# eclipsesource/J2V8

Java Bindings for V8

Repository: https://github.com/eclipsesource/J2V8
Canonical: https://ross.abutalabs.com/products/j2v8
Language: Java
License Family: other
Last push: 2025-11-14T04:52:55+00:00

## Health v2 (maintenance only)
Score: 56/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 52, release rhythm 35, longevity 100
- inputs: {"age_days": 4413, "days_push": 292, "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 2627, forks 387 (observed 2026-08-28T04:07:05.412102+00:00)

## What it is
J2V8 is a set of Java bindings for Google's V8 JavaScript engine, providing a high-performance way to execute JavaScript from Java applications. It was originally built as the JS runtime for Tabris.js and works well on Android and the JVM.

## Use cases
- run javascript from java
- embed a js engine in an android app
- server-side render react components on the jvm
- execute javascript scripts in a java application
- call java methods from javascript
- run node.js on the jvm

## When to choose
- you need a fast, tightly integrated V8 runtime inside a Java or Android application
- you want a statically typed, primitive-first bridge between Java and JavaScript
- you need SSR of JavaScript frameworks from a JVM backend

## When to avoid
- you need a pure-JavaScript engine with no native binaries
- you want a maintained project with active development and a clear license
- you need modern ECMAScript features from a recent V8 version
- you prefer higher-level engines like GraalJS or QuickJS bindings

## Facets
- artifact type: library
- maturity: maintenance
- function: interpreter, sdk
- domain: programming-languages, developer-tools, mobile-development, backend
- platform: jvm, cross-platform
- tags: javascript-engine, v8, java-bindings, js-runtime, jni, android

## Member repositories
- eclipsesource/J2V8 (main) score 56

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:07:05.412102+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 2026-08-30T02:19:44.374619+00:00, confidence not recorded.
  - readme: https://github.com/eclipsesource/J2V8 (fetched 2026-08-28T04:07:05.412102+00:00, sha d5f3f53aab4a)
- Data as of 2026-08-30T08:39:29.467469+00:00.