Nunjucks

What it is

Nunjucks is a powerful templating engine for JavaScript that supports asynchronous control structures, template inheritance, and more. It's widely used in web development to generate HTML dynamically from templates.

Nunjucks stands out with its robust support for asynchronous operations within templates, making it ideal for modern web applications that require dynamic content generation.

When it fits — and when it doesn’t

Known weaknesses

Each one links to the public issue, changelog or docs page it came from, where we have one.

1. 01

   Steep learning curve for non-Python developers

   Nunjucks syntax and patterns are heavily influenced by Jinja2, a Python templating engine, which can be confusing for developers unfamiliar with this style.

2. 02

   Limited official documentation and community support

   While the core functionality is well-documented, advanced features and edge cases often lack detailed guidance or examples, leading to a reliance on community forums which can be sparse.

3. 03

   Performance issues with complex templates

   Nunjucks can suffer from performance degradation when rendering large or deeply nested templates due to its synchronous nature and lack of optimization for such scenarios.

4. 04

   Complex setup for server-side rendering

   Integrating Nunjucks into a Node.js application for server-side rendering requires additional configuration, including setting up loaders and environments, which can be cumbersome.

What it does well

• Template inheritance

• Asynchronous control structures

• Extensive filter and function support

• Safe object handling to prevent XSS attacks

Pricing

Free tier

YesOpen source — free to use

Paid from

$0

Model

Flat rate

Enterprise plan

No

Pricing not independently confirmed — check the vendor’s page.