QR & Barcode
QR code analysis, barcode validation, and encoding reference tools.
QR Data Analyzer
QR Capacity Reference
Wi-Fi QR Config Builder
vCard QR Builder
Error Correction Calculator
Barcode Format Reference
Barcode Validator
QR Data Formatter
Event QR Generator
Generate calendar event data for QR codes in iCalendar format
Email QR Generator
Generate email QR data with mailto: URI and MATMSG format
SMS QR Generator
Generate SMS QR data with pre-filled messages
Geo Location QR Generator
Generate geographic coordinates for QR codes
Phone Call QR Generator
Generate tel: URI QR data for phone calls
MeCard Generator
App Store Link Generator
Learn QR & Barcode
Key concepts and practical guides to level up your workflow.
📖 อภิธานศัพท์
A 2D barcode with a bullseye finder pattern in the center, used on airline boarding …
A self-checking 1D barcode encoding digits and a few special characters, historically used in libraries …
A variable-length 1D barcode encoding uppercase letters, digits, and a few symbols, used in government …
A 2D barcode designed for high-speed industrial printing, using a rectangular dot grid pattern readable …
A 2D barcode designed for encoding Chinese characters efficiently, supporting multiple character sets and up …
A barcode format used on shipping cartons, encoding 14 digits in a compact interleaved pattern.
A number from 1 to 40 indicating the size of a QR code — version …
Smaller square patterns in larger QR codes that help correct distortion when scanning at an …
📘 คู่มือ
QR codes bridge physical and digital experiences, but poorly generated codes fail to scan. This guide covers sizing, error correction, design customization, and testing best …
QR codes and traditional barcodes serve different purposes. This comparison covers data capacity, scanning requirements, and optimal use cases to help you choose the right …
Wi-Fi QR codes let guests connect to your network instantly by scanning with their phone camera. This guide covers the Wi-Fi QR format, security considerations, …
Branded QR codes with logos increase scan rates and reinforce brand identity. Learn how to customize QR codes with logos, colors, and shapes while maintaining …
Explore All Peasy Tools
15 specialized sites — one easy-peasy family.