Top 5 auction open source projects

CSGO League App | Featured on Google DevLibrary

Php library for yahoo auction. Bid on lot, watch bidding lots and get won lots

Biet-O-Matic Browser Extension

Real Time Bidding (RTB) - Demand Side Platform ( DSP ) application based on vanilla-rtb stack

A smartcontract Dapp with a web based UI that keeps track of contract data by adding it into blocks to be mined on a test network.