head to head · open source
three.js vs s&box
three.js has 117,439 GitHub stars, 36,894 forks, 386 open issues and last shipped yesterday. s&box has 6,517 stars, 696 forks, 2,406 open issues and last shipped yesterday. three.js leads on adoption by 1,702% (117,439 vs 6,517 stars). three.js is written in JavaScript under MIT; s&box is written in C# under a custom or non-standard licence. three.js has attracted 31% as many forks as stars, s&box 11%. s&box was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| three.js | s&box | |
|---|---|---|
| GitHub stars | ★ 117K | ★ 6.5K |
| License | MIT | Custom / other |
| Written in | JavaScript | C# |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 37K | ⑂ 696 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick three.js if
- You weight community size — 117K stars and counting
- You want the MIT license terms
- Your stack matches JavaScript
- You value the larger contributor base for long-term maintenance
pick s&box if
- You want the s&box feature set and don't need the biggest community
- You prefer the Custom / other license terms
- Your stack matches C#
- You evaluated both and s&box fits your workflow better
About three.js
three.js [![NPM Package][npm]][npm url] [![Build Size][build size]][build size url] [![NPM Downloads][npm downloads]][npmtrends url] [![jsDelivr Downloads][jsdelivr downloads]][jsdelivr url] [![Discord][discord]][discord url] JavaScript 3D library The aim of the project is to create an easy to use, lightweight, cross browser, general purpose 3D library. The current builds only include WebGL and WebGPU renderers but SVG and CSS3D renderers are also available as addons. Examples — Docs — Manual — Wiki — Migrating — Questions — Forum — Discord Usage This code creates a…
read the full three.js overview →
About s&box
[Website] [Getting Started] [Forums] [Documentation] [Contributing] [Website]: [Getting Started]: [Forums]: [Documentation]: [Contributing]: CONTRIBUTING.md s&box s&box is a modern game engine, built on Valve's Source 2 and the latest .NET technology, it provides a modern intuitive editor for creating games. If your goal is to create games using s&box, please start with the getting started guide. This repository is for building the engine from source for those who want to contribute to the development of the engine. Getting the Engine Steam You can download and install the s&box editor directly from Steam…
read the full s&box overview →
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Frequently asked questions
Is three.js or s&box more popular?
three.js has 117,439 GitHub stars and s&box has 6,517. three.js has the larger community by that measure.
Are three.js and s&box free?
Both are open source. three.js is licensed under MIT, and s&box has no licence declared in this registry. Both are free to self-host.
What is the difference between three.js and s&box?
three.js is written in JavaScript and s&box in C#. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, three.js or s&box?
Choose three.js if you want the larger community (117,439 stars) or its MIT licence terms. Choose s&box if its feature set, stack or Custom / other licence fits better. Both are self-hostable.