# chakra-core/ChakraCore

ChakraCore is an open source Javascript engine with a C API.

Repository: https://github.com/chakra-core/ChakraCore
Canonical: https://ross.abutalabs.com/products/chakracore
Language: JavaScript
License: MIT
License Family: permissive
Topics: chakracore, javascript-engine, jsrt, microsoft, vm, javascript, js, runtime, windows, linux, chakra, osx, help-wanted, up-for-grabs, cplusplus-11, cplusplus, mit-license, cpp, hacktoberfest
Last push: 2026-02-19T20:35:46+00:00

## Health v2 (maintenance only)
Score: 53/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 68, release rhythm 8, longevity 100
- inputs: {"age_days": 3893, "days_push": 195, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 9258, forks 1225 (observed 2026-08-28T04:10:29.135391+00:00)

## What it is
ChakraCore is an open-source JavaScript engine with a C API for embedding JavaScript execution into C or C-compatible applications. It was formerly the engine behind Microsoft Edge and now continues as a community project focused on embedded use cases.

## Use cases
- embed a javascript engine in a c++ application
- run javascript inside a native app
- add scripting support to my program
- evaluate js from c code
- host a js runtime in a game or tool

## When to choose
- you need to embed JavaScript execution in a C/C++ project
- you want a lightweight JS runtime with a C API
- you need a JS engine on Windows, Linux, or macOS

## When to avoid
- you need the latest ECMAScript features and active development
- you want a mainstream, well-supported engine like V8 or JavaScriptCore
- you need ARM support on Linux or macOS

## Facets
- artifact type: library
- maturity: maintenance
- function: interpreter, compiler
- domain: programming-languages, developer-tools, parsers
- platform: windows, cpp, c
- tags: javascript-engine, jsrt, embedding, virtual-machine, ecmascript, linux, macos

## Member repositories
- chakra-core/ChakraCore (main) score 53

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:10:29.135391+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 2026-08-29T17:22:39.105192+00:00, confidence not recorded.
  - readme: https://github.com/chakra-core/ChakraCore (fetched 2026-08-28T04:10:29.135391+00:00, sha 31ba13511df2)
- Data as of 2026-08-30T08:39:29.467469+00:00.