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JSFiddle VS Bun.sh

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

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JSFiddle logo JSFiddle

Test your JavaScript, CSS, HTML or CoffeeScript online with JSFiddle code editor.

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.
  • JSFiddle Landing page
    Landing page //
    2022-07-11
  • 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.

JSFiddle features and specs

  • Easy Sharing and Collaboration
    JSFiddle allows users to share and collaborate on code snippets effortlessly by generating unique URLs for each project.
  • Real-Time Editing
    Changes made to HTML, CSS, and JavaScript are displayed in real-time, providing instant feedback and streamlining the development process.
  • Supports Multiple Frameworks
    JSFiddle supports various JavaScript frameworks and libraries such as jQuery, Vue.js, and React, allowing developers to experiment with different technologies.
  • Embed Feature
    Users can embed their fiddles directly into websites or blogs, enabling easy demonstration of code and concepts.
  • Version Control
    JSFiddle offers version control, allowing users to save different versions of their code and revert to previous versions if needed.

Possible disadvantages of JSFiddle

  • Limited Backend Support
    JSFiddle is primarily focused on frontend development and does not provide robust backend development capabilities.
  • Performance Issues
    With complex or resource-intensive projects, JSFiddle can experience performance lag, impacting the user experience.
  • Basic IDE Features
    Compared to full-fledged Integrated Development Environments (IDEs), JSFiddle lacks advanced features such as code linting, debugging tools, and extensive plugins.
  • File Management
    JSFiddle does not offer comprehensive file management, making it challenging to work on larger projects with multiple files.
  • Dependency Management
    Managing dependencies can be cumbersome, as JSFiddle does not provide built-in tools to handle package management seamlessly.

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.

Analysis of JSFiddle

Overall verdict

  • JSFiddle is a highly useful and reliable tool for web developers looking for a quick and easy way to test and share code snippets. Its ease of use and collaborative features make it a popular choice in the developer community.

Why this product is good

  • JSFiddle is widely used for testing and showcasing user-created HTML, CSS, and JavaScript code.
  • It provides a simple interface to quickly collaborate and share code snippets.
  • Real-time collaboration features make it easier to work with others.
  • Supports various JavaScript frameworks and extensions, enhancing flexibility.
  • Allows saving and managing public or private code snippets for future reference.

Recommended for

  • Web developers needing a fast way to prototype and demonstrate web functionality.
  • Educators and students in fields related to web development and programming.
  • Teams looking for an online collaborative platform for frontend code examples.
  • Individuals wanting to share code examples with others or ask for debugging help.

Analysis of Bun.sh

Overall verdict

  • Bun.sh is considered a good option, especially for developers seeking high-performance solutions and a streamlined tooling experience. Its focus on speed and integration can make it an attractive choice for certain projects.

Why this product is good

  • Bun.sh, often referred to simply as Bun, is a modern JavaScript runtime that emphasizes speed, performance, and efficiency. It is designed to provide faster startup times and lower latency compared to traditional JavaScript runtimes, like Node.js. Bun also offers an integrated bundler, transpiler, and package manager, which simplifies the development process by reducing the need for additional tools.

Recommended for

  • Developers focusing on performance-intensive applications
  • Teams looking for an all-in-one solution (runtime, bundler, transpiler)
  • Projects with the flexibility to adopt newer, cutting-edge technologies
  • Developers building applications with high startup time sensitivity

JSFiddle videos

+ Add

Dashboard JSFiddle Online JavaScript Editor jQuery, Angular, Backbone, Underscore, Knockout, Y

More videos:

  • Review - 1.3 Using JSFiddle to Create a Simple Web Page

Bun.sh videos

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

Add video

Category Popularity

0-100% (relative to JSFiddle and Bun.sh)

JSFiddle

Bun.sh

Text Editors
100 100%
Text Editors
0% 0
JavaScript Runtime
0 0%
JavaScript Runtime
100% 100
Programming
100 100%
Programming
0% 0
JavaScript
50 50%
JavaScript
50% 50

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare JSFiddle and Bun.sh

JSFiddle Reviews

8 Best Replit Alternatives & Competitors in 2022 (Free & Paid) - Software Discover
Test your javascript, CSS, HTML or coffeescript online with jsfiddle code editor. Jsfiddle – code playground.
Source: www.softwarediscover.com
12 Best Online IDE and Code Editors to Develop Web Applications
JSFiddle cannot be used to host code on your server. The code has to be on JSFiddle and is public all the time.
Source: geekflare.com
6 Coding Playgrounds For Web Developers
What is missing from JSFiddle is live previews. You have to basically refresh the page by clicking on the play button. And compared to other playgrounds, JSFiddle is probably the slowest. Another slightly frustrating quirk of JSFiddle is its run button, sometimes clicking on it doesn’t work, so you’ll have to click a couple more times before it actually runs the code (and...
Source: www.hongkiat.com

Bun.sh Reviews

We have no reviews of Bun.sh yet.
Be the first one to post

Social recommendations and mentions

Bun.sh might be a bit more popular than JSFiddle. We know about 202 links to it since March 2021 and only 202 links to JSFiddle. 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.

JSFiddle mentions (202)

View more

Bun.sh mentions (202)

  • Ask HN: Who is hiring? (June 2025)
    Bun (YC S19) | https://bun.sh | San Francisco, CA; on-site | Visa sponsorship available | Full-time Bun is an incredibly fast all-in-one toolkit for building, installing, running, and testing JavaScript and TypeScript. We were born out of frustration with the fragmented, slow JavaScript ecosystem and are on a mission to make JavaScript development faster and more productive. We are looking to fulfill the following... - Source: Hacker News / 4 days ago
  • Rove : Straight up PostgreSQL migration.
    Rove is a fast, no-fluff migration manager for PostgreSQL built with Bun and TypeScript. It’s built for devs who just want to write raw SQL, version it in folders, and run it with confidence. - Source: dev.to / 21 days ago
  • 🚀 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 / about 1 month 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 / about 1 month ago
  • Flash-install
    Inspired by the speed of Bun, the reliability of Yarn, and the efficiency of PNPM. - Source: dev.to / about 1 month ago
View more

What are some alternatives?

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

CodePen - A front end web development playground.

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

CodeSandbox - Online playground for React

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

Pastebin.com - Pastebin.com is a website where you can store text for a certain period of time.

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

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