mustache - Mustache is a simple web template system with implementations available for ActionScript, C++...
Apache Tiles - Apache Tiles is an open-sourced templating framework for modern Java applications.
StringTemplate - StringTemplate is a java template engine for generating source code, web pages, emails, or any other formatted text output.
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
Handlebars - Handlebars is a JavaScript template library that is, more or less, based on ...
Jinja2 - Jinja2 is a template engine written in Python.