Bun

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Bun

Bun

A fast, all-in-one JavaScript toolkit including a runtime, bundler, test runner, and package manager.

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2021Active
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About

Bun is a high-performance JavaScript toolkit designed to streamline the development process. It combines a runtime, package manager, bundler, and test runner into a single executable, offering significant speed improvements and simplifying the developer experience. Bun is compatible with existing Node.js projects and aims to replace traditional tooling with a more cohesive and efficient solution.

Technology stack

detected 2026-07-02
CDN
Cloudflare
EmailGoogle Workspace
Hosting
Vercel
Stack
Tailwind CSS
Analytics
Microsoft ClarityPlausible
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Frequently asked

What does Bun do?

Bun is a high-performance JavaScript toolkit designed to streamline the development process. It combines a runtime, package manager, bundler, and test runner into a single executable, offering significant speed improvements and simplifying the developer experience. Bun is compatible with existing Node.js projects and aims to replace traditional tooling with a more cohesive and efficient solution.

How much funding has Bun raised?

Bun has raised a total of $7M in funding.

Where is Bun headquartered?

Bun is headquartered in San Francisco, United States.

When was Bun founded?

Bun was founded in 2021.

What industry does Bun operate in?

Bun operates in Developer Tools, JavaScript Runtime, Bundler, Transpiler, Package Manager, API Platform.

What is Bun's revenue?

StartupHub estimates Bun's annual revenue at $2.4M (range $567K to $7.0M, 31% confidence), based on comparable companies in the sector.

What is Bun's valuation?

StartupHub estimates Bun's effective valuation at $25.7M (range $17.5M to $42.0M, 10% confidence), based on comparable companies in the sector.