
Description: StencilJS is an open-source toolkit for building reusable, standalone Web Components using TypeScript. It focuses on creating smaller, faster components that work natively in modern browsers without needing large frameworks or runtimes. Stencil components work with popular frameworks like React, Angular, and Vue.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Svelte is a progressive JavaScript framework for building user interfaces. It compiles components into highly performant vanilla JavaScript instead of using a virtual DOM. This makes it extremely fast and efficient.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API