QR Code Generator
Generate QR codes from any text, URL, email, phone number, or WiFi credentials. Customize size, colors, and error correction level. Download as PNG. All processing happens in your browser.
Generate QR codes instantly from any text, URL, email, phone number, or WiFi credentials. Customize the size, colors, and error correction level. Download your QR code as a high-quality PNG image. All processing happens in your browser—your data is never sent to any server.
100% Client-Side Processing
Your QR codes are generated entirely in your browser using the qrcode library and HTML Canvas. No data is ever sent to any server. This tool works offline after the page loads.
How to Use the QR Code Generator
- Enter your content — type or paste any text, URL, email address, phone number, or WiFi credentials into the input field.
- Use quick presets — click URL, Email, Phone, or WiFi buttons to pre-fill the correct format for common QR code types.
- Customize appearance — adjust the QR code size (100-600px), change foreground and background colors, and set the error correction level.
- Preview in real-time — your QR code updates instantly as you type or change settings.
- Download or copy — click "Download PNG" to save the image, or "Copy Image" to paste it directly into other apps.
What is a QR Code?
A QR code (Quick Response code) is a two-dimensional barcode invented in 1994 by Denso Wave. Unlike traditional barcodes that store data in one direction, QR codes store data both horizontally and vertically, allowing them to hold significantly more information — up to 4,296 alphanumeric characters.
QR codes include built-in error correction using Reed-Solomon codes, which means they can still be read even if part of the code is damaged or obscured. The four error correction levels (L, M, Q, H) let you choose between data density and damage tolerance.
Error Correction Levels
| Level | Recovery | Best For |
|---|---|---|
| L (Low) | ~7% damage recovery | Maximum data capacity, clean environments |
| M (Medium) | ~15% damage recovery | General purpose (default), good balance |
| Q (Quartile) | ~25% damage recovery | Industrial use, printed materials |
| H (High) | ~30% damage recovery | Logos on QR codes, outdoor use |
Common Use Cases
Website URLs
Link to any website, landing page, or online resource
Contact Info
Share vCards with name, phone, email, and address
WiFi Access
Share WiFi credentials — guests scan to connect instantly
Payments
Link to payment pages, cryptocurrency addresses, or invoices
Email & SMS
Pre-compose emails or text messages with a scan
Locations
Share GPS coordinates or Google Maps links
Related Tools
Need to encode data in other formats? Try our Base64 Encoder/Decoder for text encoding, or our URL Encoder/Decoder for URL-safe encoding. For generating secure passwords, check out our Password Generator.
Frequently Asked Questions
How much data can a QR code hold?▼
A QR code can store up to 7,089 numeric characters, 4,296 alphanumeric characters, or 2,953 bytes of binary data. The actual capacity depends on the error correction level — higher error correction reduces capacity. For most URLs and text, this is more than sufficient.
Can I use custom colors for my QR code?▼
Yes! You can customize both the foreground (dark modules) and background colors using the color pickers. Ensure sufficient contrast between the two colors for reliable scanning. Dark foreground on light background works best. Avoid low-contrast combinations like yellow on white.
What error correction level should I use?▼
For most uses, M (Medium, 15%) is recommended as it provides a good balance between data capacity and error recovery. Use L for long URLs where you need maximum capacity, or H if the QR code will be printed on materials that may get damaged or if you plan to add a logo overlay.
How do I create a WiFi QR code?▼
Click the "WiFi" preset button and replace the placeholder values. The format is: WIFI:T:WPA;S:YourNetworkName;P:YourPassword;;. Change WPA to WEP or nopass for different security types.
Is this QR code generator free?▼
Yes, this QR code generator is completely free with no limits on usage. There are no watermarks, no sign-up required, and no restrictions. All QR codes are generated locally in your browser, so your data stays private.
Frequently Asked Questions
❓ Is this tool free?
Yes! All our tools are completely free. No registration, no hidden charges, no ads. Just open and use.
🔒 Is my data safe?
Absolutely. All calculations happen in your browser. We don't store, send, or track any of your data. Everything is processed locally on your device.
📱 Can I use this on mobile?
Yes! All our tools are fully responsive and work perfectly on smartphones, tablets, and desktops.
🌐 Do I need internet?
No! Once the page loads, you can use the tool completely offline. All calculations happen in your browser without any server connection.