QR Code Generator
Generate QR codes from text or URLs with customizable size and download options. Create scannable QR codes for websites, contact info, WiFi passwords, and more.
QR Code Settings
QR Code Tips
- • Higher error correction levels allow the QR code to be read even if partially damaged
- • Larger sizes provide better scanning reliability, especially for complex data
- • URLs, WiFi credentials, contact info, and plain text work great in QR codes
- • Test your QR codes with different scanning apps to ensure compatibility
QR Code Preview
Your QR code will appear here
Enter text and click Generate to create a QR code
About QR Code Generator
A QR code generator is a versatile digital tool that creates scannable QR (Quick Response) codes from various types of content including URLs, text, contact information, WiFi credentials, and more. This tool produces high-quality QR codes with customizable sizes and formats that can be easily scanned by smartphones and QR code readers, making information sharing quick and convenient.
Why use a QR Code Generator?
Using a QR code generator enables instant sharing of information without typing, bridges the gap between physical and digital content, and provides a contactless way to share data that's perfect for modern mobile-first interactions. It eliminates errors from manual data entry, supports various content types, and creates professional-looking codes that enhance marketing materials, business cards, and digital experiences.
Who is it for?
This tool is perfect for marketers creating campaigns with trackable links, business owners sharing contact information and website URLs, restaurant owners creating digital menus, event organizers distributing information quickly, developers implementing QR code functionality, and educators sharing resources with students in a mobile-friendly format that works across all devices and platforms.
How to use the tool
Enter the content you want to encode (URL, text, contact info, WiFi details, etc.)
Select the desired QR code size and format options for your specific use case
Click generate to create your custom QR code with the specified parameters
Preview the generated QR code and test it with a mobile device or QR reader
Download the QR code image for use in print materials, websites, or digital displays
Frequently Asked Questions
How do I generate a QR code online?
Enter your data (URL, text, contact info, Wi-Fi password, location) and the tool generates a QR code instantly. Configurable size, error-correction level (L/M/Q/H), foreground/background colours, optional logo overlay. Download as PNG or SVG. Runs entirely in your browser — your data never leaves the device. QR codes work in any modern smartphone camera and most scanner apps.
What is a QR code?
QR (Quick Response) code is a 2D barcode invented by Denso Wave in 1994 for tracking automotive parts. Encodes data in a grid pattern that scanners can read in any orientation. Capacity: up to 7,000 numeric digits, 4,300 alphanumeric, 2,900 bytes, or 1,800 Kanji characters per code. Versions 1-40 (each version adds more grid modules for more data capacity). Error correction lets the code still scan when partially obscured (15% / 25% / 30% / 30% recovery for L/M/Q/H levels).
Is my data sent to a server?
No — QR code generation runs entirely in your browser via JavaScript libraries (qrcode.js, qr-code-styling). Your data never reaches a server, never gets logged. Verify in DevTools' Network tab: zero HTTP requests during generation. Safe for sensitive data (private URLs, contact info, Wi-Fi passwords).
What types of data can I encode in a QR code?
Anything text-based. Common types: URLs (most common — opens in browser), plain text, email addresses (`mailto:` URI), phone numbers (`tel:` URI), SMS (`sms:` URI), Wi-Fi credentials (`WIFI:T:WPA;S:network;P:password;`), vCard contacts, geographic coordinates (`geo:lat,lon`), calendar events (vEvent format). Most QR scanners recognize these URI schemes and take appropriate action (open URL, dial number, connect to Wi-Fi). For arbitrary data, use plain text.
What's the right error correction level?
Four levels: L (Low, 7% recovery), M (Medium, 15%), Q (Quartile, 25%), H (High, 30%). Higher correction = more redundancy = more visible code modules for the same data. Use **L** for clean digital display (websites, screens). Use **M** for printed material (default, balanced). Use **Q** when the QR will be printed on potentially damaged surfaces (packaging, outdoor signs). Use **H** when adding a logo overlay (the logo obscures part of the code; H lets it still scan).
Can I customize the QR code appearance?
Yes — most generators offer colour customization (foreground/background — keep high contrast for scanning), corner styling, module shape (square vs rounded vs dots), and centre logo overlay (place your brand mark in the middle of the code). Caveats: scanning depends on contrast and pattern recognition — heavy customization can break scanning on older scanners. Test the customized QR code with multiple scanner apps before mass-printing. The recognizable corner markers (three large squares at corners) must remain intact.
What's the optimal size for a printed QR code?
Rule of thumb: print size should be ~10% of the scanning distance. For a QR code scanned at 30cm (arm's length): print at 3cm × 3cm. For a poster scanned from 2 meters: 20cm × 20cm. Minimum practical size: 2cm × 2cm for short URLs at close range. Add a 'quiet zone' (white space around the code) — at least 4 modules wide. For smartphone-scanning QR codes in business cards, 2-3cm works; for large display posters, scale up generously.
When should I use QR codes vs traditional barcodes?
QR codes: long data (URLs, contact info, structured data), modern smartphone scanning, restaurant menus, payment apps, COVID check-ins. Traditional 1D barcodes ([Barcode Generator](/tools/barcode-generator/)): short identifiers (product codes, shipping labels, library books), POS scanners, industrial inventory. The two coexist; QR codes have largely won the consumer-facing use cases (most smartphones natively scan QR via the camera). For internal asset tracking with specific scanner hardware, 1D barcodes may still be cheaper and faster.
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