StackBlitz

[2] The platform allows server-side software such as Node.js to be run entirely in the web browser, enabling fully online full-stack development.

[4] StackBlitz was released to the public on August 2, 2017 by entrepreneur Eric Simons as an online integrated development environment for creating and sharing Angular and React projects.

[1] Prior to launching StackBlitz, Simons had attracted media attention by secretly living at AOL headquarters for two months in 2011 while working on a different startup company.

[5][6][7] In May 2021, StackBlitz released WebContainers, a containerization solution that allowed server-side runtime environments such as Node.js to operate fully with web browsers.

The software primarily emphasizes JavaScript development and has a large number of web framework templates readily available.