Top Related Projects
Radix Primitives is an open-source UI component library for building high-quality, accessible design systems and web apps. Maintained by @workos.
Beautifully designed components that you can copy and paste into your apps. Accessible. Customizable. Open Source.
Style React fast with 100% parity on React Native, an optional UI kit, and optimizing compiler.
⚡️ Simple, Modular & Accessible UI Components for your React Applications
Quick Overview
Melt UI is a headless UI library for Svelte, providing unstyled and fully accessible components. It offers a collection of primitives that developers can use to build custom, reusable UI components with full control over styling and behavior.
Pros
- Highly customizable and flexible, allowing developers to create unique designs
- Fully accessible components, adhering to WAI-ARIA guidelines
- Lightweight and performant, with minimal overhead
- Seamless integration with Svelte projects
Cons
- Requires more initial setup and styling compared to pre-styled component libraries
- Learning curve for developers new to headless UI concepts
- Limited documentation and examples compared to more established libraries
- Smaller community and ecosystem compared to larger UI libraries
Code Examples
- Creating a simple toggle button:
<script>
import { createToggle } from '@melt-ui/svelte';
const { elements, states } = createToggle();
</script>
<button use:elements.root>
{$states.pressed ? 'On' : 'Off'}
</button>
- Implementing a basic dropdown menu:
<script>
import { createDropdownMenu } from '@melt-ui/svelte';
const { elements, states } = createDropdownMenu();
</script>
<div use:elements.root>
<button use:elements.trigger>Menu</button>
{#if $states.open}
<ul use:elements.content>
<li use:elements.item>Item 1</li>
<li use:elements.item>Item 2</li>
<li use:elements.item>Item 3</li>
</ul>
{/if}
</div>
- Creating a simple tooltip:
<script>
import { createTooltip } from '@melt-ui/svelte';
const { elements } = createTooltip();
</script>
<button use:elements.trigger>Hover me</button>
<div use:elements.content>This is a tooltip</div>
Getting Started
To start using Melt UI in your Svelte project, follow these steps:
-
Install the package:
npm install @melt-ui/svelte
-
Import and use the desired component in your Svelte file:
<script> import { createToggle } from '@melt-ui/svelte'; const { elements, states } = createToggle(); </script> <button use:elements.root> {$states.pressed ? 'On' : 'Off'} </button>
-
Style your components as needed using CSS or your preferred styling solution.
Competitor Comparisons
Radix Primitives is an open-source UI component library for building high-quality, accessible design systems and web apps. Maintained by @workos.
Pros of Radix Primitives
- More mature and widely adopted in the React ecosystem
- Extensive documentation and community support
- Offers a broader range of pre-built components
Cons of Radix Primitives
- Limited to React applications
- Steeper learning curve for beginners
- Larger bundle size due to more comprehensive feature set
Code Comparison
Radix Primitives (React):
import * as Dialog from '@radix-ui/react-dialog';
<Dialog.Root>
<Dialog.Trigger>Open</Dialog.Trigger>
<Dialog.Content>
<Dialog.Title>Dialog Title</Dialog.Title>
<Dialog.Description>Dialog content here</Dialog.Description>
</Dialog.Content>
</Dialog.Root>
Melt UI (Svelte):
<script>
import { createDialog } from '@melt-ui/svelte';
const { trigger, content, title, description } = createDialog();
</script>
<button use:trigger>Open</button>
<div use:content>
<h2 use:title>Dialog Title</h2>
<p use:description>Dialog content here</p>
</div>
Summary
Radix Primitives is a well-established library for React applications, offering a wide range of components and extensive documentation. However, it's limited to React and may have a steeper learning curve. Melt UI, on the other hand, is designed for Svelte applications, providing a more lightweight and flexible approach with its action-based API. The choice between the two largely depends on the framework being used and the specific needs of the project.
Beautifully designed components that you can copy and paste into your apps. Accessible. Customizable. Open Source.
Pros of shadcn/ui
- Ready-to-use components with minimal setup
- Highly customizable through Tailwind CSS
- Extensive documentation and examples
Cons of shadcn/ui
- Less flexibility in component structure
- Potential for larger bundle sizes due to Tailwind CSS
Code Comparison
shadcn/ui:
import { Button } from "@/components/ui/button"
export function Example() {
return <Button>Click me</Button>
}
melt-ui:
<script>
import { createButton } from '@melt-ui/svelte'
const { button } = createButton()
</script>
<button use:button>Click me</button>
Key Differences
- shadcn/ui provides pre-built React components, while melt-ui offers Svelte actions for building custom components
- melt-ui focuses on headless UI patterns, giving more control over styling and structure
- shadcn/ui leverages Tailwind CSS for styling, whereas melt-ui allows for any styling approach
Use Cases
- Choose shadcn/ui for rapid development with consistent, pre-styled components
- Opt for melt-ui when building custom, accessible components with full control over markup and styling
Community and Ecosystem
- shadcn/ui has a larger community and more third-party resources
- melt-ui is newer but growing, with a focus on Svelte ecosystem
Style React fast with 100% parity on React Native, an optional UI kit, and optimizing compiler.
Pros of Tamagui
- Cross-platform support for React Native and web
- Optimized for performance with atomic CSS-in-JS
- Extensive theming capabilities and design system tools
Cons of Tamagui
- Steeper learning curve due to its comprehensive feature set
- Larger bundle size compared to Melt UI's lightweight approach
- More complex setup and configuration process
Code Comparison
Tamagui component example:
import { Button } from 'tamagui'
export default () => (
<Button>Press me</Button>
)
Melt UI component example:
<script>
import { createButton } from '@melt-ui/svelte'
const { button } = createButton()
</script>
<button use:button>Press me</button>
Key Differences
- Tamagui is React-based, while Melt UI is Svelte-based
- Tamagui offers a full design system, whereas Melt UI focuses on headless UI components
- Melt UI provides more flexibility in styling, as it doesn't enforce a specific design system
- Tamagui has built-in responsive design features, while Melt UI leaves responsiveness to the developer
Use Cases
- Choose Tamagui for cross-platform React projects with a need for a comprehensive design system
- Opt for Melt UI in Svelte projects requiring lightweight, customizable UI components
⚡️ Simple, Modular & Accessible UI Components for your React Applications
Pros of Chakra UI
- Extensive component library with a wide range of pre-built UI elements
- Strong TypeScript support and comprehensive documentation
- Large and active community, providing extensive resources and third-party extensions
Cons of Chakra UI
- Larger bundle size due to the comprehensive component library
- Steeper learning curve for developers new to the ecosystem
- Less flexibility in customizing component behavior compared to Melt UI's headless approach
Code Comparison
Chakra UI (React):
import { Button } from '@chakra-ui/react'
function MyComponent() {
return <Button colorScheme="blue">Click me</Button>
}
Melt UI (Svelte):
<script>
import { createButton } from '@melt-ui/svelte'
const { button } = createButton()
</script>
<button use:button>Click me</button>
Chakra UI provides a more opinionated and styled approach out of the box, while Melt UI offers a headless solution that allows for more customization. Chakra UI is React-based and has a larger ecosystem, whereas Melt UI is specifically designed for Svelte applications. Melt UI's approach may result in smaller bundle sizes and more flexibility in styling, but requires more manual setup for complex components.
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Melt UI is a set of headless, accessible component builders for Svelte.
About
Melt UI is meant to be used as a base for your own styles and components. It offers:
- Uncoupled builders that can be attached to any element/component
- Typescript and SvelteKit support out-of-the-box
- Strict adherence to WAI-ARIA guidelines
- Easy to use examples and documentation
- A high emphasis on accessibility, extensibility, quality and consistency
Getting started
Run our installer script to get started:
npx @melt-ui/cli@latest init
Import the builders to your code and start using them:
<script>
import { createCollapsible, melt } from '@melt-ui/svelte'
const {
elements: { root, content, trigger },
states: { open }
} = createCollapsible()
</script>
<div use:melt="{$root}">
<button use:melt="{$trigger}">{$open ? 'Close' : 'Open'}</button>
<div use:melt="{$content}">Obi-Wan says: Hello there!</div>
</div>
Contributing
Contributions are welcome and encouraged!
Melt UI is under active development. Currently planned features can be found in the issues tab, alongside bug reports.
We work on this project on a volunteer basis in our free time. If you notice something that hasn't been implemented yet or could be improved, do consider contributing to the project! The goal is to enhance the experience of building with Svelte and improve the ecosystem for everyone.
Check out our Contributing guide to learn more.
Sponsors
Community
Melt UI is an open-source project built by the community for the community. It wouldn't be possible if it wasn't for the work of some amazing people.
Discord
Got any questions? Want to talk to the maintainers?
Our Discord community is a great place to get in touch with us, and we'd love to have you there.
Similar projects
Looking for more? Check out the other component library projects available for Svelte.
Top Related Projects
Radix Primitives is an open-source UI component library for building high-quality, accessible design systems and web apps. Maintained by @workos.
Beautifully designed components that you can copy and paste into your apps. Accessible. Customizable. Open Source.
Style React fast with 100% parity on React Native, an optional UI kit, and optimizing compiler.
⚡️ Simple, Modular & Accessible UI Components for your React Applications
Convert designs to code with AI
Introducing Visual Copilot: A new AI model to turn Figma designs to high quality code using your components.
Try Visual Copilot