JerryScript is a lightweight JavaScript engine intended to run on a very constrained devices such as microcontrollers:
- Only few kilobytes of RAM available to the engine (<64 KB RAM)
- Constrained ROM space for the code of the engine (<200 KB ROM)
The engine supports on-device compilation, execution and provides access to peripherals from JavaScript.
This is free and open source software.
Key Features
- Full ECMAScript 5.1 standard compliance.
- 160K binary size when compiled for ARM Thumb-2.
- Heavily optimized for low memory consumption.
- Written in C99 for maximum portability.
- Snapshot support for precompiling JavaScript source code to byte code.
- Mature C API, easy to embed in applications.
Website: jerryscript.net
Support: GitHub Code Repository
Developer: JS Foundation and other contributors
License: Apache License 2.0
JerryScript is written in C. Learn C with our recommended free books and free tutorials.
Related Software
| JavaScript Runtime Environments | |
|---|---|
| Node.js | Hugely popular cross-platform JavaScript run-time environment |
| Bun | Fast JavaScript runtime designed as a drop-in replacement for Node.js. |
| Deno | Simple, modern and secure runtime for JavaScript and TypeScript |
| WasmEdge | High-performance, and extensible WebAssembly runtime |
| workerd | JavaScript and WebAssembly server runtime |
| LLRT | Designed for fast, resource-efficient serverless applications |
| txiki.js | Small and powerful JavaScript runtime |
| JerryScript | JavaScript engine for the Internet of Things |
| GraalJS | ECMAScript-compliant JavaScript engine |
| Window.js | JavaScript runtime for desktop graphics programming |
| Blueboat | Multi-tenant serverless JavaScript runtime |
| lo | Successor project to Just |
| StarlingMonkey | SpiderMonkey-based JavaScript runtime |
| Just | Very small v8 JavaScript runtime |
Read our verdict in the software roundup.
 Explore our carefully curated directory of recommended free and open source software, covering every major software category.The directory forms part of our extensive collection of articles for Linux enthusiasts. It includes hundreds of detailed reviews, together with free and open source alternatives to proprietary software from companies such as Google, Microsoft, Apple, Adobe, IBM, Cisco, Oracle, and Autodesk. LinuxLinks also covers interesting projects worth exploring, Linux-compatible hardware, free programming books and tutorials, and much more. Know a useful free and open source Linux application that we haven’t covered? Tell us about it using our submission form. |
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