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

186. A new way to bring garbage collected programming languages efficiently to WebAssembly 01 November 2023 WebAssembly
187. Control-flow Integrity in V8 09 October 2023 security
188. Speeding up V8 heap snapshots 27 July 2023 memory tools
189. WebAssembly tail calls 06 April 2023 WebAssembly
190. Introducing the WebAssembly JavaScript Promise Integration API 19 January 2023 WebAssembly
191. Pointer compression in Oilpan 28 November 2022 internals memory cppgc
192. RegExp v flag with set notation and properties of strings 27 June 2022 ECMAScript
193. Discontinuing release blog posts 17 June 2022 release
194. Retrofitting temporal memory safety on C++ 14 June 2022 internals memory security
195. Faster initialization of instances with new class features 20 April 2022 internals

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