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

183. WebAssembly tail calls 06 April 2023 WebAssembly
184. Introducing the WebAssembly JavaScript Promise Integration API 19 January 2023 WebAssembly
185. Pointer compression in Oilpan 28 November 2022 internals memory cppgc
186. RegExp v flag with set notation and properties of strings 27 June 2022 ECMAScript
187. Discontinuing release blog posts 17 June 2022 release
188. Retrofitting temporal memory safety on C++ 14 June 2022 internals memory security
189. Faster initialization of instances with new class features 20 April 2022 internals
190. V8 release v9.9 31 January 2022 release
191. Oilpan library 10 November 2021 internals memory cppgc
192. V8 release v9.7 05 November 2021 release

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