GoogleChromeLabs/jsvu
JavaScript (engine) Version Updater observed · 2026-08-28
Health v2 · maintenance only
75/100
- Activity 95
- Release rhythm 35
- Longevity 100
Flags: no_releases
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.
- gap_med: n/a
- age_days: 3199
- days_rel: n/a
- days_push: 34
- n_releases_24m: 0
Adoption not part of the score
2029 stars · 98 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
jsvu is a CLI tool from GoogleChromeLabs that installs and updates recent versions of multiple JavaScript engines (V8, SpiderMonkey, JavaScriptCore, Hermes, QuickJS-ng, GraalJS, XS) without compiling from source. It runs on macOS, Windows, and Linux and is managed via npm.
Use cases
- install javascript engines without compiling from source
- keep v8 and spidermonkey binaries up to date
- test my code against multiple js engines
- download prebuilt javascriptcore for mac arm
- manage multiple javascript engine versions on one machine
- get a quickjs or hermes binary quickly
When to choose
- you need recent builds of several JS engines for testing or benchmarking
- you want prebuilt binaries instead of building engines from source
- you work on cross-platform JS engine compatibility
When to avoid
- you only need Node.js itself (use nvm/fnm instead)
- you need a specific older engine version or custom build flags
- your platform/architecture is not in the supported matrix
Facets
cli-tool · maturity active
cli package-manager developer-tools deployment developer-tools programming-languages cli windows cross-platform javascript-engines version-manager v8 spidermonkey javascriptcore hermes quickjs graaljs prebuilt-binaries command-line javascript nodejs macos linux
3 sources
- readme: https://github.com/GoogleChromeLabs/jsvu · fetched 2026-08-28 · 6a934a4b59e4
- homepage: https://mths.be/jsvu · fetched 2026-08-29 · 852f8118c682
- registry_npm: https://registry.npmjs.org/jsvu · fetched 2026-08-29 · 848986d9c9bf
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| GoogleChromeLabs/jsvu | main | 75 |
For agents
markdown · JSON · MCP: product_card(name="GoogleChromeLabs/jsvu")
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem