
Description: Review Board is an open source web-based code review tool that allows developers to review, discuss, and approve code changes before they are merged into the main codebase. It supports code syntax highlighting, inline comments, file diffs, custom workflows, and integrations with version control systems.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Crucible is a peer code review tool for developers to improve code quality by reviewing changes in a collaborative manner before they are committed. It integrates with popular version control systems like Git, SVN, Perforce and integrates with popular IDEs and issue trackers.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API