Frequently Asked Questions

Yes, Ukiyo QR is completely free to use. There are no hidden fees, subscriptions, or limitations on the number of QR codes you can generate. We believe in providing accessible tools for everyone.

Our service is supported by optional, non-intrusive advertising that doesn't interfere with your QR code generation experience.

No account creation is required. You can start generating QR codes immediately without providing any personal information. This approach protects your privacy and makes our service instantly accessible.

"Ukiyo" (浮世) is a beautiful Japanese concept meaning "floating world" or "living in the moment." It represents finding beauty in life's fleeting nature and inspired the famous ukiyo-e art movement.

Our app features Hokusai's "The Great Wave off Kanagawa," a masterpiece of ukiyo-e art, reflecting our philosophy of creating beautiful, momentary connections through QR codes.

You can create QR codes for:

• URLs and websites - Direct links to any web page
• Plain text - Any text content up to 2,953 characters
• Contact information - vCard format for easy contact saving
• WiFi passwords - Automatic network connection
• SMS messages - Pre-filled text messages
• Email addresses - Pre-composed emails
• Phone numbers - Direct calling links

QR codes are generated as high-quality PNG images with transparent backgrounds. PNG format ensures:

• Crisp, clear images at any size
• Lossless compression for perfect scanning
• Transparent backgrounds for easy integration
• Wide compatibility across all devices and platforms

QR code capacity depends on the data type and error correction level:

• Numeric data: Up to 7,089 characters
• Alphanumeric data: Up to 4,296 characters
• Binary data: Up to 2,953 bytes
• Kanji characters: Up to 1,817 characters

However, larger QR codes become more complex and harder to scan. We recommend keeping content concise for optimal scanning performance.

Yes, QR codes work on virtually all modern smartphones:

• iPhone: Built-in camera app (iOS 11+) or Control Center
• Android: Google Lens, camera app, or dedicated QR apps
• Older devices: Download free QR scanner apps

Our QR codes use standard formatting that ensures maximum compatibility across all devices and scanning applications.

Common scanning issues and solutions:

• Size: QR code should be at least 1 inch (2.5cm) for close scanning
• Lighting: Ensure adequate lighting without glare or shadows
• Distance: Hold device 4-6 inches away from the code
• Quality: Avoid blurry, damaged, or low-resolution codes
• Contrast: Ensure dark code on light background
• App: Try different QR scanner apps if one doesn't work

No, we don't store your QR code data. Here's how we protect your privacy:

• Temporary processing: Data is processed only during generation
• Immediate deletion: All input data is deleted after QR creation
• No databases: We don't maintain user data databases
• Local processing: When possible, generation happens in your browser

QR codes themselves are secure, but users should be cautious about:

• Source verification: Only scan codes from trusted sources
• URL preview: Check destination URLs before visiting
• Suspicious content: Be wary of unexpected downloads or login requests
• Physical tampering: Verify codes haven't been replaced or altered

Our generator creates standard, safe QR codes. Security depends on the content you encode and where you use the codes.

QR codes themselves cannot contain viruses - they're just encoded text. However, they can link to malicious websites or downloads. Safety tips:

• Always preview URLs before visiting
• Don't download files from unknown QR codes
• Use reputable QR scanner apps with security features
• Keep your device's security software updated

Yes, you can use Ukiyo QR for any commercial purpose including:

• Marketing campaigns and promotional materials
• Business cards and networking
• Product packaging and information
• Restaurant menus and ordering systems
• Event management and ticketing
• Customer feedback and surveys

There are no restrictions on commercial use, and no attribution is required (though appreciated).

Recommended QR code sizes for different applications:

• Business cards: 0.8 - 1 inch (2-2.5cm)
• Flyers and brochures: 1 - 1.5 inches (2.5-4cm)
• Posters and signs: 2 - 4 inches (5-10cm)
• Billboards: 6+ inches (15+ cm)

Rule of thumb: QR code should be readable from the expected scanning distance. Test before mass printing!

QR codes generated by Ukiyo QR never expire. They are static codes that will work indefinitely as long as:

• The destination website remains accessible
• The QR code image remains readable
• The encoded information stays relevant

However, if you link to a website that goes offline or changes URL, the QR code will no longer work as intended.

Our static QR codes don't include tracking capabilities, which protects user privacy. For analytics, you can:

• Use URL shorteners with analytics (bit.ly, tinyurl.com)
• Add UTM parameters to track in Google Analytics
• Create dedicated landing pages for QR campaigns
• Use dynamic QR code services (though these may compromise privacy)

We prioritize privacy over tracking, but these methods let you gather insights while respecting user privacy.