Io is a very small v8 JavaScript runtime.
This is free and open source software.
Key features
- Low-level, minimal JavaScript runtime.
- Cross-platform build instructions provided for Linux, macOS, and Windows.
- Performance-minded dependency approach.
Website: github.com/just-js/lo
Support:
Developer: Andrew Johnston
License: MIT License
lo is written in JavaScript,C and C++. Learn JavaScript with our recommended free books and free tutorials. Learn C with our recommended free books and free tutorials. 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.
Explore our comprehensive directory of recommended free and open source software. Our carefully curated collection spans every major software category.This directory is part of our ongoing series of informative articles for Linux enthusiasts. It features hundreds of detailed reviews, along with open source alternatives to proprietary solutions from major corporations such as Google, Microsoft, Apple, Adobe, IBM, Cisco, Oracle, and Autodesk. You’ll also find interesting projects to try, hardware coverage, free programming books and tutorials, and much more. Know a useful open source Linux program that we haven’t covered yet? Let us know by completing this form. |

