# Bun

**Source:** https://www.startuphub.ai/startups/bun
**Profile type:** Startup

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

## 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.

## Key facts

- **Slug:** bun
- **Website:** https://bun.sh/
- **Location:** San Francisco, United States
- **Founded:** 2021-09-14
- **Operating status:** Active
- **Total funding:** $7M
- **Sectors / tags:** Developer Tools, JavaScript Runtime, Bundler, Transpiler, Package Manager, API Platform, Open Source, Test Runner
- **Social:**
  - Twitter: https://twitter.com/bunjavascript
  - GitHub: https://github.com/oven-sh

## 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.

### What is Bun's revenue?

StartupHub estimates Bun's annual revenue at $799K (range $287K to $2.6M, 33% 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.

### 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.

## JSON-LD

Structured data aligned with this page's `<script type="application/ld+json">` (included when the profile is server-rendered).

```json
{
  "@context": "https://schema.org",
  "@graph": [
    {
      "@type": "BreadcrumbList",
      "itemListElement": [
        {
          "@type": "ListItem",
          "position": 1,
          "name": "Home",
          "item": "https://www.startuphub.ai"
        },
        {
          "@type": "ListItem",
          "position": 2,
          "name": "Startups",
          "item": "https://www.startuphub.ai/startups"
        },
        {
          "@type": "ListItem",
          "position": 3,
          "name": "Bun",
          "item": "https://www.startuphub.ai/startups/bun"
        }
      ]
    },
    {
      "@type": "ProfilePage",
      "@id": "https://www.startuphub.ai/startups/bun#webpage",
      "url": "https://www.startuphub.ai/startups/bun",
      "name": "Bun - AI Startup Profile | StartupHub.ai",
      "description": "This is the official profile of Bun. Bun is a startup founded in 2021, operating in Developer Tools and JavaScript Runtime. A fast, all-in-one JavaScript toolkit including a runtime, bundler, test runner, and package manager. Headquartered in San Francisco, United States.",
      "dateModified": "2026-08-17T09:47:17.334+00:00",
      "mainEntity": {
        "@id": "https://www.startuphub.ai/startups/bun#organization"
      }
    },
    {
      "@type": "Organization",
      "@id": "https://www.startuphub.ai/startups/bun#organization",
      "name": "Bun",
      "url": "https://bun.sh/",
      "logo": "https://cdn.startuphub.ai/storage/v1/object/public/entity-images/logos/ba7ac7c2-c932-4575-b851-675a784c014f-square.webp",
      "image": "https://cdn.startuphub.ai/storage/v1/object/public/entity-images/logos/ba7ac7c2-c932-4575-b851-675a784c014f-square.webp",
      "description": "This is the official profile of Bun. Bun is a startup founded in 2021, operating in Developer Tools and JavaScript Runtime. A fast, all-in-one JavaScript toolkit including a runtime, bundler, test runner, and package manager. Headquartered in San Francisco, United States.",
      "sameAs": [
        "https://twitter.com/bunjavascript",
        "https://github.com/oven-sh",
        "https://www.startuphub.ai/startups/bun"
      ],
      "foundingDate": "2021-09-14",
      "address": {
        "@type": "PostalAddress",
        "addressLocality": "San Francisco",
        "addressCountry": "US"
      },
      "knowsAbout": [
        "Developer Tools",
        "JavaScript Runtime",
        "Bundler",
        "Transpiler",
        "Package Manager",
        "API Platform",
        "Open Source",
        "Test Runner"
      ]
    }
  ]
}
```
