Open-source alternatives to SmartFormat

art-template is a JavaScript template engine and server-side rendering engine. It functions as an abstract syntax tree compiler that translates template source code into executable JavaScript to generate HTML or text output. The engine includes a template inheritance system that allows the definition of base layouts and reusable content blocks. It also provides a template debugging tool that maps syntax and runtime errors to exact line numbers within the source files.

A lightweight and fast parsing library for C#.

1KB lightweight, fast & powerful JavaScript templating engine with zero dependencies. Compatible with server-side environments like node.js, module loaders like RequireJS and all web browsers.

Simple and intuitive, powerful and extensible, lightning fast

Secure and speedy templates for Java and Kotlin.

Jet template engine

Portable .NET library for reading/writing xaml files.

A C# parser construction toolkit with high-quality error reporting

.NET Port of Tobias Lütke's Liquid template language.

Amber is an elegant templating engine for Go Programming Language, inspired from HAML and Jade

Java 8 optimized, memory efficient, speedy template engine producing statically typed, plain java objects

Django-syntax like template-engine for Go

The DVD Chief template engine used in generation of movie and person template and html export. The template engine has most features of Smarty PHP template engine.