Software Alternatives, Accelerators & Startups

React VS Bun.sh

Compare React VS Bun.sh and see what are their differences

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React logo React

A JavaScript library for building user interfaces

Bun.sh logo Bun.sh

Bun is an all-in-one JavaScript runtime & toolkit designed for speed, complete with a bundler, test runner, and Node.js-compatible package manager.
  • React Landing page
    Landing page //
    2023-04-19
  • Bun.sh Landing page
    Landing page //
    2023-10-11

Bun is a new JavaScript runtime built from scratch to serve the modern JavaScript ecosystem. It has three major design goals:

  1. Speed. Bun starts fast and runs fast. It extends JavaScriptCore, the performance-minded JS engine built for Safari. As computing moves to the edge, this is critical.

  2. Elegant APIs. Bun provides a minimal set of highly-optimimized APIs for performing common tasks, like starting an HTTP server and writing files.

  3. Cohesive DX. Bun is a complete toolkit for building JavaScript apps, including a package manager, test runner, and bundler.

Bun is designed as a drop-in replacement for Node.js. It natively implements hundreds of Node.js and Web APIs, including fs, path, Buffer and more.

The goal of Bun is to run most of the world's server-side JavaScript and provide tools to improve performance, reduce complexity, and multiply developer productivity.

React features and specs

  • Component-Based Architecture
    React encourages the creation of reusable UI components, which can be leveraged to build complex user interfaces efficiently. This promotes better code organization and separation of concerns.
  • Virtual DOM
    React uses a virtual DOM to optimize and accelerate the process of updating the browser’s DOM, significantly improving application performance.
  • Strong Community and Ecosystem
    React has a large and active community, which means plenty of third-party libraries, tools, and community support are readily available to assist developers.
  • JSX Syntax
    React’s JSX syntax allows developers to write HTML structures within JavaScript code, making the code more readable and easier to debug.
  • Unidirectional Data Flow
    React promotes a unidirectional data flow, which helps maintain the predictability and ease of debugging, especially for larger applications.
  • Extensive Documentation
    React's official documentation is comprehensive, well-organized, and provides numerous examples and tutorials to help developers get started and advance their skills.

Possible disadvantages of React

  • Steep Learning Curve
    React comes with a steep learning curve for beginners, especially those unfamiliar with JavaScript ES6 and JSX syntax.
  • Boilerplate Code
    Setting up a React project often requires boilerplate code, which can be cumbersome and time-consuming compared to simpler frameworks.
  • Fast-Paced Development
    React and its associated libraries evolve rapidly, necessitating frequent updates and learning new patterns, which can be overwhelming for developers.
  • Complexity in Larger Applications
    As a React application grows in size, managing state and props across components can become complex, sometimes necessitating additional state management libraries like Redux or Context API.
  • SEO Challenges
    React, being a JavaScript library, can present challenges for search engine optimization (SEO) due to Googlebot's limitations in executing JavaScript, although this can be mitigated with server-side rendering (SSR) or static site generation (SSG).

Bun.sh features and specs

  • Speed
    Bun.sh is designed for performance and is optimized for running JavaScript and TypeScript quickly. This can lead to faster development cycles and more efficient runtime performance.
  • Built-in Tools
    Bun.sh comes with a built-in bundler, transpiler, and package manager. This reduces the need for additional tooling and simplifies the development setup.
  • TypeScript Support
    Bun.sh has native support for TypeScript, making it easier for developers who prefer strongly typed languages to work seamlessly without additional configuration.
  • Compatibility
    Bun aims to be compatible with existing npm packages, reducing friction in adopting it for existing projects.
  • Lower Resource Usage
    Bun is designed to use fewer resources compared to some traditional Node.js setups, which could lead to cost savings in a production environment.

Possible disadvantages of Bun.sh

  • Ecosystem Maturity
    Bun.sh is relatively new compared to established tools like Node.js and may lack the ecosystem maturity, comprehensive documentation, and community support available for more established platforms.
  • Adoption Risk
    Early adoption of new technology can be risky. As Bun.sh is still evolving, there might be breaking changes or unstable features in future releases.
  • Learning Curve
    Developers who are accustomed to traditional Node.js environments might face a learning curve when adjusting to Bun.sh’s different approach and built-in tools.
  • Debugging and Error Handling
    Given its relative youth, Bun.sh might not yet have the robust debugging tools and error handling practices that more mature ecosystems provide.
  • Platform-Specific Issues
    There may be platform-specific issues or limitations, especially in less common development environments, which might require workarounds or lead to inconsistent behavior.

React videos

What Is React?

More videos:

  • Review - NOT Worth Buying? Nike EPIC REACT FLYKNIT 2 vs Epic React REVIEW
  • Review - NIKE REACT INFINITY RUN FLYKNIT REVIEW | The Ginger Runner

Bun.sh videos

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

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Category Popularity

0-100% (relative to React and Bun.sh)
Javascript UI Libraries
100 100%
0% 0
JavaScript Runtime
0 0%
100% 100
Developer Tools
95 95%
5% 5
JavaScript
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 React and Bun.sh

React Reviews

Top JavaScript Frameworks in 2025
ReactJS is a JavaScript based UI development library which is developed by Facebook. It is an open-source framework which is widely used by developers for web development. One of the major reasons why React.JS is widely popular is because it uses Virtual DOM. This enables developers to create web applications faster.
Source: solguruz.com
The 20 Best Laravel Alternatives for Web Development
React’s the cool kid on the block, turning heads since Facebook dropped it at our feet. Building dynamic user interfaces feels less like coding, more like crafting with this JavaScript library.
Top 9 best Frameworks for web development
React uses a virtual DOM to optimize the performance of UI updates and follows a one-way data flow for easy tracking of data changes. With its active community and abundance of third-party resources and libraries, React is a solid choice for web development.
Source: www.kiwop.com
9 Best JavaScript Frameworks to Use in 2023
React can be used as a base in the development of single-page or mobile applications. However, React is concerned with rendering data to the DOM, so creating React apps usually requires additional libraries for state management, routing, and interaction with an API.
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

Bun.sh Reviews

We have no reviews of Bun.sh yet.
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Social recommendations and mentions

Based on our record, React should be more popular than Bun.sh. It has been mentiond 814 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.

React mentions (814)

  • Indie Hacking with Open Source Tools: Innovating on a Budget
    One inspiring example is a developer building a "Todoist Clone" using a combination of React, Node.js, and MongoDB. The developer tapped into open source libraries and community support to create a highly responsive task management application. This project underscores how indie hackers can achieve rapid development and adaptation with minimal budget – a theme echoed in several indie hacking success stories. - Source: dev.to / 5 days ago
  • Next.js Localization: How to Build a Multilingual Website with Next-Intl
    Next.js is a very popular framework built on top of the React.js library and it provides the best Development Experience for building applications. It offers a bunch of features like:. - Source: dev.to / 18 days ago
  • Web Development Using React Framework
    Explore the official React documentation. - Source: dev.to / about 1 month ago
  • Monorepo Tutorial With Lerna, Storybook & Next.js
    We’ll be creating the components package inside the packages directory. In this monorepo package, we’ll be building React components which will be consumed by our Next.js application (front-end package). - Source: dev.to / about 1 month ago
  • Migrating from AngularJS to React
    After evaluating our options including upgrading from AngularJS to Angular (the name for every version of Angular 2 and beyond) or migrating and rewriting our application in a completely new JavaScript framework: React. We ultimately chose to go with ReactJS. - Source: dev.to / about 1 month ago
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Bun.sh mentions (200)

  • 🚀 Switching from Node + Express to Hono + Bun and I’m not looking back.
    Let’s talk real — Express had its moment. But the dev world? It's moving fast. I recently jumped into building APIs using Hono (tiny, fast, edge-native framework) with Bun (next-gen JS runtime), and honestly... The experience is smooth, fast, type-safe, and just way more modern. - Source: dev.to / 8 days ago
  • Deno's Decline
    Https://bunny.net/ - a CDN, it has nothing to do with https://bun.sh/ as far as I can tell. - Source: Hacker News / 8 days ago
  • Flash-install
    Inspired by the speed of Bun, the reliability of Yarn, and the efficiency of PNPM. - Source: dev.to / 14 days ago
  • The Case for IRIS and JavaScript
    An early incarnation of server-side JavaScript was created by Netscape around the same time, but it wan't particularly successful.  It wasn't really until Ryan Dahl created Node.js in about 2010 that server-side JavaScript really took off and became "a thing".  More recently a serious competitor to Node.js - Bun - has emerged: its main advantage over Node.js is its stellar performance. - Source: dev.to / 16 days ago
  • JavaScript Lambda Functions Using a Bun Custom Runtime
    I've previously tried out Lambda functions with a custom runtime using Deno, and it had great security and convenience benefits. But Deno isn't the only alternative to the Node.js runtime. Bun is a more recent entrant to the space, but it has an impressive number of features, including not requiring TypeScript to be transpiled, and it makes a lot of claims around speed. Bun also has everything for a custom Lambda... - Source: dev.to / 17 days ago
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What are some alternatives?

When comparing React and Bun.sh, you can also consider the following products

Vue.js - Reactive Components for Modern Web Interfaces

Deno - A secure runtime for JavaScript and TypeScript built with V8, Rust, and Tokio.

Next.js - A small framework for server-rendered universal JavaScript apps

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

Svelte - Cybernetically enhanced web apps

Tailwind CSS - A utility-first CSS framework for rapidly building custom user interfaces.