Nunjucks vs Pug

Side-by-side — pricing, strengths, tradeoffs, and fit.

Nunjucks

Templating engine inspired by Jinja2 with inheritance and async support.

Pug

High-performance template engine inspired by Haml for Node.js.

At a glance

Open SourceFree Tier
● Established·From $0
Open SourceFree Tier
● Established·From $0

Overview

One-liner

Templating engine inspired by Jinja2 with inheritance and async support.

One-liner

High-performance template engine inspired by Haml for Node.js.

Maturity

Established

Maturity

Established

Open source

✓ Yes

Open source

✓ Yes

Pricing

Free tier

✓ Available

Open source — free to use

Free tier

✓ Available

Open source — free to use

Starts at

$0

Starts at

$0

Model

Flat rate

Model

Flat rate

Enterprise

✕ None

Enterprise

✕ None

Best for

✓ Best for

Web developers who need a flexible templating engine with async support
Projects requiring safe object handling to prevent XSS attacks
Teams building documentation sites that require template inheritance and dynamic content generation

✓ Best for

Developers building high-performance, server-rendered web applications using Node.js who need a concise and expressive templating language.
Teams that require robust template inheritance and mixins for complex HTML generation.

Not ideal for

✕ Not for

Projects needing real-time data binding or complex UI state management (use React/Vue instead)
Applications where performance is critical and templating overhead needs to be minimized

✕ Not for

Projects requiring real-time data binding or client-side rendering as Pug is primarily used for server-side rendering.
Developers looking for a full-featured front-end framework with built-in state management and routing capabilities.

Strengths

↑ Strengths

Template inheritance
Asynchronous control structures
Extensive filter and function support
Safe object handling to prevent XSS attacks

↑ Strengths

High-performance HTML generation
Concise and expressive syntax inspired by Haml
Support for mixins, includes, and extends
Built-in support for escaping to prevent XSS attacks

Weaknesses

↓ Weaknesses

Steep learning curve for non-Python developers
Limited official documentation and community support
Performance issues with complex templates
Complex setup for server-side rendering

↓ Weaknesses

Steep learning curve for developers unfamiliar with template languages
Limited language support outside of JavaScript/Node.js ecosystem
Small community and less active development compared to modern frameworks
Potential for verbose code when dealing with complex templates
Full Nunjucks profile →Full Pug profile →