Bun vs Node.js: Everything you need to know

• zod

  294 31,015 9.3 TypeScript

  TypeScript-first schema validation with static type inference

Bun's test runner is not just about compatibility; it's about speed. In a benchmark against the test suite for Zod, Bun proved to be 13x faster than Jest and 8x faster than Vitest. This speed advantage is further highlighted by Bun's matchers, which are implemented in fast native code. For instance, expect().toEqual() in Bun is a staggering 100x faster than Jest and 10x faster than Vitest.

• zig

  818 31,339 10.0 Zig

  General-purpose programming language and toolchain for maintaining robust, optimal, and reusable software.

  

Both Node.js and Bun are runtimes. Node.js is primarily written in C++ where as Bun is written with a low-level general purpose programming language called Zig. But that is just the tip of the ice berg. Let’s take a closer look at other differences when treating Bun as a runtime alone.

• SurveyJS

  surveyjs.io featured

  Open-Source JSON Form Builder to Create Dynamic Forms Right in Your App. With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js.

  

• webpack

  333 64,232 9.8 JavaScript

  A bundler for javascript and friends. Packs many modules into a few bundled assets. Code Splitting allows for loading parts of the application on demand. Through "loaders", modules can be CommonJs, AMD, ES6 modules, CSS, Images, JSON, Coffeescript, LESS, ... and your custom stuff.

  

In the Node.js ecosystem, bundling is typically handled by third-party tools rather than Node.js itself. Some of the most popular bundlers in the Node.js world include Webpack, Rollup, and Parcel, offering features like code splitting, tree shaking, and hot module replacement.

• v8.dev

  73 922 7.8 JavaScript

  The source code of v8.dev, the official website of the V8 project.

  

While Node.js uses Google's V8 engine that power's Chrome browser, Bun uses JavaScriptCore (JSC), which is an open source JavaScript engine developed by Apple for Safari.

• Rollup

  71 24,897 9.5 JavaScript

  Next-generation ES module bundler

  

In the Node.js ecosystem, bundling is typically handled by third-party tools rather than Node.js itself. Some of the most popular bundlers in the Node.js world include Webpack, Rollup, and Parcel, offering features like code splitting, tree shaking, and hot module replacement.

• parcel

  171 43,189 9.5 JavaScript

  The zero configuration build tool for the web. 📦🚀

  

In the Node.js ecosystem, bundling is typically handled by third-party tools rather than Node.js itself. Some of the most popular bundlers in the Node.js world include Webpack, Rollup, and Parcel, offering features like code splitting, tree shaking, and hot module replacement.

• jest

  479 43,703 9.5 TypeScript

  Delightful JavaScript Testing.

  

While Node.js developers have traditionally relied on Jest for their testing needs, Bun introduces a built-in test runner that promises speed, compatibility, and a range of features that cater to modern development workflows.

• InfluxDB

  www.influxdata.com featured

  Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

  

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