Dev tools · alternatives · 2026

24 alternatives to WhatCSS?

What CSS is your site actually using?

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. WhatCSS? launched in 2018; newer entries below may have overtaken it.

1
Water.css – A just-add-css collection of styles to make websites nicer▲501
A drop-in collection of CSS styles to make simple websites just a little nicer - kognise/water.css
2019 · github.com · its alternatives →
2
A visual guide to the most popular CSS properties▲1,117
CSS Reference is a free visual guide to CSS. It features the most popular properties, and explains them with illustrated and animated examples.
2016 · cssreference.io · its alternatives →
3
Web Gradients▲906
Curated collection of 180 free fresh background gradients 🚀
2017 · webgradients.com · its alternatives →
4
CSS Loaders▲114
Easy to use 300 css loaders with source code copier
2021 · cssloaders.github.io · its alternatives →
5
Pattern.css▲197
CSS library to fill empty background with beautiful patterns
2020 · github.com · its alternatives →
6CC
Chartss.css – accessible HTML/CSS charts with markdown support▲265
2020 · rbitr.github.io · its alternatives →
7UC
USA.css – units set in inches, 1776 bytes▲457
2020 · bennettfeely.com · its alternatives →
8WC
What CSS does your site actually need at launch?▲20
2018 · whatcss.info · its alternatives →
9MT
Min, the world's fastest CSS framework▲52
2016 · mincss.com · its alternatives →
10
Drop-In CSS Generator▲87
Generate custom style sheets for simple websites
2023 · dropincss.com · its alternatives →
11
Water.css▲186
Make your tiny website just a little nicer
2019 · github.com · its alternatives →
12
Basic.css – Classless CSS Starter File▲153
Basic.css - Classless CSS Starter File. Contribute to vladocar/Basic.css development by creating an account on GitHub.
2020 · github.com · its alternatives →
13
CSS Stats▲149
Enter a URL and get statistics for a site's CSS
2014 · cssstats.com · its alternatives →
14
Webstudio Variables▲214
Build and reuse expertly crafted Design Systems
2024 · webstudio.is · its alternatives →
15
htmlcss.tools▲130
Your ultimate HTML & CSS code generator
2023 · htmlcss.tools · its alternatives →
16
DropCSS – A simple, thorough and fast unused-CSS cleaner▲134
An exceptionally fast, thorough and tiny unused-CSS cleaner - leeoniya/dropcss
2019 · github.com · its alternatives →
17M2
My 24-hour project, instacss.com▲90
http://instacss.com (in case DNS update hasn't propagated: http://morning-warrior-3377.herokuapp.com/) Last night I was annoyed at how slow (and web 1.0-ish) most CSS reference sites seem to be, so I created this. It's basically a scrape of the CSS reference on w3schools, but with client side searching. Feedback is most welcome! some of the tech involved: node, requirejs, backbone, mongodb the code: http://github.com/rgarcia/instacss
2011 · instacss.com · its alternatives →
18
A simple, plain, minimal, classless CSS for simple, plain HTML pages▲128
A simple, minimal, classless stylesheet for simple HTML pages - susam/spcss
2020 · github.com · its alternatives →
19
CSS Next▲87
Use tomorrow’s CSS syntax, today.
2015 · cssnext.io · its alternatives →
20
CSS-Mint▲118
Lightweight and simple to use UI Kit.
2016 · arunmichaeldsouza.github.io · its alternatives →
21MB
my boilerplate CSS code for new designs, written in Less.▲108
2011 · mgeraci.github.com · its alternatives →
22
Smaller▲85
Make your websites load faster
2018 · its alternatives →
23
MetalliCSS▲64
Versatile metallic finish for your CSS
2022 · metallicss.com · its alternatives →
24
CSS Size Analyzer▲98
Identify large CSS rules and selectors
2023 · debugbear.com · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →