Running PostgreSQL Inside Your Browser

 Yes it is possible thanks to, what else, WebAssembly.  And with it, the emergence of the Postgres playground, brought to us by Crunchy Data, with live-guided SQL exercises for any level.

One of PostgreSQL's engineers had a crazy idea which he has now managed to realize.The idea came from the fact that it was possible to run SQLite inside your browser, so the reasoning was could the same happen for Postgres too?

But compiling an embedded and small in size and scale

DBMS to Webassembly (as sql.js does for instance) is one thing; compiling a full scale client-server one is another. Proof of that is, as the folks at Cruncy Data found out that the web browser simply did not offer the networking features that Postgres needed which was deemed a pretty big obstacle.Or was it ?

full article on i-programmer :

https://www.i-programmer.info/news/84-database/15709-running-postgresql-inside-your-browser.html