stream-json
stream-json is the micro-library of Node.js stream components for creating custom JSON processing pipelines with a minimal memory footprint. It can parse JSON files far exceeding available memory streaming individual primitives using a SAX-inspired API. I
jinja-js
JavaScript templating engine based on Jinja2
free-swig
A simple, powerful, and extendable templating engine for node.js, similar to Django, Jinja2, and Twig.