Life & fun · alternatives · 2026

24 alternatives to Modern, modular, extensible CSS button library – knopf.css

Modern, modular, extensible button system designed for both rapid prototyping and production-ready applications.

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Modern, modular, extensible CSS button library – knopf.css launched in 2020; newer entries below may have overtaken it.

1. 1
   knopf.css▲10

   Modern, modular, extensible CSS button library

   2020 · knopf.dev · its alternatives →

2. 2
   bttn.css▲367

   Awesome buttons for awesome projects!

   2016 · bttn.surge.sh · its alternatives →

3. 3
   Stitches▲135

   The modern CSS-in-JS library with near-zero runtime.

   2020 · stitches.dev · its alternatives →

4. 4
   Cs16.css – CSS library based on Counter Strike 1.6 UI▲819

   CSS library based on Counter Strike 1.6 UI.

   2025 · cs16.samke.me · its alternatives →

5. 5
   Buttons Generator▲301

   100+ buttons you can use in your project

   2021 · markodenic.com · its alternatives →

6. 6BA
   Buttons - A CSS button library built with Sass and Compass▲11

   2013 · alexwolfe.github.io · its alternatives →

7. 7
   98.css▲256

   A design system for building faithful recreations of old UIs

   2020 · jdan.github.io · its alternatives →

8. 8
   Beautiful CSS Buttons by CSS Scan▲191

   Curated collection of 83 free beautiful buttons

   2021 · getcssscan.com · its alternatives →

9. 9BC
   Bolt.css – Another classless CSS library▲134

   Bolt.css is a classless css library

   2022 · boltcss.com · its alternatives →

10. 10
    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 →

11. 11
    Layer CSS▲152

    Lightweight CSS framework to build your own fluid layouts

    2015 · layers-css.vercel.app · its alternatives →

12. 12HC
    Hint.css v2.0 – Pure CSS tooltip library▲253

    2016 · kushagragour.in · its alternatives →

13. 13
    Pattern.css – CSS-only library to fill empty background with patterns▲332

    CSS only library to fill empty background with beautiful patterns. - bansal/pattern.css

    2020 · github.com · its alternatives →

14. 14
    Pattern.css▲197

    CSS library to fill empty background with beautiful patterns

    2020 · github.com · its alternatives →

15. 15
    A completely different way to write responsive, vanilla, CSS▲248

    2020 · propjockey.github.io · its alternatives →

16. 16AS
    A simple lightweight CSS grid, not a bloated framework▲134

    2012 · thisisdallas.github.com · its alternatives →

17. 17
    hack.css▲174

    The CSS framework for hackers

    2016 · hackcss.com · its alternatives →

18. 18
    Shorthand CSS▲169

    Feature rich CSS framework for the new decade

    2020 · shorthandcss.com · its alternatives →

19. 19
    Picnic CSS▲131

    A beautiful CSS library to kickstart your projects

    2016 · picnicss.com · its alternatives →

20. 20IC
    I combined Milligram, Skeleton, and Normalize into a single CSS project▲158

    2020 · sscaffold-css.com · its alternatives →

21. 21
    Buttons▲3

    A collection of CSS buttons.

    2017 · labs.loupbrun.ca · its alternatives →

22. 22
    I made a collection of 80+ beautiful CSS buttons (click to copy)▲16

    🎨 Curated collection of 92 free beautiful CSS buttons, ready-to-use for your next projects. Click to copy.

    2021 · getcssscan.com · its alternatives →

23. 23
    System.css▲116

    A design system for building retro Apple UIs

    2022 · github.com · its alternatives →

24. 24
    CSStyle▲112

    Modern approach for crafting beautiful stylesheets.

    2014 · csstyle.io · its alternatives →

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 →