The EJS Ecosystem

EJS is popular because it stays out of your way. But it doesn't exist in isolation. There's a whole ecosystem of tools, libraries, and alternatives worth knowing about. Let's explore where to go next with your EJS knowledge.

EJS Companion Packages

The ejs package itself is small, but several community packages extend it.

npm install ejs-mate
npm install express-ejs-layouts
npm install ejs-locals
    

ejs-mate adds support for block-level helpers and layouts. express-ejs-layouts gives you a layout system where templates fill defined blocks. ejs-locals adds helper functions available in all templates.

Each of these solves a common pain point — layout management — in a slightly different way. Try a few to see which fits your workflow.

Alternative Template Engines

EJS isn't the only option. Comparing it with alternatives helps you understand its strengths and trade-offs.

// Pug (formerly Jade) - Indentation-based, no HTML tags
doctype html
html
  head
    title My Page
  body
    h1= title

// Handlebars - Logic-less templates with helpers
{{title}}
{{#each items}}
  
{{this}}
{{/each}}

// Nunjucks - Jinja2-inspired, powerful filters
{% for item in items %}
  
{{ item.name | upper }}
{% endfor %}
    

Pug uses indentation instead of HTML tags. It's compact but has a steeper learning curve. Handlebars keeps templates logic-free, pushing logic into helpers. Nunjucks (from Mozilla) is similar to Jinja2 and offers powerful template inheritance.

When to Choose EJS Over Alternatives

EJS shines when you want plain HTML with embedded logic. If your team knows HTML, they can pick up EJS in minutes.

  
<%= user.name %>
  
<%= user.email %>
  <% if (user.isAdmin) { %>
    Admin
  <% } %>

    

Choose EJS when: your team is HTML-familiar, you want minimal syntax overhead, you need a quick prototype, or your templates are mostly HTML with light logic.

Consider alternatives when: you need strict logic-less templates (Handlebars), you want powerful inheritance (Nunjucks), or you prefer a DSL over HTML (Pug).

Serverless EJS

EJS works great in serverless environments. Render templates on-demand without a persistent server.

const ejs = require('ejs')

exports.handler = async (event) => {
  const data = JSON.parse(event.body)
  const html = await ejs.renderFile('./views/email.ejs', {
    name: data.name,
    actionUrl: data.url
  })
  return {
    statusCode: 200,
    headers: { 'Content-Type': 'text/html' },
    body: html
  }
}
    

Serverless functions cold-start, so keep your node_modules lean. Pre-compile templates at build time if latency matters.

Resources to Explore

Here are the key places to deepen your EJS knowledge.

// Official EJS documentation
https://ejs.co

// EJS GitHub repository
https://github.com/mde/ejs

// Express.js EJS guide
https://expressjs.com/en/guide/using-template-engines.html

// EJS loader for webpack
npm install ejs-loader

// VS Code extension for EJS syntax highlighting
// Search "EJS Language Support" in VS Code extensions
    

The official docs at ejs.co cover every feature. The Express.js guide shows how to wire EJS into your app. Community tutorials on Dev.to and YouTube cover real-world patterns.

Building Your Own Layout System

Once you're comfortable with EJS, you might want a layout system. You can build one with partials and includes.

// views/layout.ejs




  <%- include('partials/header') %>
  
<%- body %>
  <%- include('partials/footer') %>



// views/page.ejs
<% const layout = 'layout' %>
<% const body = `
${pageTitle}
${content}
` %>
    

This pattern uses include() to compose pages. For more sophisticated layouts, look into express-ejs-layouts or build your own wrapper function that stitches templates together.