Top 12 Open-Source Alternatives to Blazor

The top open-source alternatives to Blazor are ExpressJS, React, and Laravel. One of the criteria for ordering this list is the number of mentions that products have on reliable external sources. You can suggest additional sources through the form here.

ExpressJS Landing Page
1

ExpressJS

Sinatra inspired web development framework for node.js -- insanely fast, flexible, and simple
Pricing:
- Open Source
#JavaScript Framework #Node.js Framework #Web Frameworks 425 social mentions
React Landing Page
2

React

A JavaScript library for building user interfaces
Pricing:
- Open Source
#Javascript UI Libraries #JS Library #JavaScript Framework 777 social mentions
Laravel Landing Page
3

Laravel

A PHP Framework For Web Artisans
Pricing:
- Open Source
#Developer Tools #Web Frameworks #PHP Framework 198 social mentions
Flask Landing Page
4

Flask

a microframework for Python based on Werkzeug, Jinja 2 and good intentions.
Pricing:
- Open Source
#Python Web Framework #Web Frameworks #Developer Tools 42 social mentions
Adonis JS Landing Page
5

Adonis JS

AdonisJs is a Node.js web framework with breath of fresh air and drizzle of elegant syntax on top of it
Pricing:
- Open Source
#Web Frameworks #JavaScript Framework #Javascript Web Framework 70 social mentions
Appsmith Landing Page
6

Appsmith

Appsmith is an open source web framework for building internal tools, admin panels, dashboards, and workflows.
Pricing:
- Open Source
#Rapid Application Development #No Code #Developer Tools 6 social mentions
Fuse Landing Page
7

Fuse

Fuse is a UX tool suite for mobile app designers and developers.
Pricing:
- Open Source
#Mobile App Dev Platform #Mobile App Builder #Mobile Apps
Flutter.dev Landing Page
8

Flutter.dev

Build beautiful native apps in record time 🚀
Pricing:
- Open Source
#Development Tools #Application Builder #Mobile App Development 341 social mentions
Vaadin Framework Landing Page
9

Vaadin Framework

Vaadin is a web application framework for Rich Internet Applications (RIA).
Pricing:
- Open Source
#Developer Tools #Web Frameworks #JavaScript Tools 34 social mentions
Koa.js Landing Page
10

Koa.js

Next generation web framework for node.js
Pricing:
- Open Source
#Web Frameworks #MVC Framework #NodeJS Framework 36 social mentions
FastAPI Landing Page
11

FastAPI

FastAPI is an Open Source, modern, fast (high-performance), web framework for building APIs with Python 3.6+ based on standard Python type hints.
Pricing:
- Open Source
- Free
#Developer Tools #API Tools #Python Programming 235 social mentions
Webix UI Landing Page
12

Webix UI

An enterprise JavaScript Library for cross-platform app development with HTML5 JavaScript widgets and easy integration with most popular JavaScript Frameworks.
Pricing:
- Open Source
- Freemium
- Free Trial
- $349.0 / One-off (Individual License, One project + One developer)
#Javascript UI Libraries #JavaScript Framework #JS Library 6 social mentions