QR Code Generator
Generate QR codes from text, URLs, WiFi credentials, or contact info. Download as PNG.
Input
Size:
Output
Enter text and click Generate
Frequently Asked Questions
What can I encode in a QR code?
QR codes can encode text, URLs, WiFi credentials (WIFI:T:WPA;S:networkname;P:password;;), email addresses (mailto:), phone numbers (tel:), SMS messages, vCards for contact information, and calendar events. Some formats support specialized data like payment information or deep links to apps.
What error correction level should I use?
Use Level L (7% recovery) for digital displays where the code stays pristine. Choose Level M (15%) as a general-purpose default. Level Q (25%) works well for printed materials that may wear or when adding a logo overlay. Level H (30%) is best for small codes or outdoor applications where maximum durability is essential.
Why are my QR codes hard to scan?
Several factors affect scan reliability: too much data creates too many small modules, low contrast between dark and light modules, insufficient quiet zone (white space) around the code, and physical damage or smudging. For printed codes, ensure at least 300 DPI resolution and test with actual phone cameras before mass production.
Is my data sent to a server?
No. QR codes are generated entirely in your browser using a JavaScript library. Your data never leaves your device, making this tool safe for sensitive information like personal URLs or private WiFi credentials.
Can I customize QR code colors?
This tool generates PNG images, which you can edit in any image software to change colors. Remember that scanners need sufficient contrast between the modules and background. Dark codes on light backgrounds scan most reliably, while colored codes on colored backgrounds may fail with some scanners.
What's the difference between PNG and SVG output?
PNG produces a raster image at a specific resolution, which is ideal for print materials and consistent display across devices. This tool currently exports PNG format. SVG would provide vector-quality codes that scale infinitely without pixelation, useful for large-format printing or responsive designs where the code size varies.