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ExpressJS VS Haproxy

Compare ExpressJS VS Haproxy and see what are their differences

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ExpressJS logo ExpressJS

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

Haproxy logo Haproxy

Reliable, High Performance TCP/HTTP Load Balancer
  • ExpressJS Landing page
    Landing page //
    2021-10-14
  • Haproxy Landing page
    Landing page //
    2023-03-19

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.

Haproxy features and specs

  • High Performance
    HAProxy is known for its high efficiency and low latency, making it suitable for handling a large amount of traffic with minimal overhead.
  • Reliability
    The software is robust and stable, having been battle-tested in numerous large-scale environments, ensuring reliable performance under heavy loads.
  • Flexibility
    HAProxy supports a wide range of configurations, allowing it to be used in various scenarios, from simple load balancing to complex traffic routing.
  • Scalability
    With HAProxy, you can easily scale out your infrastructure by distributing the traffic across multiple servers, ensuring better resource utilization.
  • Health Checking
    HAProxy provides powerful health check mechanisms to monitor the status of backend servers and automatically remove unhealthy servers from the pool.
  • Open Source
    Being an open-source project, HAProxy is free to use and has a community of contributors that help improve and maintain the software continuously.
  • SSL Termination
    HAProxy supports SSL termination, which can offload the SSL decryption process from backend servers, improving overall performance.
  • Logging and Monitoring
    HAProxy offers comprehensive logging and monitoring features that allow administrators to gain insights into traffic patterns and server health.

Possible disadvantages of Haproxy

  • Complex Configuration
    Setting up HAProxy can be complex and may require a deep understanding of its configuration syntax and options, particularly for advanced use cases.
  • Lack of Built-in GUI
    HAProxy does not come with a built-in graphical user interface (GUI), which can make management more difficult for users who prefer visual tools over command-line interfaces.
  • Steep Learning Curve
    For beginners, the learning curve can be steep due to the advanced features and extensive configuration options provided by HAProxy.
  • Limited Application Layer Features
    While HAProxy excels at load balancing and basic traffic management, it lacks some application layer features that specialized application delivery controllers (ADCs) might offer.
  • Resource Intensive
    In certain high-traffic scenarios, HAProxy may consume significant CPU and memory resources, potentially requiring hardware upgrades.

ExpressJS videos

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Haproxy videos

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HAProxy Crash Course (TLS 1.3, HTTPS, HTTP/2 and more)

More videos:

  • Review - HAPROXY vs NGINX - 10,000 requests while killing servers
  • Tutorial - How To Setup ACME, Let's Encrypt, and HAProxy HTTPS offloading on pfsense

Category Popularity

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ExpressJS

Haproxy

JavaScript Framework
100 100%
JavaScript Framework
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Web Servers
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Web Servers
100% 100
Developer Tools
100 100%
Developer Tools
0% 0
Web And Application Servers
0 0%
Web And Application Servers
100% 100

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 Haproxy

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.
Source: tms-outsource.com
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

Haproxy Reviews

Top 5 Open Source Load Balancers in 2024
Widely regarded as a stalwart in the open source community, HAProxy has evolved into a versatile and powerful load balancing solution. HAProxy stands as a silent sentinel, orchestrating the seamless flow of data for some of the world's most visited websites. As a free, exceptionally fast, and reliable reverse-proxy, HAProxy is not just a load balancer; it's a digital maestro...
Source: www.techtimes.com
10 Awesome Open Source Load Balancers
HAProxy is an L4 and L7 load balancer supporting TCP and UDP traffic. It’s a well-established, open source solution used by companies such as Airbnb and GitHub. HAProxy is also a very capable L7 load balancer, supporting HTTP/2 and gRPC backends. Thanks to its long history, large community, and reliable nature, HAProxy has become the de facto open source load balancer—it...
Source: www.containiq.com
10 Open Source Load Balancer for HA and Improved Performance
One of the popular ones out there in the market is to provide high availability, proxy, TCP/HTTP load-balancing. HAProxy is used by some of the reputed brands in the world, like below.
Source: geekflare.com
Top 5 Open-Source Load Balancers 2021
HAProxy provides many distinct features such as it processes an enormous number of tasks in a millisecond, offers minimal cost for context switch and memory usage, ability to instantly detect a threat or event on tens of thousands of connections, efficient use of the CPU cycles, and memory bandwidth, optimized timer queue, optimized HTTP header analysis, GZip Compression,...
Source: linuxways.net
The 5 Best Open Source Load Balancers
HAProxy is another common name in the web ecosystem. HAProxy offers reverse proxying and load balancing of TCP and HTTP traffic. When you choose HAProxy, you’re choosing a high-performance, well-established solution.
Source: logz.io

Social recommendations and mentions

Based on our record, ExpressJS seems to be a lot more popular than Haproxy. While we know about 466 links to ExpressJS, we've tracked only 2 mentions of Haproxy. 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 (466)

  • 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 / 12 days ago
  • How To Fetch Image From Database and Display In React JS
    Express Documentation This site has comprehensive guides on setting up routes, handling requests, and working with middleware in Express. - Source: dev.to / about 1 month ago
  • Show HN: MetroJS – JavaScript HTTPS Client with Middleware
    Hi, I've made a javascript https client, based on the browsers Fetch API, with added middleware support. Prebuilt middleware includes JSON, OAuth2.1 and OIDC (OpenID Connect). Differences with for example Axios, is that middleware can capture both request and response in a single function. Middleware is stackable. It is also completely backwards compatible with the Fetch API. Direct inspiration came from Express... - Source: Hacker News / about 1 month ago
  • Which Go Web Backend Framework Is Right for Your Next Project? A Detailed Analysis of Features and Performance
    Fiber draws direct inspiration from Express.js, a widely used web framework in the Node.js ecosystem. It is built on top of Fasthttp, known for its exceptional speed and low memory usage. - Source: dev.to / about 2 months ago
  • How To Fetch (Get) HTML From Server 🛤️
    To do this, let's create an API route, through which we will receive HTML from the server. For the backend part, we will use Node.js. The framework on which we will do this is Express.js. It is one of the most popular today and it is perfect for the task we are solving. First, we specify the controller that will process the HTML:. - Source: dev.to / about 2 months ago
View more

Haproxy mentions (2)

  • HA Proxy For MySQL Master – Slave
    Root@haproxy01:~# haproxy -v HA-Proxy version 2.0.13-2ubuntu0.3 2021/08/27 - https://haproxy.org/ How to Install it? You simply use yum or apt commands to install it Sudo apt install -y haproxy. - Source: dev.to / almost 3 years ago
  • cannot get haproxy / mjpeg streamer to play nice together
    HA-Proxy version 2.2.9-2+deb11u3 2022/03/10 - https://haproxy.org/ maxconn 4096 user haproxy group haproxy daemon log 127.0.0.1 local0 debug Defaults log global mode http option httplog option dontlognull retries 3 option redispatch option http-server-close option forwardfor maxconn 2000 ... Source: almost 3 years ago

What are some alternatives?

When comparing ExpressJS and Haproxy, 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

nginx - A high performance free open source web server powering busiest sites on the Internet.

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

Traefik - Load Balancer / Reverse Proxy

Laravel - A PHP Framework For Web Artisans

SKUDONET - Scale easy and avoid system disruptions with the ADC challengers through high availability, load balancing, security and high performance.

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