Dev tools · alternatives · 2026

24 alternatives to Mustard UI

A CSS framework that actually looks good.

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

1
Tailwind CSS▲420
A utility-first CSS framework for rapid UI development
2017 · tailwindcss.com · its alternatives →
2
Material UI▲247
A CSS Framework that Implements Google's Material Design
2014 · mui.com · its alternatives →
3
Float UI▲415
Open-source UI components & templates
2023 · floatui.com · its alternatives →
4
Preline UI v2.0▲315
Build faster with Preline UI, a free and open-source Tailwind CSS UI component library with Pro blocks, templates, plugins, framework guides, and Figma.
2024 · preline.co · its alternatives →
5
Tailwind CSS v1.0▲279
A utility-first CSS framework for building custom designs.
2019 · tailwindcss.com · its alternatives →
6
bttn.css▲367
Awesome buttons for awesome projects!
2016 · bttn.surge.sh · its alternatives →
7
Subframe▲756
The best way to build UI, fast
2024 · subframe.com · its alternatives →
8
Tailwind UI Templates▲444
Beautiful Next.js templates built by the Tailwind CSS team.
2022 · tailwindcss.com · its alternatives →
9
UI Colors▲302
Tailwind CSS color generator & editing tool
2022 · uicolors.app · its alternatives →
10
CSS-Mint▲118
Lightweight and simple to use UI Kit.
2016 · arunmichaeldsouza.github.io · its alternatives →
11
Clarity Dashboard UI▲313
Build your next dashboard faster than the speed of light
2022 · its alternatives →
12
Open Source TailwindCSS UI Components▲148
Free Tailwind html UI Components - built to create landing pages and websites. Easyfrontend UI components are free and open-source. Copy paste the components to update your existing site or create a new site from it.
2024 · github.com · its alternatives →
13
Tailwind CSS v2.0▲385
Rapidly build modern websites without ever leaving your HTML
2020 · tailwindcss.com · its alternatives →
14
CheapUI▲122
AI-powered UI component generator for web development
2025 · its alternatives →
15
XP.css – Windows XP CSS file and framework for building GUIs▲297
A design system for building faithful recreations of old UIs.
2020 · botoxparty.github.io · its alternatives →
16
98.css▲256
A design system for building faithful recreations of old UIs
2020 · jdan.github.io · its alternatives →
17
LCUI.css – A UI component framework for building LCUI application▲49
A UI component framework for building LCUI application. - lcui-dev/lc-design
2018 · github.com · its alternatives →
18
Picnic.css, a lightweight Bootstrap alternative▲247
I've tried to make it as light as possible. It's only tested with Firefox and Chrome, however I intend to test it in IE down to 9. What would you change? What would you add? Any feedback or pull request is greatly welcome! MIT Licensed
2014 · picnicss.com · its alternatives →
19MB
my boilerplate CSS code for new designs, written in Less.▲108
2011 · mgeraci.github.com · its alternatives →
20
Layer CSS▲152
Lightweight CSS framework to build your own fluid layouts
2015 · layers-css.vercel.app · its alternatives →
21
UI.Colors▲85
Small web app with a bunch UI colors
2014 · its alternatives →
22
Horizon UI Tailwind▲147
Open-source trendy admin template for Tailwind CSS & React
2023 · horizon-ui.com · its alternatives →
23
Razor UI▲114
A cutting edge UI kit for Tailwind CSS
2021 · razorui.com · its alternatives →
24AS
A simple lightweight CSS grid, not a bloated framework▲134
2012 · thisisdallas.github.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 →