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ExpressJS VS Sails.js

Compare ExpressJS VS Sails.js and see what are their differences

ExpressJS logo ExpressJS

Sinatra inspired web development framework for node.js -- insanely fast, flexible, and simple

Sails.js logo Sails.js

Realtime MVC Framework for Node.js
  • ExpressJS Landing page
    Landing page //
    2021-10-14
  • Sails.js Landing page
    Landing page //
    2022-04-14

ExpressJS features and specs

  • Fast Setup
    ExpressJS provides a minimal and flexible framework that allows rapid setup and development of web and mobile applications.
  • Middleware Support
    ExpressJS has a robust middleware system, allowing developers to add reusable functions to the request-handling pipeline.
  • Extensibility
    ExpressJS is highly extensible through third-party libraries and built-in functionality, catering to the needs of various applications.
  • Performance
    Due to its minimalist core, ExpressJS provides efficient performance and is capable of handling a high number of requests per second.
  • Community and Ecosystem
    A large and active community provides extensive documentation, support, and a wide array of open-source packages to extend functionality.
  • Flexibility
    Compared to full-stack frameworks, ExpressJS gives developers the freedom to structure their applications as they see fit.
  • Compatibility
    ExpressJS works seamlessly with various template engines, databases, and other frameworks, making it versatile for different project requirements.

Possible disadvantages of ExpressJS

  • Minimalist Core
    The minimalist nature of ExpressJS may require additional time and effort to integrate required plugins and libraries for specific features.
  • Learning Curve
    While ExpressJS is straightforward, mastering the middleware pattern and effective usage can have a learning curve for new developers.
  • Callback Hell
    Developers can encounter 'callback hell' due to nested callback functions, though this can be mitigated using Promises and async/await in modern JavaScript.
  • Lack of Convention
    Unlike opinionated frameworks, ExpressJS lacks conventions, which can lead to inconsistent code structure and maintenance challenges across different projects.
  • Security
    ExpressJS does not have built-in security features and relies on third-party solutions, requiring developers to be vigilant about applying best security practices.
  • Scalability
    While ExpressJS can handle high traffic, building and maintaining a highly scalable application might require significant additional effort, particularly in terms of codebase organization and resource management.

Sails.js features and specs

  • MVC Architecture
    Sails.js follows a Model-View-Controller (MVC) pattern, making it easier to organize and maintain code, particularly for larger applications.
  • Auto-Generated REST APIs
    Automatically generates RESTful APIs based on your models, saving development time and reducing boilerplate code.
  • WebSocket Support
    Built-in support for WebSockets allows for real-time features without needing additional configurations.
  • ORM Integration
    Waterline, Sails.js' built-in ORM, provides a straightforward way to interact with databases, supporting multiple database systems with the same codebase.
  • Modularity
    Encourages modular development by supporting hooks and middleware, which can be reused or extended for various functionalities.
  • Blueprints
    Blueprints provide automatic actions for basic CRUD operations, streamlining common tasks and making development faster.
  • Scalability
    Designed to be scalable, allowing you to build applications that can handle a large number of simultaneous connections.

Possible disadvantages of Sails.js

  • Learning Curve
    Although Sails.js simplifies many aspects of development, there is still a learning curve, especially for those not familiar with Node.js.
  • Performance Overhead
    The abstractions provided by Sails.js and its ORM can introduce performance overhead, potentially making it slower than more lightweight frameworks.
  • Limited Flexibility
    While the conventions in Sails.js can speed up development, they can also limit flexibility, making it harder to implement customized or unconventional features.
  • Community and Support
    The community and support for Sails.js are not as extensive as some other frameworks like Express.js, which might make troubleshooting and finding solutions more challenging.
  • Outdated Documentation
    Some parts of the documentation may be outdated, which can lead to confusion and require additional time to find updated resources or examples.

Analysis of ExpressJS

Overall verdict

  • ExpressJS is a highly recommended option for building web applications with Node.js. Its simplicity, extensive middleware options, and strong community support make it a solid choice for both beginners and experienced developers. However, it might not be the best fit for highly complex applications that require more opinionated frameworks with more built-in features.

Why this product is good

  • ExpressJS is a minimalist and flexible web application framework for Node.js. It provides a robust set of features for building web and mobile applications, making it a popular choice among developers.
  • It offers a thin layer of fundamental web application features, without obscuring Node.js features that developers use regularly.
  • ExpressJS has a large ecosystem of middleware to handle various tasks such as security, session management, and file uploads, which simplifies the development process.
  • It's known for its fast learning curve, which makes it particularly advantageous for developers who are new to backend web development but familiar with JavaScript.

Recommended for

  • Developers looking for a lightweight and flexible web framework for Node.js.
  • Projects where quick setup and ease of development are priorities.
  • Applications that require a custom architecture and a high degree of flexibility.
  • Teams who prefer to build their technology stack from the ground up and have control over the specific components used.

Analysis of Sails.js

Overall verdict

  • Sails.js is a solid choice for developers who are already familiar with Node.js and require a well-structured framework to build scalable and maintainable applications quickly. Its convention over configuration approach can significantly increase development efficiency, though it may introduce a learning curve for developers unfamiliar with its conventions. Overall, it's a robust tool for building apps that need real-time features or are backed by databases.

Why this product is good

  • Sails.js is good for building data-driven APIs and real-time apps due to its adherence to the Model-View-Controller (MVC) pattern, compatibility with Node.js, and its powerful built-in features like websockets, which facilitate real-time communication. It provides a comprehensive framework with out-of-the-box support for ORM (via Waterline), making database interaction straightforward. This can significantly reduce the amount of boilerplate code needed to set up HTTP APIs and enhance development speed.

Recommended for

    Sails.js is recommended for developers and teams looking to build enterprise-level applications, startups that need to rapidly prototype and iterate on real-time applications, and any development projects that require a powerful, flexible API system. It is especially suitable for small to medium-sized projects that wish to leverage Node.js, and those who appreciate a comprehensive framework that can provide rapid development and robust feature sets.

ExpressJS videos

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Sails.js videos

Intro to Sails.js Framework for Next-Level Nodejs Backend Apps

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  • Review - Sails.js LOGIC 101: Dynamic data

Category Popularity

0-100% (relative to ExpressJS and Sails.js)
JavaScript Framework
90 90%
10% 10
Web Frameworks
83 83%
17% 17
Developer Tools
86 86%
14% 14
Javascript UI Libraries
87 87%
13% 13

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare ExpressJS and Sails.js

ExpressJS Reviews

Top JavaScript Frameworks in 2025
Express.JS is used to create Restful APIs, which is useful for accepting requests from the front end and sending the appropriate response. Express.JS supports Node.js, which is one of the best reasons developers choose to use it. Moreover, debugging becomes faster and helps in finding errors in less time.
Source: solguruz.com
The 20 Best Laravel Alternatives for Web Development
Express.js — or Express for the cool cats — is Node.js’s minimalist wingman. It’s the train tracks for your web app, setting the path, defining the stops, but letting you drive the engine.
Top 9 best Frameworks for web development
The best frameworks for web development include React, Angular, Vue.js, Django, Spring, Laravel, Ruby on Rails, Flask and Express.js. Each of these frameworks has its own advantages and distinctive features, so it is important to choose the framework that best suits the needs of your project.
Source: www.kiwop.com
9 Best JavaScript Frameworks to Use in 2023
Additionally, Express.js v4 now comes with built-in middleware for handling AJAX requests from the client side, making it even easier to get started without having to worry about 3rd party libraries. Express.js is a great tool for quickly building out web applications and APIs in Node.js.
Source: ninetailed.io
JavaScript: What Are The Most Used Frameworks For This Language?
Express.JS is a popular open-source web application framework for Node.JS, which is a server-side JavaScript runtime environment. Express.JS provides a simple, flexible and scalable way to build web applications and APIs using Node.JS. It is known for its minimalist and unimposing approach, which means it provides a basic set of features and tools but allows developers to...
Source: www.bocasay.com

Sails.js Reviews

Top 14 Node.JS Frameworks: Which Will Rule in 2020?
This is another real-time MVC web development Node.js framework created on Express. It builds the latest, data-driven style of APIs and web apps. Sails.js can develop an API bookstore.

Social recommendations and mentions

Based on our record, ExpressJS seems to be a lot more popular than Sails.js. While we know about 470 links to ExpressJS, we've tracked only 26 mentions of Sails.js. 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.

ExpressJS mentions (470)

  • 🔥 Why Everyone Is Talking About HTMX: The Game-Changer for Web Development
    🌍 Who Should Use HTMX? ✅ Django / Flask / Rails developers ✅ Express / Node.js backend lovers ✅ Fullstack devs who want LESS frontend headache ✅ Teams jo SSR + SEO ko priority dete hain. - Source: dev.to / 21 days ago
  • Not a Middy Fan
    Express.js was created around the time callbacks were _the_ architecture in Node.js. The world, including UI, quickly found callbacks do not compose well, and void return values are hard to test because of side-effects. Promises were created so you could compose functions, but still have control where your side-effects go. This negates the need for middlewares / callbacks. - Source: dev.to / about 1 month ago
  • Experimental Devvit Web Views
    The Devvit team just announced a new experimental way to build WebView based apps for Reddit. Previously only static HTML/JS/CSS could be used. With this new version, it is possible to run server-side code through Node including spinning up an Express server. - Source: dev.to / about 1 month ago
  • How to Handle File Uploads with Node.js and Express - Multer Edition
    Basic knowledge of JavaScript and Express. - Source: dev.to / about 1 month ago
  • Reusable API proxy in just a few lines of JavaScript
    The basis of my small API proxy is the NPM package http-proxy-middleware from Steven Chim, which I utilized to build a system that can be used via configuration for various endpoints and that runs on a server under the Node.js framework Express. - Source: dev.to / about 2 months ago
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Sails.js mentions (26)

  • AdonisJS
    I haven't used either so I can't chime in on that front, but long ago I was pretty into Sails which is written by a team that loves rails, but switched to NodeJS so it's basically Node on Rails. I actually thought they discontinued it, but I just searched and it still exists. It was a solid framework like 5 years ago when I used it last so I assume it's quite mature now. https://sailsjs.com/. - Source: Hacker News / 12 months ago
  • Choosing the best JavaScript framework for your next project
    Sails is a realtime JavaScript framework built on top of Express. Sails offers built-in realtime communication support and a flexible routing system. - Source: dev.to / over 1 year ago
  • Best NodeJS frameworks for seamless backend development
    Sails is a realtime MVC framework for NodeJS built on top of Express. Sails has a flexible routing system and comes with built-in realtime communication support. - Source: dev.to / over 1 year ago
  • The Ascent of Node.js: How a runtime changed the Web
    Sails.js: Sails.js pitched itself as the MVC framework for Node.js, bringing a Rails-like experience while being database agnostic. - Source: dev.to / almost 2 years ago
  • WebSockets 101
    Disclaimer: I didn't know much about Websockets 1 week ago, all the experience I had with Websockets was when I developed a chat application back in 2016 using a JS framework that tried to be a Ruby on Rails implementation called SailsJS, so I decided to research about this technology and consumed multiple resources which I will link in this blog post and each section. - Source: dev.to / almost 2 years ago
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What are some alternatives?

When comparing ExpressJS and Sails.js, you can also consider the following products

Node.js - Node.js is a platform built on Chrome's JavaScript runtime for easily building fast, scalable network applications

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Ruby on Rails - Ruby on Rails is an open source full-stack web application framework for the Ruby programming...

Nest.js - A progressive Node.js framework for building efficient, reliable and scalable server-side applications.

Django - The Web framework for perfectionists with deadlines

CodeBehind Framework - CodeBehind is a new framework based on .NET Core version 7.0. The CodeBehind framework inherits all the features of .NET Core and gives it more simplicity and flexibility. CodeBehind framework is owned by Elanat.