---
title: "ui.jln.dev"
description: "Free browser tool generating and browsing hundreds of shadcn/ui theme variable sets with instant copy-paste CSS output."
canonical: "https://vibing.inc/library/ui-jln-dev-vg-0617"
category: "Design Systems & Foundations"
subcategory: "Theming & color"
license: "free"
author: "Julian Benegas / jln.dev"
source: "https://ui.jln.dev"
---

# ui.jln.dev
Free browser tool generating and browsing hundreds of shadcn/ui theme variable sets with instant copy-paste CSS output.
## Facts
- Source: https://ui.jln.dev
- Category: Design Systems & Foundations / Theming & color
- Author: Julian Benegas / jln.dev
- Licence: free
- Tags: shadcn, theming, css-variables, tailwind
## Why it's a gem
Huge pre-generated theme gallery, so you start from a good one instead of zero.
---
Listed in The Vibeary: https://vibing.inc/library/ui-jln-dev-vg-0617 · JSON: https://vibing.inc/api/public/library/gems/ui-jln-dev-vg-0617