Software Alternatives, Accelerators & Startups

Flask VS Next.js

Compare Flask VS Next.js and see what are their differences

Flask logo Flask

a microframework for Python based on Werkzeug, Jinja 2 and good intentions.

Next.js logo Next.js

A small framework for server-rendered universal JavaScript apps
  • Flask Landing page
    Landing page //
    2023-07-24
  • Next.js Landing page
    Landing page //
    2023-06-19

Flask features and specs

  • Simplicity
    Flask is a micro-framework, meaning it is lightweight, easy to understand, and simple to use. It requires minimal setup to get a web application up and running.
  • Flexibility
    Flask provides flexibility and control over the application's architecture, allowing developers to choose the components they need and avoid unnecessary bloat.
  • Extensibility
    Flask supports various extensions to add capabilities like database integration, form validation, and authentication without compromising its core simplicity.
  • Documentation
    Flask has comprehensive and well-organized documentation, making it easier for developers to learn and implement features effectively.
  • Community
    Flask has a large and active community, providing ample resources like tutorials, code snippets, and third-party libraries that can help speed up development.
  • Testing
    Flask is designed to be unit tested easily, allowing developers to test their applications and ensure reliability.

Possible disadvantages of Flask

  • Scalability
    Flask may not be as scalable as some other frameworks for very large applications due to its minimalist design and lack of built-in features.
  • Boilerplate Code
    Since Flask requires you to integrate and configure many components manually, codebases in Flask can sometimes contain a lot of boilerplate code.
  • Opinionated Architecture
    While Flask provides flexibility, it also means there are fewer conventions. Developers must make more architectural decisions, which can be challenging for large team collaboration.
  • Limited Tools
    Compared to more comprehensive frameworks, Flask offers fewer built-in tools and features, which may necessitate additional plugins or custom implementations.
  • Learning Curve for Complex Applications
    While Flask is easy to learn for simple applications, it can become complex to manage as the application grows, requiring a good understanding of design patterns and software architecture.

Next.js features and specs

  • Server-Side Rendering (SSR)
    Next.js supports SSR, allowing pages to be rendered on the server-side before being sent to the client. This results in improved SEO and faster initial page loads.
  • Static Site Generation (SSG)
    Enables pre-rendering pages at build time, which can further improve performance and scalability while allowing for dynamic generation when needed.
  • API Routes
    Next.js allows you to build API endpoints directly in the application, simplifying the process of creating back-end services and endpoints.
  • File-Based Routing
    Offers a simple file-based routing mechanism where the file structure maps directly to the app’s routes, making it easier to manage and understand.
  • Automatic Code Splitting
    Automatically splits code at the page level, reducing the initial load time and improving performance by only loading necessary JavaScript.
  • TypeScript Support
    Built-in support for TypeScript, allowing developers to use static type checking and other TypeScript features easily.
  • Developer Experience
    Provides a great developer experience with features like fast refresh, hot reloading, and detailed error reporting.
  • Rich Ecosystem
    Benefiting from the rich ecosystem of the React community and integrating well with other libraries and tools.
  • Internationalization
    Built-in support for internationalization helps developers build multilingual applications with ease.
  • Community and Support
    Strong community and extensive documentation provide ample support and resources for new and experienced developers alike.

Possible disadvantages of Next.js

  • Learning Curve
    The robust feature set of Next.js can present a steep learning curve for developers who are new to React or server-side rendering concepts.
  • Configuration Overhead
    Although Next.js aims for simplicity, complex projects may still require significant configuration and customization.
  • Performance Overhead
    SSR can introduce additional server load and latency compared to static site generators, especially under high traffic conditions.
  • Deployment Complexity
    Deploying Next.js applications that leverage SSR or API routes may be more complex and could require more sophisticated server infrastructure.
  • Vendor Lock-In
    If heavily relying on Next.js-specific features, moving away from the framework to another solution could require significant refactoring.
  • Bundle Size
    Without careful optimization, client-side bundle sizes can become large, negatively affecting the application’s performance.
  • Build Times
    For large applications, build times can be significant, impacting the development cycle and deployment times.
  • Dependencies
    Next.js introduces its own set of dependencies and tooling, which might complicate version management and compatibility with other tools.

Flask videos

Built To Last A Life Time - Ragproper Modern Glass Flask Review

More videos:

  • Review - The Hip Flask Guide - Gentleman's Gazette
  • Review - 10 Best Flasks 2019

Next.js videos

Next.js: The React Framework - JS Monthly - July 2019

More videos:

  • Review - Gatsby vs Next.js: Which does SSG Better?

Category Popularity

0-100% (relative to Flask and Next.js)
Developer Tools
15 15%
85% 85
Web Frameworks
28 28%
72% 72
Python Web Framework
100 100%
0% 0
Javascript UI Libraries
0 0%
100% 100

User comments

Share your experience with using Flask and Next.js. For example, how are they different and which one is better?
Log in or Post with

Reviews

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

Flask Reviews

The 20 Best Laravel Alternatives for Web Development
Flask is the micro that’s got your back without trying to run the show. It comes with the essentials but trusts you to pick your tools — no baggage attached, truly Pythonic at heart.
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
25 Python Frameworks to Master
You’ll also have access to some extension packages like Flask-RESTful, which adds support for building powerful REST APIs, and Flask-SQLAlchemy, a convenient way to use SQLAlchemy in your flask app.
Source: kinsta.com
3 Web Frameworks to Use With Python
Flask is a micro web framework for building web applications with Python. Here is the official web page of Flask.
Top 10 Phoenix Framework Alternatives
Flask is a micro-framework, i.e., it does not bundle tools and libraries and instead uses third party libraries to deliver functionalities.

Next.js Reviews

Top 10 Next.js Alternatives You Can Try
Next.js is a well-known platform most of you utilize to build a responsive website. However, if you are annoyed by its limited features, consider Next.js alternatives because flexibility and faster loading speed are always the top concerns of every developer. For this reason, you might need to read this article to explore the top 10 Nextjs Alternatives for the exciting world...
20 Next.js Alternatives Worth Considering
When it comes to building modern web applications, finding the right framework can be a game-changer. Next.js is often a top choice, but there are several Next.js alternatives worth considering.
10 Best Next.js Alternatives to Consider Today
For those who have been accustomed to the benefits of React Next.js, keeping an eye on the latest version is crucial. Next.js's continuous improvement and updates in Next.js enhance its capabilities, ensuring developers can access cutting-edge features and optimizations. Whether starting a new project or maintaining an existing Next.js website, staying informed about the...
9 Best JavaScript Frameworks to Use in 2023
Next.js uses JavaScript and React components to create the UI. Next.js is influenced by React Router, Webpack, Node ecosystem, and community libraries. The feature that sets Next.js apart from other frameworks is its ability to automatically generate pages based on the file system structure of the project. For example, if there is a _posts folder in the root directory,...
Source: ninetailed.io
JavaScript: What Are The Most Used Frameworks For This Language?
Some of its top features include server-side rendering, automatic code splitting, client-side routing, built-in CSS support, static site generation and API routes. Overall, Next.JS is a powerful and flexible framework that provides developers with a simple and intuitive way to build complex React applications with ease. It is widely used in the React community and has a...
Source: www.bocasay.com

Social recommendations and mentions

Based on our record, Next.js seems to be a lot more popular than Flask. While we know about 1066 links to Next.js, we've tracked only 42 mentions of Flask. 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.

Flask mentions (42)

  • PSET 9 Finance - What is "disable response caching" and the function they ask to notice
    "After configuring Flask, notice how this file disables caching of responses (provided you’re in debugging mode, which you are by default in your code50 codespace), lest you make a change to some file but your browser not notice. ". Source: about 2 years ago
  • How to Send an Email in Python
    Flask, which offers a simple interface for email sending— Flask Mail. (Check here how to send emails with Flask). - Source: dev.to / over 2 years ago
  • Plotting Bookmarks with Flask, Matplotlib, and OAuth 2.0
    Lang="en"> Plot Bookmarks!{% block title %}{% endblock %} rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.2.1/css/bootstrap.min.css" /> class="container"> Plot Bookmarks by Date {% block containercontent %}{% endblock %} /> class="footer"> class="text-muted"> >This is a... - Source: dev.to / almost 3 years ago
  • Determining what version of Flask is installed
    What's the easiest way to determine which version of Flask is installed? Source: about 3 years ago
  • What is the point of uWSGI?
    I'm looking at the WSGI specification and I'm trying to figure out how servers like uWSGI fit into the picture. I understand the point of the WSGI spec is to separate web servers like nginx from web applications like something you'd write using Flask. What I don't understand is what uWSGI is for. Why can't nginx directly call my Flask application? Can't flask speak WSGI directly to it? Why does uWSGI need to get... Source: about 3 years ago
View more

Next.js mentions (1066)

  • 25+ Top UI frameworks & libraries for Next.js
    If you are overwhelmed with dozens of UI frameworks and libraries available, you are not alone as a developer. With so many UI Frameworks for Nextjs each claiming to be the best it’s tough to decide which one truly fits your project. - Source: dev.to / 3 days ago
  • Build a Job Application and Interview App with Next.js, Stream & Firebase
    In this tutorial, you will learn how to build a job application and interviewing platform using Next.js, Stream, and Firebase. This app will allow recruiters to post job openings, review applications, and schedule interviews. Job seekers can also apply for jobs and communicate with recruiters. - Source: dev.to / 11 days ago
  • Next.js Localization: How to Build a Multilingual Website with Next-Intl
    In this section, you will learn how to bootstrap a basic Next.js application. - Source: dev.to / 12 days ago
  • Progressive frustration
    How do I retro-fit nextjs instructions on the Flagsmith website to fit Deno's fresh over preact? - Source: dev.to / 15 days ago
  • How do I use Vercel to host Umami?
    Vercel is a full CI/CD platform, that provides infrastructure and whole more for your projects. It's expensive when you're bigger, but on my scale the price is great - 0$! Also, they are responsible for next.js, so we can consider them as solid brands. To be totally honest I'm really impressed by their CI/CD system, it works really good for standard apps! - Source: dev.to / 19 days ago
View more

What are some alternatives?

When comparing Flask and Next.js, you can also consider the following products

Django - The Web framework for perfectionists with deadlines

Vercel - Vercel is the platform for frontend developers, providing the speed and reliability innovators need to create at the moment of inspiration.

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

React - A JavaScript library for building user interfaces

Laravel - A PHP Framework For Web Artisans

Nuxt.js - Nuxt.js presets all the configuration needed to make your development of a Vue.js application enjoyable. It's a perfect static site generator.