# v8/v8

The official mirror of the V8 Git repository

Repository: https://github.com/v8/v8
Canonical: https://ross.abutalabs.com/products/v8
Homepage: https://chromium.googlesource.com/v8/v8.git
Language: C++
License: NOASSERTION
License Family: other
Topics: javascript-engine, virtual-machine, compiler, interpreter, javascript
Last push: 2026-08-26T21:56:19+00:00

## Health v2 (maintenance only)
Score: 77/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 35, longevity 100
- inputs: {"age_days": 4361, "days_push": 7, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 25211, forks 4320 (observed 2026-08-28T04:11:38.064684+00:00)

## What it is
V8 is Google's open-source JavaScript engine that implements ECMAScript (ECMA-262), written in C++. It powers Chromium and Node.js and can be embedded into any C++ application or run standalone.

## Use cases
- embed a JavaScript engine in a C++ application
- understand how JavaScript is compiled and optimized
- run JavaScript outside the browser
- contribute to or study a production JS virtual machine
- benchmark JavaScript execution performance
- build a custom scripting runtime with JS support

## When to choose
- you need a high-performance, spec-compliant ECMAScript engine to embed
- you are building a browser, runtime, or server that executes JavaScript
- you want to work on cutting-edge JIT compilation and VM research

## When to avoid
- you just want to run JavaScript apps - use Node.js or a browser instead
- you need a lightweight scripting engine for constrained embedded devices
- you want a simple-to-build library - V8 has a large, complex build system

## Facets
- artifact type: library
- maturity: active
- function: interpreter, compiler, programming-language
- domain: programming-languages, compilers, developer-tools, performance
- platform: cpp, cross-platform, windows, embedded
- tags: javascript-engine, ecmascript, jit, virtual-machine, chromium, nodejs-runtime, wasm, linux, macos

## Member repositories
- v8/v8 (main) score 77

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:11:38.064684+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T16:56:05.096390+00:00, confidence not recorded.
  - readme: https://github.com/v8/v8 (fetched 2026-08-28T04:11:38.064684+00:00, sha ee5244c62a3d)
  - homepage: https://chromium.googlesource.com/v8/v8.git (fetched 2026-08-29T07:52:57.344107+00:00, sha ba3c80f10ae8)
- Data as of 2026-08-30T08:39:29.467469+00:00.