What is V8?

V8 is Google’s open source high-performance JavaScript and WebAssembly engine, written in C++. It is used in Chrome and in Node.js, among others. It implements ECMAScript and WebAssembly, and runs on Windows 7 or later, macOS 10.12+, and Linux systems that use x64, IA-32, ARM, or MIPS processors. V8 can run standalone, or can be embedded into any C++ application.

Latest posts and feature explainers

180. RegExp v flag with set notation and properties of strings 27 June 2022 ECMAScript
181. Discontinuing release blog posts 17 June 2022 release
182. Retrofitting temporal memory safety on C++ 14 June 2022 internals memory security
183. Faster initialization of instances with new class features 20 April 2022 internals
184. V8 release v9.9 31 January 2022 release
185. Oilpan library 10 November 2021 internals memory cppgc
186. V8 release v9.7 05 November 2021 release
187. WebAssembly Dynamic Tiering ready to try in Chrome 96 29 October 2021 WebAssembly
188. Finding elements in Arrays and TypedArrays 27 October 2021 ECMAScript
189. V8 release v9.6 13 October 2021 release

More articles can be found in the blog archive and the features section.