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Panel VS ExpressJS

Compare Panel VS ExpressJS and see what are their differences

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Panel logo Panel

High-level app and dashboarding solution for Python

ExpressJS logo ExpressJS

Sinatra inspired web development framework for node.js -- insanely fast, flexible, and simple
  • Panel Landing page
    Landing page //
    2023-05-28
  • ExpressJS Landing page
    Landing page //
    2021-10-14

Panel features and specs

  • Flexibility
    Panel provides a flexible framework for creating interactive web applications, dashboards, and complex visualizations using Python, allowing developers to leverage their existing Python code without needing to switch to JavaScript or another language.
  • Integration with HoloViz Ecosystem
    Panel integrates seamlessly with other HoloViz tools like HoloViews, GeoViews, and Datashader, enhancing its capabilities for building rich, data-visualization-centric applications.
  • Support for Multiple Backends
    It supports multiple backends, including Bokeh, Plotly, and Matplotlib, giving developers the flexibility to choose their preferred plotting library for rendering their visualizations.
  • Dynamic and Reactive Features
    Panel supports dynamic and reactive UI components that update automatically as data changes, facilitating the creation of interactive and live data applications.
  • Easy Deployment
    Applications built with Panel can be easily deployed on the web using various options, including deploying on Heroku, AWS, or with simple HTTP servers, which helps in transitioning from development to production.

Possible disadvantages of Panel

  • Steep Learning Curve
    For those unfamiliar with the HoloViz ecosystem or Python-based web development, there can be a steep learning curve associated with mastering Panel and its related tools.
  • Performance Limitations
    While Panel is powerful, it may not perform as well as JavaScript-native solutions for extremely high-frequency, real-time data updates due to the overhead of Python-to-JavaScript communication.
  • Limited Community and Resources
    Although growing, the community and resources are not as extensive as some other more-established frameworks like React or Angular, which may lead to a lack of readily available support or third-party plugins.
  • Complexity with Large Applications
    As applications grow in size and complexity, managing state and ensuring efficient communication between components can become challenging.
  • Dependency on Python Environment
    Panel applications require a running Python environment, which can complicate deployment or hosting compared to purely static or client-side applications.

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.

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.

Panel videos

Ready To Love S7 E8 PANEL REVIEW WITH SPECIAL GUEST #readytolove

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ExpressJS videos

No ExpressJS videos yet. You could help us improve this page by suggesting one.

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Category Popularity

0-100% (relative to Panel and ExpressJS)
Developer Tools
4 4%
96% 96
JavaScript Framework
0 0%
100% 100
Web App
100 100%
0% 0
Productivity
100 100%
0% 0

User comments

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Reviews

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

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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

Social recommendations and mentions

Based on our record, ExpressJS seems to be a lot more popular than Panel. While we know about 470 links to ExpressJS, we've tracked only 10 mentions of Panel. 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.

Panel mentions (10)

  • Show HN: Manganite – Quickly turn Jupyter notebooks into web apps
    Manganite allows easy conversion of Jupyter notebooks into dashboards. Simply annotate existing notebooks with Jupyter magics and serve them as interactive web apps. Manganite has been created to empower master and doctoral students in econ and management to turn research notebooks into interactive dashboards. The students use Python for data analysis, math programming, and basic machine learning. Instead of... - Source: Hacker News / over 1 year ago
  • What python library you are using for interactive visualisation?(other than plotly)
    Https://panel.holoviz.org/ It's a web app framework for Python similar to what Dash does for plotly. It plays nicely with bokeh visuals and I think the front-end is built using bokeh css elements. Source: about 2 years ago
  • How to approach GIS and which language to use
    If you want to build Python dashboards, look at the solara (react-style lib, https://solara.dev/) and panel (https://panel.holoviz.org/). Source: about 2 years ago
  • Ask HN: Fastest way to turn a Jupyter notebook into a website these days?
    My suggestion is https://panel.holoviz.org/ Fully open sourced, makes it easy to make reactive apps with small changes, can even configured as a graphical REPL. - Source: Hacker News / about 2 years ago
  • Updating a page with MQTT
    I am doing something like this in a [panel](https://panel.holoviz.org/) dashboard, which I am currently converting to nicegui. Maybe I can provide an example in some days. Source: about 2 years ago
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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 / 12 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 / 22 days 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 / 26 days ago
  • How to Handle File Uploads with Node.js and Express - Multer Edition
    Basic knowledge of JavaScript and Express. - Source: dev.to / 28 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 / about 1 month ago
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What are some alternatives?

When comparing Panel and ExpressJS, you can also consider the following products

Streamlit - Turn python scripts into beautiful ML tools

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

Dash by Plotly - Dash is a Python framework for building analytical web applications. No JavaScript required.

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

Turtle - New kind of anonymous messaging app

Django - The Web framework for perfectionists with deadlines