
Description: DMOJ is an open source automated judging system for competitive programming contests. It allows contest organizers to easily host programming competitions without needing to set up manual judging infrastructure.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Codechef is a competitive programming community and website where programmers can practice coding problems and submit solutions to compete in programming contests. It features over 50,000 coders from across the world.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API