QR Code A 2D matrix barcode storing more data in less space than traditional barcodes. Ubiquitous in mobile internet for bridging online/offline experiences.

Core Features：

• Arbitrary Content Generation: Encodes text, URLs, contacts, Wi-Fi credentials, etc., into QR codes.
• Real-Time Preview & Download: Adjustments apply instantly. Export as high-resolution PNG.
• Style Customization: Customize QR code size, foreground/background colors.
• Error Correction: Higher levels allow QR codes to scan even when partially damaged or obscured.

About Error Correction：

Core QR technology storing redundant data for error recovery.

• L (Low): Can correct ~7% of data errors.
• M (Medium): Can correct ~15% of data errors. (Default recommendation)
• Q (Quartile): Can correct ~25% of data errors.
• H (High): Can correct ~30% of data errors. Higher fault tolerance increases QR code complexity. Use Q or H level when embedding logos.