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Dev tools · June 7, 2021

PATTTTERNS

Build your FREE UI Library based on real UX-UI patterns.

PATTTTERNS launched on June 7, 2021 with 129 votes, #308 of 3,650 launches that month and more than 90% of that year's launches. The site was still online in September 2026, 5 years on.

Visit patttterns.com ↗PATTTTERNS alternativestop 8% of June 2021

What it does

A free and open catalog of interaction design patterns that's used to document, learn, train on building products. Design patterns are frequently used by professionals in Architecture and Software building https://en.wikipedia.org/wiki/Software_design_pattern

A collection of 400+ real design patterns. Curated manually by and for product makers.

Does a similar job

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  • The Pattern Library2014 · thepatternlibrary.com · ▲307

    Free to use patterns by awesome designers

  • UI Patterns2016 · uipatterns.io · ▲333

    Level up with interactive mobile design patterns

  • UI Sources2018 · screensdesign.com · ▲418

    Curated interaction design patterns from the best apps

  • Talks by UI Patterns2015 · talks.ui-patterns.com · ▲164

    A library of talks by UX experts

  • Once UI 1.5Dec 2025 · once-ui.com · ▲299

    When I started my career and built my first design system, I was beyond excited. It took a lot of iterations, learning and 6 months of work to launch it internally. In the next job, I did it again, then at the following job, again… And no matter which company I worked for, 80% of the design system was the same. I’ve decided to work full-time on the design system I’ve always wanted, and today I’m launching and open-sourcing it. You can use it to build Next.js apps faster, and I’ve designed it in a way that it’s hard to go wrong with it: you can choose any settings, and you’ll end up with a…

  • UI Breakfast Podcast #47: Using Pattern Libraries in Web Design with Laura Elizabeth2017 · uibreakfast.com · ▲56

    How to plan, build, and document pattern libraries

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