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 that uses V8 |
| WasmEdge | High-performance, and extensible WebAssembly runtime |
| txiki.js | Small and powerful JavaScript runtime |
| JerryScript | JavaScript engine for the Internet of Things |
| Window.js | JavaScript runtime for desktop graphics programming |
| Blueboat | Multi-tenant serverless JavaScript runtime |
| lo | Successor project to Just |
| Just | Very small v8 JavaScript runtime |
Read our verdict in the software roundup.
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