Software Alternatives & Startups

Three.js VS TrimCSS

Compare Three.js VS TrimCSS and see what are their differences

Three.js

A JavaScript 3D library which makes WebGL simpler.

Rating
0 reviews
Pricing
Open source
TrimCSS

Scan your website, find the CSS rules your pages never use and download smaller stylesheets. Free for up to 5 pages, no sign up.

Rating
0 reviews
Pricing
Freemium $9 / One-off (Site pass: €9 one-off, one website for 30 days, 200 pages a sca)
Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

Which is more popular?

Based on our record, Three.js seems to be more popular. It has been mentioned 259 times since March 2021.

social mentions
259 vs 0
Javascript UI Libraries popularity
100% vs 0%
alternatives listed
240+ vs 5

Base details

Website, pricing, platforms and company facts side by side.

Three.js
TrimCSS
Website threejs.org trimcss.com
Pricing
Open source
Freemium $9 / One-off (Site pass: €9 one-off, one website for 30 days, 200 pages a sca) Official pricing
Platforms —
Web
Company — 2026
Listed in

About Three.js and TrimCSS

In their own words, as submitted to SaaSHub.

Three.js
TrimCSS

No description of Three.js yet.

TrimCSS removes unused CSS from a whole website, not just one page. Enter your web address and it reads your sitemap and menu links, checks each page against every rule in your stylesheets, and gives you back a smaller file containing only the CSS your site really uses. It is careful about what...

Read more about TrimCSS

Features and specs

What each product offers, as listed by its team.

Three.js 5 features
TrimCSS 6 features
  • Ease of Use
    Three.js simplifies the complex task of 3D rendering with an intuitive API, making it accessible to developers who may not have deep expertise in 3D graphics.
  • Cross-Browser Compatibility
    Three.js is built upon WebGL, ensuring compatibility across modern browsers, including Chrome, Firefox, Safari, and Edge.
  • Comprehensive Documentation
    The library offers extensive documentation, examples, and an active community, which helps in quickly resolving issues and understanding implementation.
  • Integration with HTML and CSS
    Three.js can be easily integrated with HTML and CSS, allowing for the blending of 2D and 3D elements in web applications.
  • Extensive Features
    It supports a wide range of features including cameras, lights, materials, shaders, and post-processing effects, making it highly versatile for various 3D projects.

Possible disadvantages

  • Performance Overhead
    Despite its powerful capabilities, Three.js can have significant performance overhead, especially for complex scenes, which might require optimization.
  • Learning Curve
    While easier than raw WebGL, Three.js still has a learning curve, particularly for those new to 3D graphics, requiring time to become proficient.
  • Limited Built-in Advanced Tools
    Although feature-rich, Three.js lacks some advanced tools out-of-the-box compared to more specialized or industry-standard 3D engines, necessitating custom solutions for certain tasks.
  • Dependency on WebGL
    Three.js relies on WebGL, meaning it cannot be used in environments where WebGL is not supported, which can limit accessibility and compatibility.
  • Frequent Updates
    The library is actively developed, which is generally positive, but frequent updates can mean breaking changes, requiring developers to frequently refactor their code.
  • Remove unused CSS
    Remove unused CSS
  • Whole-site scan
    Whole-site scan
  • CSS minifier
    CSS minifier
  • Safelist
    Safelist
  • Paste CSS mode
    Paste CSS mode
  • No sign-up required
    No sign-up required

Videos

Walkthroughs and reviews on video.

Three.js 2 videos + Add
TrimCSS 0 videos + Add

Getting Started With Three.js

More videos

  • - Ricardo Cabello (Mr doob) - 5 years of three.js

No TrimCSS videos yet. You could help us improve this page by suggesting one.

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
Three.js
TrimCSS
100% 100%
0% 0%
0% 0%
100% 100%
100% 100%
0% 0%
0% 0%
100% 100%

User comments

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Reviews and articles

External articles and on-site reviews we used to compare the two products.

Three.js no reviews yet
TrimCSS no reviews yet
  • Top 20 Javascript Libraries
    hackr.io · Mar 2022

    Cross-browser JS library and API that allows for the creation of beautiful animations, Three.js relies on WebGL rather than conventional browser-plugins. Through its library utilities, developers can include complex...

We have no reviews of TrimCSS yet. Be the first one to post

Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

Three.js 259 mentions
TrimCSS 0 mentions
  • 101 Indian monuments, modelled in the browser
    Nothing in the viewer is a downloaded mesh, and the site has no build step. Each landmark is a module in js/monuments/ that builds the structure in code from three.js primitives (boxes, cylinders, spheres, lathed profiles and extruded... - Source: dev.to / 5 days ago
  • How I built a playable ocarina in the browser with Web Audio and three.js
    Stack is deliberately small: TypeScript, three.js, and the Web Audio API, built with Vite. No framework, no game assets. Below is how the pieces actually work in the code — every claim maps to a file in the repo. - Source: dev.to / 18 days ago
  • Why a static Three.js scene still cooks your phone, and the dirty-flag fix
    So I have a bunch of small games on my site. Ludo, tic-tac-toe, carrom, rock-paper-scissors. Nothing fancy, the kind of thing you'd think runs on a potato. They're built with Three.js, which is the standard library for drawing 3D... - Source: dev.to / 3 months ago

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Tracking TrimCSS since Oct 2026.

Alternatives to Three.js and TrimCSS

When comparing Three.js and TrimCSS, you can also consider the following products.