testify : Go code (golang) set of packages that provide many tools for testifying that your code will behave as you intend.
Flagr : Flagr is an open source Go service that delivers the right experience to the right entity and monitors the impact. It provides feature flags, experime...
Cobra : Cobra is a library providing a simple interface to create powerful modern CLI interfaces similar to git & go tools.
Cobra is also an application that ...
Go kit : Go is a great general-purpose language, but microservices require a certain amount of specialized support. RPC safety, system observability, infrastru...
Parsley.js : Javascript forms validation.
Powerful, UX aware & Dead simple.
Viper is a complete configuration solution for Go applications including 12-Factor apps. It is designed to work within an application, and can handle all types of configuration needs and formats.