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

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

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