How to Generate QR Codes for Your Business — Free Guide

QR codes went from being a niche technology to ubiquitous — on restaurant menus, business cards, product packaging, event tickets, and payment systems. Here is everything you need to know about creating effective QR codes for your business or personal use.

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QR Code Generator

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What Can You Encode in a QR Code?

Website URL — https://yourwebsite.com
Wi-Fi credentials — WIFI:S:NetworkName;T:WPA;P:Password;;
Email address — mailto:hello@example.com
Phone number — tel:+919876543210
SMS — sms:+919876543210?body=Hello
Location — geo:28.6139,77.2090
Plain text — any text up to ~4,296 characters
VCard / contact info — digital business card format

Choosing the Right Error Correction Level

QR codes have built-in error correction that allows them to be read even when partially damaged or obscured. There are four levels:

L (Low)    — 7%  of data can be restored
M (Medium) — 15% of data can be restored  ← default
Q (High)   — 25% of data can be restored
H (Highest)— 30% of data can be restored

💡

Use H level for QR codes that will be printed on textured surfaces, placed on curved objects, or will have your logo overlaid in the centre.

Best Practices for Printed QR Codes

Minimum size

Print QR codes at a minimum of 2cm × 2cm (about 0.8 inches square). Smaller than this and most phone cameras struggle to scan reliably.

Contrast

Dark modules on a light background. Avoid reversing to white-on-dark — some scanners cannot read inverted QR codes. Maintain a contrast ratio of at least 4:1.

Quiet zone

Always include a quiet zone (white border) around the QR code — at least 4 modules wide. The EazyTools generator includes this automatically with the "Add quiet zone" option.

Test before printing

Always scan the QR code on your phone before sending files to print. Test in bright light, low light, and at different angles.

Common Use Cases with Examples

Restaurant menu

Link to a PDF or webpage with your menu. Update the destination URL anytime without reprinting the QR code (use a URL shortener like bit.ly as the encoded URL).

Wi-Fi sharing

Encode your Wi-Fi credentials so guests can connect by scanning instead of typing a complex password. Format: WIFI:S:MyNetwork;T:WPA;P:MyP@ssword;;

Business card

Encode your LinkedIn profile URL or website so contacts can save your details instantly.

Payment links

Link to UPI payment pages, PayPal.me links, or other payment platforms for quick in-person payments.

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QR Code Generator

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