Is three.js free and open source?

Yes. three.js is free and open source, released under the MIT license. You can view and contribute to the source at https://github.com/mrdoob/three.js.

What language is three.js written in?

three.js is primarily written in JavaScript.

What are open-source alternatives to three.js?

Other open-source developer tools & cli tools on OSSDrop include Oh My Zsh, VS Code, MarkItDown, Go.

three.js

Curated

JavaScript library for creating and rendering 3D graphics in the browser via WebGL.

Visit threejs.org Source

Developer Tools & CLI·MIT·JavaScript·114.4k stars·added 2026-08-09

Curated listing — added by OSSDrop, not the maker.

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Frequently asked

What is three.js?
three.js is an open-source developer tools & cli tool — JavaScript library for creating and rendering 3D graphics in the browser via WebGL. It is written in JavaScript.
Is three.js free and open source?
Yes. three.js is free and open source, released under the MIT license. You can view and contribute to the source at https://github.com/mrdoob/three.js.
What language is three.js written in?
three.js is primarily written in JavaScript.
What are open-source alternatives to three.js?
Other open-source developer tools & cli tools on OSSDrop include Oh My Zsh, VS Code, MarkItDown, Go.

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