Jinja is a modern and designer-friendly templating language for Python, modelled after Django’s templates. It is fast, widely used and secure with the optional sandboxed template execution environment:

<title>{% block title %}{% endblock %}</title>
{% for user in users %}
  <li><a href="{{ user.url }}">{{ user.username }}</a></li>
{% endfor %}


  • sandboxed execution

  • powerful automatic HTML escaping system for XSS prevention

  • template inheritance

  • compiles down to the optimal python code just in time

  • optional ahead-of-time template compilation

  • easy to debug. Line numbers of exceptions directly point to the correct line in the template.

  • configurable syntax