head to head · open source
three.js vs cap
three.js has 117,439 GitHub stars, 36,894 forks, 386 open issues and last shipped yesterday. cap has 24,271 stars, 2,234 forks, 339 open issues and last shipped yesterday. three.js leads on adoption by 384% (117,439 vs 24,271 stars). three.js is written in JavaScript under MIT; cap is written in Rust under a custom or non-standard licence. three.js has attracted 31% as many forks as stars, cap 9%. cap 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 | cap | |
|---|---|---|
| GitHub stars | ★ 117K | ★ 24K |
| License | MIT | Custom / other |
| Written in | JavaScript | Rust |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 37K | ⑂ 2.2K |
| 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 cap if
- You want the cap feature set and don't need the biggest community
- You prefer the Custom / other license terms
- Your stack matches Rust
- You evaluated both and cap 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 cap
Cap Beautiful, shareable screen recordings. Open source, fast, and built for teams that want to own their data. Website Download Docs Pricing Discord Cap is the open source alternative to Loom. It gives you fast screen recording, polished local editing, instant share links, comments, transcripts, analytics, team workspaces, custom domains, custom S3 storage, and full self hosting when you need complete control. Use Cap for product demos, bug reports, onboarding, tutorials, design reviews, engineering walkthroughs, async standups, client updates, and any moment where showing the work is faster than scheduling…
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Frequently asked questions
Is three.js or cap more popular?
three.js has 117,439 GitHub stars and cap has 24,271. three.js has the larger community by that measure.
Are three.js and cap free?
Both are open source. three.js is licensed under MIT, and cap has no licence declared in this registry. Both are free to self-host.
What is the difference between three.js and cap?
three.js is written in JavaScript and cap in Rust. 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 cap?
Choose three.js if you want the larger community (117,439 stars) or its MIT licence terms. Choose cap if its feature set, stack or Custom / other licence fits better. Both are self-hostable.