Uniqode - Uniqode: Revolutionizing QR Codes, Simplifying Solutions.
Eventbrite - Discover Great Events or Create Your Own & Sell Tickets
QR Code Generator For Developers - A quick API to generate QR codes in your apps
Attendize Event Ticketing - Attendize is a free & open-source ticket selling and event management platform
The QR Code Generator - Free Online QR Code Generator to make your own QR Codes. Supports Dynamic Codes, Tracking, Analytics, Free text, vCards and more.
pretix - pretix helps you to sell tickets for your event in an easy way. It supports multi-lingual events and provides a wide range of features