OpenXava - OpenXava is a Web Java Framework for Rapid Development of Enterprise Applications.
Apache Tiles - Apache Tiles is an open-sourced templating framework for modern Java applications.
Telosys - Telosys is a lightweight Open Source code generator. Telosys allows to generate any kind of language (Java, Python, GoLang, PHP, JavaScript, TypeScript, C#, etc). It works without UML model. All the code generation templates are customizable.
Spark Mail - Spark helps you take your inbox under control. Instantly see what’s important and quickly clean up the rest. Spark for Teams allows you to create, discuss, and share email with your colleagues
Google Kubernetes Engine - Google Kubernetes Engine is a powerful cluster manager and orchestration system for running your Docker containers. Set up a cluster in minutes.
mustache - Mustache is a simple web template system with implementations available for ActionScript, C++...