# Bun

> Fast JavaScript runtime, bundler and package manager

- Website: https://bun.sh/?ref=swipetolaunch&utm_source=swipetolaunch&utm_medium=referral&utm_campaign=markdown
- Score: 58% approval
- Swipes: 12 total — 7 right, 5 left
- Ranked on the board: yes
- Listing: Free; votes are counted the same as for every listing
- Categories: Developer Tools
- Tags: JavaScript, CLI, Open Source
- Pricing: free
- Domain Rating: 84/100, a backlink-authority score for bun.sh, read 2026-10-25
- Submitted: 2026-09-13
- Page: https://swipetolaunch.com/p/bun

## About

Bun is a JavaScript runtime built on JavaScriptCore, bundling a package manager, test runner and bundler into one binary.

## How the score works

The percentage is the raw share of swipes that went right. Rankings weigh that share against the number of swipes (a prior of 25 swipes at 50%), so a high score from a handful of swipes ranks below a slightly lower score from many. Anyone can swipe without an account; each browser or account swipes a product once.