# Install jerryscript with Homebrew, Nix

Ultra-lightweight JavaScript engine for the Internet of Things. Version 3.0.0 via Homebrew; verified 2026-08-02. Also installable with nix: nix profile install nixpkgs#jerryscript.

## Install

```sh
sudo av install brew:jerryscript
```

Additional install commands:

### macOS

- Homebrew (100%):

```sh
brew install jerryscript
```

  Evidence: local Homebrew formula metadata

### Linux

- Nix (92%):

```sh
nix profile install nixpkgs#jerryscript
```

  Evidence: nixpkgs package indexes: pkgs/by-name/je/jerryscript/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1

## Package facts

- **Package key:** brew:jerryscript
- **Package manager:** Homebrew
- **Version:** 3.0.0
- **Source summary:** Ultra-lightweight JavaScript engine for the Internet of Things
- **Homepage:** <https://jerryscript.net>
- **Repository:** <https://github.com/jerryscript-project/jerryscript>
- **Last updated:** 2026-08-02T01:26:52+09:00
- **Generated:** 2026-08-03T19:37:03+00:00

## Executables

- jerry (alias)

## Install behavior

- Bottle: not available

## Freshness

- Page generated: 2026-08-03
- Package-manager version: 3.0.0
## Project history and usage

JerryScript is a lightweight JavaScript engine for constrained Internet of Things devices. The project site and README emphasize microcontroller-class memory budgets, C99 portability, on-device compilation and execution, bytecode snapshots, and an embeddable C API.

### Project history

The public GitHub repository dates to 2015. The project presented itself early as a JavaScript engine for devices with less than 64 KB of RAM and less than 200 KB of flash, targeting a niche that mainstream browser and server JavaScript engines did not fit.

JerryScript reached a 1.0 GitHub release in 2016 and continued through the 2.x and 3.x release lines. Later release notes show the project expanding beyond its original ECMAScript 5.1 baseline, while still tracking footprint and conformance as central engineering constraints.

### Adoption history

JerryScript gained ecosystem legitimacy by becoming an OpenJS Foundation hosted project. The OpenJS project listing describes it as a fully featured JavaScript engine for IoT devices, and the JerryScript site links it with IoT.js, a related JavaScript platform for IoT applications.

Package-manager adoption through Homebrew and Nix gives developers a straightforward way to build and experiment with the `jerry` command-line engine on workstations, even though the project's natural deployment target is embedded firmware and constrained devices.

### How it is used

The repository documents a simple source build with `python tools/build.py`, producing the `jerry` executable. Library users embed the engine through its C API, while the snapshot mechanism allows JavaScript source to be precompiled to bytecode before deployment.

### Why package nerds care

JerryScript is interesting to package people because it is not another desktop JavaScript runtime. It packages a tiny embeddable engine whose constraints are closer to firmware than Node.js, making it a useful test case for how package managers expose embedded-runtime tooling to general-purpose developer machines.

### Timeline

- 2015: Public GitHub repository created for jerryscript-project/jerryscript.
- 2016: JerryScript 1.0 released on GitHub.
- 2019: JerryScript 2.0 released on GitHub.
- 2024: JerryScript 3.0.0 release notes report broader ECMAScript feature coverage.

### Related projects

- JerryScript is related to IoT.js through the project site's Powering IoT.js link and to the OpenJS Foundation project family through OpenJS hosting.

### Sources

- <https://api.github.com/repos/jerryscript-project/jerryscript>
- <https://github.com/jerryscript-project/jerryscript>
- <https://github.com/jerryscript-project/jerryscript/releases>
- <https://jerryscript.net/>
- <https://openjsf.org/projects>


## Security Notes

narrow executable package without higher-risk signals.

- **Geiger risk:** green / low
- narrow executable package without higher-risk signals

## Other Package-Manager Records

- Nix - jerryscript: normalized package name match | nixpkgs package indexes: pkgs/by-name/je/jerryscript/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1


## Combined YAML source

View the package source record on GitHub. [combined/jerryscript.yml](https://github.com/mxcl/pkgdb/blob/main/combined/jerryscript.yml)


## Sources

- pkg.so package database
- Geiger risk classifier
- curated package history
- pkgdb category and tag curation
- external package-manager database matches
- cross-ecosystem install command graph