Apache Velocity VS EJS

Compare Apache Velocity VS EJS and see what are their differences

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Apache Velocity

Velocity is a Java-based template engine.

EJS

An open source JavaScript Template library.

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2019-04-21

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2022-01-11

Apache Velocity

Website: velocity.apache.org
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EJS

Website: ejs.co
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Apache Velocity features and specs

Simplicity
Apache Velocity is known for its simple syntax, making it easy for developers to create templates and generate dynamic web content without a steep learning curve.
Separation of Concerns
Velocity promotes a clear separation between the presentation layer and business logic, allowing developers to maintain cleaner and more organized code.
Java Integration
Velocity is written in Java and integrates well with Java applications, making it a suitable choice for projects that are already using the Java ecosystem.
Customizable
Developers can extend and customize Apache Velocity to match specific needs, offering flexibility in template design and rendering.
Lightweight
Velocity is a lightweight framework, with minimal overhead, which can lead to better performance and faster template rendering times.

Possible disadvantages of Apache Velocity

Limited Features
Compared to more modern templating engines, Apache Velocity lacks some advanced features and functionality, which may limit its use in more complex scenarios.
Legacy Status
Velocity has not seen as much active development in recent years, meaning it may not benefit from newer web technologies, improvements, or active community support.
Verbose Syntax
For some developers, the Velocity template syntax can be seen as verbose and cumbersome compared to other templating systems, potentially making code harder to maintain.
Performance Overhead
While lightweight, in specific scenarios, the way Velocity processes templates might introduce a minor performance overhead, especially in very large and complex templates.
Security Concerns
As with many templating systems, improper use of Velocity could expose an application to security risks, such as template injection, if not handled correctly.

EJS features and specs

Simplicity
EJS is easy to learn and use, especially for developers who are already familiar with JavaScript. The syntax is straightforward, making it a good choice for quick application development.
JavaScript Integration
Since EJS templates are JavaScript files, you can seamlessly integrate JavaScript code, making it easy to manipulate data and use familiar JavaScript functions.
Lightweight
EJS is a lightweight template engine, which makes it an optimal choice for applications where performance and simplicity are critical.
Flexibility
Allows for the embedding of plain JavaScript within the templates, giving developers the flexibility to add logic directly in their HTML.
Partial Templates
Supports partials, which help to reuse code snippets across different views, promoting DRY (Don't Repeat Yourself) principles.
Server-Side Rendering
Supports server-side rendering, which can improve performance by reducing the amount of client-side processing needed.

Possible disadvantages of EJS

Limited Functionality
Compared to more feature-rich template engines like Handlebars or Pug, EJS offers limited functionalities which might be a drawback for large, complex projects.
Debugging
Debugging EJS templates can sometimes be challenging. Errors within templates can often be vague, making it difficult to trace the root cause.
Maintenance
Embedding a lot of JavaScript within templates can make the code harder to read and maintain, especially as the complexity of the application grows.
Performance Overhead
For very large and complex templates, EJS can introduce a performance overhead compared to more optimized template engines designed for high performance.
Community and Support
While EJS has a reasonable user base, the community and support may not be as extensive as more popular alternatives like React or Vue.js.

Apache Velocity videos

+ Add

Apache Velocity Template Tutorial | Build Web Application

EJS videos

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Kane Creek - Bestop Trail Review at EJS 2019

Category Popularity

0-100% (relative to Apache Velocity and EJS)

Apache Velocity

EJS

Javascript UI Libraries

18 18%

Javascript UI Libraries

82% 82

Development

21 21%

Development

79% 79

Tool

100 100%

Tool

0% 0

Front-End Frameworks

0 0%

Front-End Frameworks

100% 100

User comments

Share your experience with using Apache Velocity and EJS. For example, how are they different and which one is better?

Social recommendations and mentions

Based on our record, EJS seems to be a lot more popular than Apache Velocity. While we know about 26 links to EJS, we've tracked only 1 mention of Apache Velocity. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Apache Velocity mentions (1)

Where can I learn to automate ?
Create a template that can generate source code (like one of these systems: https://freemarker.sourceforge.io/ http://velocity.apache.org/ https://www.stringtemplate.org/ http://www.telosys.org/). Source: about 4 years ago

EJS mentions (26)

Next.js vs Express: What to Choose in 2025?
Express does not provide SEO benefits by default and would require additional configuration with tools like EJS (Embedded JavaScript) or Handlebars for server-side rendering. - Source: dev.to / 2 months ago
Chapter 7: HTML part two
For a more robust approach, we'd probably need to install a templating language of some kind, such as Twig, EJS, Handlebars, Pug or Mustache (this is not a complete list!). Reading the documentation for posthtml-modules, you'll notice it doesn't mention package.json or any of the approaches we've used in this guide. Instead, the examples are in JavaScript and we've advised to add this to our Node application. - Source: dev.to / about 2 months ago
Web Components and SSR - 2024 Edition
Server-side Framework SSR is when you use a framework that runs the HTML templating logic entirely on the server to compose the HTML that will be rendered in the browser. These are frameworks like Ruby on Rails, ASP.Net, PHP, or even Node.js frameworks that use templating languages like Pug or EJS. - Source: dev.to / 6 months ago
How to Build an Application With Node.js
We need a templating engine to render HTML code in the browser using Node.js. We'll use ejs (Embedded JavaScript) for this tutorial but there are others such as Pug (formerly known as Jade) and Express Handlebar, which also render HTML on the server. - Source: dev.to / 9 months ago
Getting to the meat and potatoes of serverless recipe parsing with Amazon Bedrock
The tags is where you put the HTML you want Claude to read. The <%- document %> contained within is an ejs placeholder. More on this shortly. - Source: dev.to / 10 months ago