V8 is a free and open-source JavaScript engine developed by the Chromium Project for Google Chrome and Chromium web browsers.
The project’s creator is Lars Bak.

The first version of the V8 engine was released at the same time as the first version of Chrome: 2 September 2008.

V8 first generates an abstract syntax tree with its own parser.
Then, Ignition generates bytecode from this syntax tree using the internal V8 bytecode format.

V8 can be used in a browser or integrated into independent projects. V8 is used in the following software:

Chromium-based web browsers - Google Chrome, Brave, Opera, Vivaldi and Microsoft Edge.
Couchbase database server
Deno runtime environment
Electron desktop application framework, used by the Atom and Visual Studio Code text editors
MarkLogic database server
NativeScript mobile application framework
Node.js runtime environment
Qt Quick runtime environment

Official website :- https://v8.dev/