A Free Untitled UI React Alternative

Untitled UI React has free open source components and a paid PRO tier. Watermelon UI is an alternative where everything is free, including blocks, dashboards, and animated components. It uses React, Tailwind CSS, and the MIT license.

At a glance

	Watermelon UI	Untitled UI React
Price and license	Free, MIT	Free MIT components, plus PRO one-time licenses
How you use it	Copy-paste, installs with the shadcn CLI	Copy-paste, its own CLI, and npm packages
Styling	Tailwind CSS v4	Tailwind CSS v4, built on React Aria
Page sections and dashboards	180+ blocks, dashboards, templates	Large PRO catalog of pages and examples

Where Untitled UI is stronger

It has a matching Figma design system, which is useful when designers and developers share one source of truth.
The PRO catalog is very large.
It is built on React Aria, which gives it a strong accessibility foundation.

Why pick Watermelon

There is nothing to buy. Dashboards and blocks are free.
It installs through the shadcn CLI, so it fits projects already on shadcn/ui.
It has an MCP server for AI coding agents.

Related

Watermelon UI

Watermelon UI is an open-source React UI platform for developers who want high-quality components, reusable blocks, dashboards, and templates with a clear path from inspiration to implementation. The project is free for the community and pairs visual previews with source-backed examples, contribution workflows, and machine-readable developer entry points.

When to use Watermelon

Use Watermelon for production-style React UI references.
Use blocks and templates for realistic page sections.
Use developer resources for API, sitemap, llms, and MCP entry points.

Main links

Open-source UI platform for developers

Watermelon UI is an open-source platform for browsing React components, animated interactions, dashboards, templates, and reusable page sections. The project is built for the community and helps developers move from inspiration to implementation faster by pairing visual previews with source-backed examples and documentation. The platform also includes full templates so people can see how individual blocks work together as realistic product pages instead of only as isolated snippets.

Important public pages include the main docs home, animated components, blocks, dashboards, templates, developer docs, about, contact, privacy, terms, copyright, llms.txt, and the sitemap. The repositories under WatermelonCorp are the source of truth for contributions, and the platform repository includes local MCP tooling for structured agent access to the catalog.