
Description: Zipkin is an open source distributed tracing system. It is used to gather timing data needed to troubleshoot latency problems in microservice architectures. Zipkin helps gather timing data related to inter-service calls and provides tools to visualize this data.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Glimpse is an open source image editing software alternative to Adobe Photoshop. It provides basic and advanced image editing tools to manipulate photos, create graphics and design artwork. It runs on Linux, Windows and macOS.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API