QR Code Generator Instantly
Create QR codes for URLs, text, and more. Download as PNG or SVG—completely free.
QR Code Generator
Understanding QR Codes
QR Code (Quick Response Code) is a two-dimensional barcode invented in 1994 by Denso Wave, a Japanese automotive company. Unlike traditional barcodes that store information horizontally, QR codes store data both horizontally and vertically, allowing them to hold significantly more information—up to 7,089 numeric characters or 4,296 alphanumeric characters.
QR codes work by encoding data into a pattern of black and white squares. When scanned by a camera or QR code reader, the pattern is decoded back into the original information. The three large squares in the corners (position markers) help scanners quickly identify and orient the code, enabling scanning from any angle.
One of the key features of QR codes is built-in error correction using Reed-Solomon error correction. This means QR codes can still be read even if up to 30% of the code is damaged or obscured, making them highly reliable for real-world use in various conditions.
helpHow it works
- 1
Enter your URL, phone number, email, or plain text into the input field above. The QR code will update automatically as you type.
- 2
Adjust settings like size, color, and error correction level in the sidebar. Higher error correction allows damaged codes to still work.
- 3
Download your QR code in high-quality PNG format for printing or SVG for scalable vector graphics. All processing happens in your browser.
quizFrequently Asked Questions
Do the QR codes expire?
No, static QR codes generated by this tool never expire. They encode the data directly into the image, so they work permanently without requiring any external service.
Is it secure to use this generator?
Absolutely. All QR code generation happens locally in your browser. We do not store, transmit, or have access to any of the text or URLs you encode.
What is Error Correction?
Error correction allows QR codes to be read even if partially dirty, damaged, or obscured. Level L allows 7% damage recovery, M allows 15%, Q allows 25%, and H allows 30%.
What's the difference between PNG and SVG?
PNG is a raster format best for web display and moderate-size printing. SVG is vector-based and can be scaled infinitely without quality loss, ideal for large prints and professional design work.
How much data can a QR code store?
QR codes can store up to 7,089 numeric digits, 4,296 alphanumeric characters, or 2,953 bytes of binary data. However, smaller codes are easier to scan, so keep content concise when possible.
Can I change the QR code color?
Yes, you can customize the foreground color. However, ensure sufficient contrast with the background (always white) for reliable scanning. Dark colors work best.
Will my QR code work on all devices?
Yes, QR codes are a standardized format (ISO/IEC 18004) readable by any compliant scanner or camera app on smartphones, tablets, and dedicated scanners.
What's the minimum size for printing?
For reliable scanning, print QR codes at least 2cm x 2cm (0.8" x 0.8"). Larger is better for scanning from a distance. Test your printed codes before mass production.
Can I track QR code scans?
Static QR codes (like ours) can't track scans directly. For analytics, use dynamic QR codes from services that redirect through their servers, or add UTM parameters to your URLs.
Are QR codes case-sensitive?
Yes, the data encoded in QR codes is case-sensitive. "Example.com" and "example.com" would create different QR codes and lead to different destinations.
Can I add a logo to my QR code?
While our tool doesn't support logos directly, you can add a small logo in the center using image editing software. Keep it under 30% of the QR code area and use high error correction (H level).
What types of data work best in QR codes?
URLs, WiFi credentials, contact information (vCard), email addresses, phone numbers, and plain text all work excellently. Avoid very long URLs—use URL shorteners if needed.
Why won't my QR code scan?
Common issues include insufficient contrast, too small size, poor print quality, or camera focus problems. Ensure good lighting, clean the camera lens, and try increasing the size or error correction level.
Can QR codes replace barcodes?
QR codes can store much more data and work damaged, but traditional barcodes are still preferred in retail due to established infrastructure. QR codes excel in marketing, payments, and authentication.
Are there security risks with QR codes?
QR codes themselves are safe, but they can link to malicious websites. Always verify the destination URL before visiting, especially from unknown sources. Modern phones preview URLs before opening them.
starPopular Use Cases
Marketing Campaigns
Add QR codes to posters, flyers, and business cards to drive traffic to websites, landing pages, or promotional offers.
Contactless Payments
Enable quick payments through payment apps, cryptocurrency wallets, or payment links for businesses and individuals.
Digital Menus
Restaurants can display digital menus accessible via QR codes on tables, eliminating physical menus and enabling easy updates.
WiFi Sharing
Share WiFi credentials instantly without typing passwords. Guests can connect by simply scanning a QR code.
Event Tickets
Digital tickets with unique QR codes enable quick entry verification and prevent counterfeiting at events and venues.
Inventory Management
Track products, assets, and equipment with QR codes for efficient inventory management and asset tracking systems.
tips_and_updatesDesign Best Practices
Ensure Sufficient Contrast
Always use dark colors on light backgrounds. Avoid light-colored QR codes or low-contrast combinations that scanners struggle to read.
Test Before Printing
Always test your QR code with multiple devices and scanning apps before mass printing. Check scannability at the intended viewing distance.
Include a Call-to-Action
Add text like "Scan for menu" or "Scan to visit website" near your QR code so people know what to expect when scanning.
Maintain Quiet Zone
Leave white space (quiet zone) around the QR code equal to 4 times the width of a single module. This helps scanners detect the code boundaries.
Use High Error Correction for Logos
If adding a logo or image to the center, use error correction level H (30%) to ensure the code remains scannable despite the obstruction.
Optimize Content Length
Shorter content creates simpler, easier-to-scan QR codes. Use URL shorteners for long links and keep text concise for optimal scanning reliability.