
Description: LibreSprite is a free and open source 2D sprite animation editor and pixel graphics creation tool. It supports frames, layers, and other common sprite animation features. With an intuitive timeline UI and animation features, LibreSprite is good for making 2D animation clips, simple animated images, and game sprites.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Tilesetter is an open-source, free software for Linux used to create tilesets and tilemaps for 2D video games. It has a simple interface for drawing and editing tiles with features like layers, copy/paste, reshape, color picker, grids, and more.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API