Who founded Bun?

Answer

About Bun

Bun was founded by Jarred Sumner.

Bun was founded by Jarred Sumner (@jarredsumner on X, @Jarred-Sumner on GitHub). It launched in 2021. The product is in the Developer Tools category on Startup Spotlight.

Source

This answer is drawn from the Bun listing on Startup Spotlight, last updated May 20, 2026. For the full profile, see the Bun listing.

Other questions about Bun

• What is Bun?

  Bun is develop, test, run, and bundle JavaScript & TypeScript projects.

• When was Bun launched?

  Bun launched in 2021.