Bun is the JavaScript runtime written in Zig that bundles a package manager, bundler, and test runner into one binary — all optimized for raw speed. Created by Jarred Sumner and backed by Oven (Series A from Stripe backers), it hit 1.0 in September 2023 with the loudest pink in dev-tools and a cinnamon-bun mascot that refuses to take itself seriously.

The brand identity is maximum personality: hot-pink pages, oversized Inter headlines, benchmark-bar charts proving "Bun is fast — like, really fast," and a warm bakery undertone that softens the performance-obsessed engineering beneath. It is a runtime that thinks it's a bakery, and the aesthetic is unapologetically fun.