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ExpressJS VS Leaflet

Compare ExpressJS VS Leaflet 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

Leaflet logo Leaflet

Leaflet is a modern, lightweight open-source JavaScript library for mobile-friendly interactive maps.
  • ExpressJS Landing page
    Landing page //
    2021-10-14
  • Leaflet Landing page
    Landing page //
    2023-06-13

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.

Leaflet features and specs

  • Lightweight
    Leaflet is designed to be easy on resources, making it fast to load and suitable for performance-critical applications.
  • Ease of Use
    The API is straightforward and well-documented, which makes it accessible for developers of all experience levels.
  • Open Source
    Being open-source means it is free to use and has a collaborative community contributing to its improvement.
  • Extensible
    Leaflet supports a wide range of plugins for additional functionality, allowing for customization and extension based on specific requirements.
  • Support for Mobile
    Leaflet is optimized for mobile browsers and touch devices, including multi-touch support.
  • Customizable
    It allows for extensive customization with a variety of map projections, tile layers, and interactive overlays.

Possible disadvantages of Leaflet

  • Limited Built-in Features
    Compared to some other mapping libraries, Leaflet has fewer built-in features out of the box.
  • Performance with Large Data Sets
    Rendering large data sets (such as many markers or complex geometries) can impact performance.
  • Steeper Learning Curve for Advanced Customization
    While basic use is straightforward, more advanced customizations can be challenging and may require deeper knowledge of JavaScript and Leaflet's architecture.
  • Limited 3D Support
    Leaflet is primarily designed for 2D maps, and doesn't natively support 3D visualizations, which may be a limitation for some applications.
  • Dependence on Third-party Services
    For certain functionalities like tile layers, geocoding, and routing, you may need to rely on third-party services, which can involve additional costs and dependencies.

ExpressJS videos

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Leaflet videos

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  • Review - Labour Party Leaflet Review
  • Demo - Liberal Democrats Party Leaflet Review

Category Popularity

0-100% (relative to ExpressJS and Leaflet)
JavaScript Framework
100 100%
0% 0
Maps
0 0%
100% 100
Developer Tools
100 100%
0% 0
Web Mapping
0 0%
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 Leaflet

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

Leaflet Reviews

Top 15 Price Monitoring Tools For E-Commerce In 2022
Leaflet.js is the most popular open-source JavaScript library for providing mobile-friendly interactive maps. With a simple, easy-to-use interface, it is the perfect solution for all of your data management needs. It operates well right out of the box on all major platforms and devices. The platform offers the following services:
Source: adscale.com
Top 5 Open-Source Google Maps Alternatives in 2022
The Leaflet is another open source interactive maps software that comes with self-hosting capabilities. This map application is lightweight and easy to use. Above all, it is available for all desktop and mobile platforms such as Android, IOS, and web. Further, this offline maps app is highly extensible and offers a well-documented API for third-party integrations. This open...
The Best Data Visualization Tools - Top 30 BI Software
Leaflet leverages OpenStreetMap data and adds HTML5/CSS3 visualizations and interactivity on top to ensure everything is responsive and mobile ready. Its extensive plugin repository lets you add heatmaps , masks and animated markers. Leaflet is open source JavaScript library designed for creating interactive mobile-friendly maps and ships at only 33kb. This Javascript...
Source: improvado.io
Farewell, Google Maps
On a positive note we were impressed by the quality of open source code for operating maps (Leaflet). Some advanced functions which we had implement ourselves on Google side were readily available in Leaflet.
Survey of the Best Online Mapping Tools for Web Developers: The Roadmap to Roadmaps
It is safe to say that Leaflet was born as a reaction to OpenLayers’ bloat, clutter and complexity. Vladimir Agafonkin was asked to build a wrapper around OpenLayers, but he instead created a simple and lightweight OpenLayers alternative, and in May 2011 Leaflet was born. Vladimir focused on simplicity, performance and usability for this online map tool. The core library...
Source: www.toptal.com

Social recommendations and mentions

Based on our record, ExpressJS should be more popular than Leaflet. It has been mentiond 468 times since March 2021. 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 (468)

  • 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 / 2 days ago
  • How to Handle File Uploads with Node.js and Express - Multer Edition
    Basic knowledge of JavaScript and Express. - Source: dev.to / 5 days 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 / 20 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 2 months 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 2 months ago
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Leaflet mentions (134)

  • Building a Location-Based App with Appwrite
    React Leaflet because we’re using React and Leaflet is an open source mobile friendly maps library with lots of plugins. - Source: dev.to / 4 days ago
  • Understanding Mapbox API Integration: A Deep Dive
    Leaflet with OpenStreetMap: Cost-effective open-source solution with no vendor lock-in, lightweight JavaScript library perfect for basic mapping needs, though lacking some advanced features found in commercial options. - Source: dev.to / 18 days ago
  • Data viz library built with Apache ECharts, Leaflet, and shadcn
    This is a terrible title. Info on what leaflet.js is here: https://leafletjs.com/. Took me a lot longer than I'd like to find that, and I'm still not sure what it has to do with the majority of those examples. - Source: Hacker News / about 1 month ago
  • Show HN: Leaflet.pub a web app for delightful documents
    Just as an FYI: "leaflet" is the name of a popular web mapping JS library. https://leafletjs.com/ May or may not be relevant for you, but if you're releasing client libraries of any sort, it might be good to be aware of. Either way, looks nifty!! - Source: Hacker News / 2 months ago
  • The Tools and APIs That Made My GeoGuessr 🌍 Project Possible
    For the map interface, I chose Leaflet.js. It’s an open-source JavaScript library for interactive maps. I liked it because it’s lightweight and easy to use. With Leaflet, I could display the map, add markers, and let users interact with it seamlessly. - Source: dev.to / 3 months ago
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What are some alternatives?

When comparing ExpressJS and Leaflet, 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

jQuery - The Write Less, Do More, JavaScript Library.

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

React Native - A framework for building native apps with React

Laravel - A PHP Framework For Web Artisans

Babel - Babel is a compiler for writing next generation JavaScript.