⚡ UI/UX Pro Max · Custom Shapes & Logo Engine · 100% Free
Custom QR Code
Studio with Shapes & Logo
Design professional, branded QR codes with rounded dots, squircle modules, custom eye frames, vibrant linear gradients, and center logos. Download high-resolution PNG or vector SVG ready for print and digital media.
1. Content Payload
2. Live Preview
📱 Live Preview · Scan with smartphone camera
3. Download & Export Formats
Your custom QR code is generated live in memory. Choose high-res raster or vector SVG for crisp printing at any scale.
Tip: Vector SVG maintains razor-sharp edges for billboards, merchandise, and retail packaging.
Advanced QR Code Engineering: Balancing Aesthetics with Optical Scannability
Creating customized QR codes that combine distinct visual branding with high optical scannability requires understanding the underlying ISO/IEC 18004 specifications. While standard QR codes use rigid black squares on a plain white canvas, modern smartphone vision engines and neural object detectors can reliably decode customized dot shapes, smoothed eye markers, and center branding badges when strict geometric constraints are maintained.
🛡️ Reed-Solomon Error Correction
QR codes embed redundant data parity blocks using Galois field arithmetic. The error correction levels (L: 7%, M: 15%, Q: 25%, H: 30%) determine how much of the code area can be obscured, torn, or covered by a logo badge before decoding fails. When embedding a center logo, Level H must be utilized to maintain a safe 30% recovery margin.
👁️ The Critical Role of Finder Patterns
The three 7×7 module corner markers (Finder Patterns) determine position, orientation, and perspective transformation. Scanner sensors calculate the 1:1:3:1:1 module frequency ratio to identify the code. Preserving high contrast between the outer frame, inner pupil, and separator is essential for sub-second recognition.
📐 Module Geometry & Dot Shapes
Switching from classic squares to rounded squircle dots or circular modules softens the visual weight of the code. However, modules must never shrink below 80% of their theoretical grid cell width to prevent signal dispersion under low-light or blurred focal conditions.
💡 Print Production Recommendation: Vector SVG vs. High-DPI PNG
For physical signage, packaging cartons, and trade show banners, always export using the Vector SVG option. Vector paths scale infinitely without pixelation or aliasing artifacts. If utilizing raster PNGs for print, ensure your resolution slider is configured to at least 1024px or higher, providing a minimum of 300 DPI at your target print dimension.
Step-by-Step Verification Checklist Before Commercial Printing
- Check Quiet Zone Margin: Maintain a minimum of 4 module widths of clean space surrounding all four borders. Placing codes directly on busy graphic edges causes camera edge-detection algorithms to miscalculate matrix bounds.
- Test Dynamic Lighting: Test printed proofs under bright daylight, fluorescent office lighting, and dim ambient environments. Ensure high luminance contrast between foreground modules and the background.
- Multiple Camera Testing: Verify scanning across at least three distinct Android and iOS camera lenses, testing both native camera apps and dedicated optical scanner applications.
- Avoid Inverted Contrast: Standard QR decoders prioritize dark modules on a light background. While some decoders support inverse mode (light on dark), many legacy scanners fail completely. Always preserve a darker foreground than background.
Branded QR Codes Across Global Industries
Discover how leading enterprises, retailers, and event organizers implement custom QR systems
Hospitality & Menus
Dynamic contactless digital menus. Update dishes, seasonal pricing, and allergen disclosures in real time without discarding printed tabletop cards.
Retail & Smart Packaging
Direct consumers to authenticity verification, user manuals, warranty registrations, and loyalty discount points directly from the product box.
Conferences & Ticketing
Paperless access control, speaker presentations, real-time schedule downloads, and lead-retrieval badge scanning for exhibitors.
Healthcare & Pharma
Direct link to multilingual dosage guidelines, prescription verification, and medical device operating procedures.
vCard Business Cards
Instantly save phone numbers, emails, and portfolio links directly into phone address books with a single camera tap.
Supply Chain & Logistics
Integrate 2D QR matrix codes alongside 1D linear barcodes on shipping cartons to store full manifests and serial tracking data.
Generate & Scan Unlimited Codes on Android
The complete optical utility suite for mobile — scan barcodes, digitize documents into multi-page PDFs, and manage your scan history offline.