Three.js
Worth it
Confidence: Medium
Free, open-source, and the default choice if your team writes JavaScript and needs real 3D in the browser.
Comparison
Three.js vs <model-viewer>
Three.js lands on Worth it, and <model-viewer> lands on Depends.
<model-viewer>
Depends
Confidence: Medium
Buy it if you have a developer and want free, self-hosted 3D plus AR on your own site.
| Compare | Three.js | <model-viewer> |
|---|---|---|
| Verdict | Worth it | Depends |
| Best for | Front-end developers building 3D web experiences | Ecommerce 3D product views with AR |
| Who it's not for | Non-programmers wanting 3D without code | No-code teams wanting upload-and-embed |
| Privacy | No known public vulnerabilities found in the sources reviewed.⁸ | No known public vulnerabilities found in the sources reviewed. |
| Support quality | Community forum and GitHub only | Community GitHub support only |
| Public sentiment | Developers hail it as a landmark library for web 3D, while acknowledging the learning curve.⁴ | Third-party reviews of <model-viewer> itself are scarce; most '3D model viewer' review coverage describes other products.15 |
| Biggest gotcha | Free library, but the real cost is developer time learning 3D math⁵ | No support SLA . help comes from GitHub issues and community discussion11 |
Pick Three.js when
- Front-end developers building 3D web experiences
- Product configurator and data-viz teams
- Creative sites needing WebGL or WebGPU
- Academic and research visualizations
When Three.js is not a fit
- Non-programmers wanting 3D without code
- Simple sites that just need one spinning logo
- Teams needing vendor support or SLAs
- Buyers who want a paid product with a support contract
Pick <model-viewer> when
- Ecommerce 3D product views with AR
- Developer-led marketing sites
- Self-hosted model showcasing
- Docs and portfolios with 3D embeds
When <model-viewer> is not a fit
- No-code teams wanting upload-and-embed
- Buyers needing model hosting or analytics
- WordPress owners wanting plug-and-play plugins
- Desktop CAD inspection workflows
Sources
- mrdoob/three.js on GitHubgithub.comofficial
- Three.js official sitethreejs.orgofficial
- Three.js details, reviews, pricingcheckthat.aireview
- r/threejs communityreddit.comreview
- Learning difficulty question, Quoraquora.comreview
news
- 3D optimization case study, 26MB to 560kbechobind.comnews
- Three.js security pagethreejs.orgsecurity
- Three.js for WebGL & WebGPUopenapps.proofficial
- <model-viewer> official site and docsmodelviewer.devofficial
- The <model-viewer> project . GitHubgithub.comofficial
official
- Augmented reality with <model-viewer> . Google developersdevelopers.google.comofficial
- <model-viewer> FAQ (CORS)modelviewer.devofficial
official
security