Who founded Buttondown?

Answer

About Buttondown

Buttondown was founded by Justin Duke.

Buttondown was founded by Justin Duke (@jmduke on X, @jmduke on GitHub). It launched in 2017. The product is in the Marketing category on Startup Spotlight.

Source

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

Other questions about Buttondown

• What is Buttondown?

  Buttondown is the most beautifully minimal newsletter tool.

• When was Buttondown launched?

  Buttondown launched in 2017.