phone numbers, WiFi credentials, and more.

Q How large should it be?

For print, at least 2x2cm. For digital, 200x200px minimum.

Q What is error correction?

Redundancy allowing scanning even if part is damaged. Level H recovers up to 30%.

Q Can I change colors?

Yes — customize foreground and background colors. Keep high contrast.

Q Data length limit?

QR codes can encode up to ~4,296 alphanumeric characters.

About This Tool

QR Code Generator is a free online tool by FreeToolkit.ai. All processing happens directly in your browser — your data never leaves your device. No registration or installation required.