Gulp

In the last radar we called out Gulp as a strong competitor to Grunt, with a clean API and fast builds thanks to its streaming approach. While we still like it as a tool, we are moving it out from trial back to assess since Grunt has both a broader usage model and better industry adoption and tooling. We do see some teams successfully using Gulp inside Grunt, when the speed of intermediate result caching is required, but we are not recommending it as the default JavaScript build tool. 

Gulp is an alternative to Grunt. It is a command-line task automation tool that helps developers with SaaS compilation, autoprefixing, minification, concatenation and so on. Gulp's central idea is the use of streams, and its plugins are designed to do only one task.