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

182. Introducing the WebAssembly JavaScript Promise Integration API 19 January 2023 WebAssembly
183. Pointer compression in Oilpan 28 November 2022 internals memory cppgc
184. RegExp v flag with set notation and properties of strings 27 June 2022 ECMAScript
185. Discontinuing release blog posts 17 June 2022 release
186. Retrofitting temporal memory safety on C++ 14 June 2022 internals memory security
187. Faster initialization of instances with new class features 20 April 2022 internals
188. V8 release v9.9 31 January 2022 release
189. Oilpan library 10 November 2021 internals memory cppgc
190. V8 release v9.7 05 November 2021 release
191. WebAssembly Dynamic Tiering ready to try in Chrome 96 29 October 2021 WebAssembly

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