Webpack Developer(s) Tobias Koppers, Sean Larkin, Johannes Ewald, Juho Vepsäläinen, Kees Kluskens and Webpack contributors Initial release Mar 10, 2012 (Mar 10, 2012) Stable release 4.0.0 / February 25, 2018 (2018-02-25)[1] Repository github.com/webpack/webpack Development status Active Written in JavaScript Operating system Cross-platform License MIT License Website webpack.js.org