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Jason Miller

Jason Miller is a JavaScript developer and the creator of the open-source front-end framework Preact; he previously worked in web developer relations at Google and now works on developer experience at Shopify.

Contents6 sections
Key facts

Around December 2014: Starting Preact

According to a Q&A he published on his personal website in 2017, Preact began as an exercise he wrote to understand how React worked internally, and its early code lived on CodePen until a rough 1.0 version; he recalled that Preact became a framework around December 2014.⁠[1]

Preact is now maintained on GitHub by the preactjs organization and released under the MIT license; the project describes it as an alternative to React of about 3kB with the same modern API.⁠[2]

2017Speaking at Web Directions Code as the Author of Preact

The speaker profile for Australia’s Web Directions Code 2017 conference described him as the author of Preact, with expertise in JavaScript performance analysis and optimization, front-end architecture, and build tooling.⁠[3]

2019–2020Web Developer Relations at Google

A February 2019 episode of ShopTalk Show introduced him as working in web developer relations at Google; a November 2020 Modern Web podcast episode still listed him in developer relations at Google and as a Preact core team member. These sources do not state when he joined or left Google.⁠[4][5]

As of October 2026: Working at Shopify

As of October 2026, his GitHub profile states that he works on developer experience (DX) at Shopify.⁠[6]

Related Organizations, Websites, and Public Accounts

Preact: Official website: https://preactjs.com/ (opens in a new window)⁠[2]

Shopify: Official website: https://www.shopify.com/ (opens in a new window)⁠[6]

Personal website: Public link: https://jasonformat.com/ (opens in a new window)⁠[6]

X: Public account: https://x.com/_developit (opens in a new window)⁠[6]

GitHub: Public account: https://github.com/developit (opens in a new window)⁠[6]

Sources

  1. Preact AMA on Sideway (opens in a new window)
  2. preactjs/preact (opens in a new window)
  3. Web Directions Code 2017 Australia's Professional JavaScript Development & Front End Engineering Conference (opens in a new window)
  4. 347: Jason Miller and PreactJS (opens in a new window)
  5. S07E13 Modern Web Podcast - The Need for JS Speed: Using Preact (Interview with Jason Miller, Creator of Preact) (opens in a new window)
  6. developit (Jason Miller) · GitHub (opens in a new window)