Bun vs Node.js in 2026
Bun vs Node.js is an all-in-one toolkit against the standard JavaScript runtime. Bun runs on JavaScriptCore, the engine from Safari, and ships a package manager, test runner and bundler in one binary, with TypeScript and JSX running directly. Node.js runs the V8 engine from Chrome, comes with npm, and since v22.18.0 runs TypeScript files with only erasable syntax without flags.
Facts and prices checked on against the sources listed below.
Quick verdict
Pick Bun for new projects and scripts where one fast binary replaces npm, a test runner and a bundler, and your dependencies work on it.
Node.js
PriceFree, open source
Pick Node.js for production services that need long-term support, the widest package compatibility and the runtime every host supports.
Bun vs Node.js at a glance
| Feature |  Bun | Node.js |
|---|---|---|
| Engine | JavaScriptCore (from Safari) | V8 (from Chrome) |
| Built in tools | Package manager, test runner, bundler, type checker, linter, formatter | npm, the standard package manager |
| TypeScript | Runs .ts and .tsx files directly | Type stripping without flags from v22.18.0; no enums or namespaces |
| Node compatibility | Aims to be a drop-in replacement; an ongoing effort | The reference |
| Latest version | 1.4.4 | v26.13.0 LTS; v27 in alpha |
| Support policy | Not covered on the docs page | LTS lines get critical fixes for 30 months in total |
| Release cycle | Not covered on the docs page; canary builds on npm | Yearly from Node.js 27; each major becomes LTS after six months |
| GitHub stars | 96.5k | 123.1k |
| Free tier | Free and open source | Free and open source |
What each one is (checked Oct 2026)
Node.js is a free, open source, cross-platform JavaScript runtime. It runs the V8 engine, the core of Google Chrome, outside the browser, and it is built around an event loop for scalable network apps. npm is its standard package manager.
Bun describes itself as a drop-in replacement for Node.js. It runs on JavaScriptCore, the engine Apple built for Safari, and puts a package manager, test runner and bundler in the same binary, with a type checker, linter and formatter listed in its docs too. TypeScript and JSX files run directly.
TypeScript
This used to be a clear win for Bun. It still runs .ts, .tsx and .jsx files with no setup. Node.js has caught up for simple cases: from v22.18.0 it runs TypeScript files without flags when they use only erasable syntax, which means types that can be removed without changing the JavaScript. Node does not type check, does not read tsconfig.json to run code, and still needs a build step for enum, parameter properties, namespaces with runtime code and import aliases. Older versions need the --experimental-strip-types flag.
Compatibility
Node.js is the reference that npm packages are written for. Bun aims for full compatibility with Node.js globals and modules, and its docs call that an ongoing effort. In practice, test your dependencies, especially native modules, before moving a production service.
Versions and support
Bun 1.4.4 is the latest release at the time of writing, with canary builds published on npm.
Node.js v26, v24 (Krypton) and v22 (Jod) are LTS lines, with v26.13.0 marked as the latest LTS, and v27 entered alpha on 29 October 2026. LTS lines typically get critical fixes for 30 months in total. From Node.js 27, a new major ships once a year and moves to LTS after six months as Current, so there are no more short-lived odd-numbered releases.
When to pick Bun
- You start a new project and want one tool for installs, tests and bundling.
- You write scripts and small services in TypeScript and want zero setup.
- Your dependencies run on Bun in your own tests.
When to pick Node.js
- You run production services that need a long support window.
- You depend on native modules or less common Node APIs.
- Your host or platform supports Node.js first.
You can also mix them, for example Bun as the package manager and test runner in development and Node.js in production, as long as your tests pass on both. For the web framework on top, read Hono vs Express, and for the build step, Vite vs webpack.
FAQ
Is Bun faster than Node.js?
Bun is built for speed, and installs and test runs are often where people notice it first. We have not run our own benchmark, and speed depends on your code and dependencies, so measure your own app on both before you switch for speed alone.
Can Bun run Node.js apps?
Bun calls itself a drop-in replacement for Node.js and aims for full compatibility with Node.js globals and modules. Its docs say this is an ongoing effort, so test native modules and less common APIs before you move a production app.
Can Node.js run TypeScript now?
Yes, with limits. From v22.18.0 Node.js runs TypeScript files without flags if they use only erasable syntax. It does not type check, and syntax that needs code generation, such as enum and namespaces with runtime code, still needs a build step. Bun runs .ts and .tsx directly.
Which Node.js version should I use?
An LTS line. At the time of writing v26, v24 and v22 are LTS, with v26.13.0 marked as the latest LTS, and v27 is in alpha. From Node.js 27 a new major ships once a year.
Sources, checked October 30, 2026
Prices and plans change often. If something here is out of date, tell us through the contact page.