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Slim advanced select dropdown

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# Slim Select

**The select dropdown, reimagined.**

A lightweight, dependency-free replacement for the native `<select>` — single and multi-select, search, optgroups,
remote data, modal mode on mobile, and full theming through CSS variables. Drop it into any stack, or use the official
Vue and React wrappers.

## [slimselectjs.com](https://slimselectjs.com)

[![NPM Downloads](https://img.shields.io/npm/dt/slim-select.svg)](https://www.npmjs.com/package/slim-select)
![GitHub Actions Workflow Status](https://img.shields.io/github/actions/workflow/status/brianvoe/slim-select/vitest.yml?logo=vitest&label=unit%20tests)
![Tests](https://img.shields.io/badge/tests-523%20passing-brightgreen)

![](https://raw.githubusercontent.com/brianvoe/slim-select/master/docs/slimselect.gif)

## Documentation

Full docs, live demos, and copy-paste examples: **[slimselectjs.com](https://slimselectjs.com)**

- [Get started](https://slimselectjs.com/get-started)
- [Settings](https://slimselectjs.com/settings)
- [Methods](https://slimselectjs.com/methods)
- [Events](https://slimselectjs.com/events)
- [Styling](https://slimselectjs.com/style)

## Features

**Select, upgraded**

- Single and multi-select with tags, placeholders, and deselect
- Search with highlighting, remote/API search, and user-addable options
- Optgroups with select-all and closable accordion groups
- HTML options, tooltips, min/max selection limits, and disabled options
- Modal mode (`off` | `on` | `mobile`) — centered panel with backdrop; mobile-friendly by default

**Looks like your product**

- Theme entirely with `--ss-*` CSS custom properties — no fighting class specificity
- Import plain CSS or SCSS; inherit styles and classes from the native `<select>`

**Built to ship**

- Zero dependencies
- ~66KB JS (~16KB gzip) · ~12KB CSS (~2KB gzip)
- TypeScript types included
- WCAG 2.1 Level AA accessibility (ARIA, keyboard, screen reader support)
- `prefers-reduced-motion` respected
- 477 unit tests + 46 Playwright E2E tests

**Framework ready**

- Vanilla JS
- [Vue 3](#vue) component with `v-model`
- [React](#react) component with hooks and ref access

## Installation

```bash
npm install slim-select
```

### CDN

```html
<script src="https://unpkg.com/slim-select@latest/dist/slimselect.js"></script>
<link rel="stylesheet" href="https://unpkg.com/slim-select@latest/dist/slimselect.css" />
```

## Quick start

```javascript
import SlimSelect from 'slim-select'
import 'slim-select/styles' // or: import 'slim-select/scss'

new SlimSelect({
  select: '#selectElement'
})
```

```html
<select id="selectElement">
  <option value="value1">Value 1</option>
</select>
```

## Styling

Slim Select is styled with CSS variables. Set them on a wrapper around your select (or on `:root` for a global theme):

```css
.my-form {
  --ss-primary-color: #2563eb;
  --ss-bg-color: #ffffff;
  --ss-font-color: #1e293b;
  --ss-border-color: #e2e8f0;
  --ss-border-radius: 8px;
  --ss-main-height: 44px;
}
```

See the full token list and live themes on the [Style docs](https://slimselectjs.com/style).

## Data

Pass an array of options and optgroups instead of (or in addition to) native `<option>` elements:

```javascript
new SlimSelect({
  select: '#selectElement',

data: [
    { text: 'Value 1', value: 'value1' },
    {
      label: 'Group label',
      options: [
        { text: 'Value 2', value: 'value2' },
        { text: 'Value 3', value: 'value3' }
      ]
    }
  ]
})
```

### Data types

```javascript
// <optgroup>
const optgroup = {
  label: 'label', // Required
  selectAll: false, // Optional — default false
  closable: 'off', // Optional — 'off' | 'open' | 'close'
  options: [] // Required — array of options
}

// <option>
const option = {
  text: 'text', // Required
  value: 'value', // Optional — defaults to text
  html: '<b>Html</b>', // Optional — used for display when set
  selected: false,
  display: true,
  disabled: false,
  mandatory: false,
  placeholder: false,
  class: '',
  style: '',
  data: {} // Plain object for data-* attributes
}
```

## Settings

All fields are optional. Values shown are defaults.

[Full settings documentation](https://slimselectjs.com/settings)

```javascript
new SlimSelect({
  select: '#selectElement',

settings: {
    disabled: false,
    alwaysOpen: false,
    showSearch: true,
    focusSearch: true,
    keepSearch: false,
    ariaLabel: 'Combobox',
    searchPlaceholder: 'Search...',
    searchText: 'No Results',
    searchingText: 'Searching...',
    resultsText: '{count} results available',
    deselectText: 'Clear',
    removeText: 'Remove',
    searchHighlight: false,
    closeOnSelect: true,
    contentLocation: document.body,
    contentPosition: 'absolute', // 'absolute' | 'relative' | 'fixed'
    contentWidth: '', // e.g. '500px', '>500px', '<500px'
    openPosition: 'auto', // 'auto' | 'up' | 'down'
    placeholderText: 'Select Value',
    allowDeselect: false,
    hideSelected: false,
    multiString: false,
    keepOrder: false,
    showOptionTooltips: false,
    minSelected: 0,
    maxSelected: 1000,
    timeoutDelay: 200,
    maxValuesShown: 20,
    maxValuesMessage: '{number} selected',
    addableText: 'Press "Enter" to add {value}',
    modal: 'mobile', // 'off' | 'on' | 'mobile'
    modalTitle: '' // Header above the option list in modal view
  }
})
```

## Events

[Full events documentation](https://slimselectjs.com/events)

```javascript
new SlimSelect({
  select: '#selectElement',

events: {
    // Remote/API search — return a Promise or data array
    // searchValue: current input text
    // selected: currently selected Option[]
    // catalog: baseline list restored when search clears
    search: (
      searchValue: string,
      selected: Option[],
      catalog?: (Option | Optgroup)[]
    ) =>
      Promise<(Partial<Option> | Partial<Optgroup>)[]> |
      (Partial<Option> | Partial<Optgroup>)[],

// Local filter when events.search is not set
    searchFilter: (option: Option, search: string) => boolean,

// User-added options — return the new option or an Error
    addable: (value: string) => Promise<Partial<Option> | string> | Partial<Option> | string | Error,

beforeChange: (newVal: Option[], oldVal: Option[]) => boolean | void,
    afterChange: (newVal: Option[]) => void,
    beforeOpen: () => void,
    afterOpen: () => void,
    // Return false to cancel close. info.source is why close was requested
    // ('select' | 'deselect' | 'outside' | 'toggle' | 'escape' | 'tab' | 'modal' | 'api').
    // info.selectionChanged is true when the selection is changing in this action.
    // info.option is the clicked option when source is 'select' (undefined otherwise).
    beforeClose: (info: CloseInfo) => boolean | void,
    afterClose: () => void,
    error: (err: Error) => void
  }
})
```

## Methods

[Full methods documentation](https://slimselectjs.com/methods)

```javascript
const slim = new SlimSelect({ select: '#selectElement' })

slim.enable()
slim.disable()
slim.getData()
slim.setData(data)
slim.getSelected() // string[]
slim.setSelected(['value1', 'value2'])
slim.addOption(option)
slim.open()
slim.close()
slim.search('searchValue')
slim.destroy()
```

## Vue

Official Vue 3 component with `v-model` and full TypeScript support.

[Vue documentation](https://slimselectjs.com/vue)

```bash
npm install slim-select
```

```vue
<script lang="ts">
import SlimSelect from 'slim-select/vue'
import 'slim-select/styles'

export default {
  components: { SlimSelect },
  data() {
    return {
      selected: 'value2',
      options: [
        { text: 'Value 1', value: 'value1' },
        { text: 'Value 2', value: 'value2' },
        { text: 'Value 3', value: 'value3' }
      ]
    }
  }
}
</script>

<template>
  <SlimSelect v-model="selected" :data="options" />
</template>
```

> **Note:** Pass options via the `:data` prop. Native `<option>` slot children are not supported in the Vue wrapper.

## React

Official React component with hooks and ref access to the underlying instance.

[React documentation](https://slimselectjs.com/react)

```bash
npm install slim-select
```

```tsx
import { useState } from 'react'
import SlimSelect from 'slim-select/react'
import 'slim-select/styles'

function MyComponent() {
  const [selected, setSelected] = useState('value2')
  const options = [
    { text: 'Value 1', value: 'value1' },
    { text: 'Value 2', value: 'value2' },
    { text: 'Value 3', value: 'value3' }
  ]

return <SlimSelect data={options} value={selected} onChange={setSelected} />
}
```

> **Note:** Pass options via the `data` prop. Native `<option>` children are not supported in the React wrapper.

### Ref access

```tsx
import { useRef } from 'react'
import SlimSelect, { SlimSelectRef } from 'slim-select/react'
import 'slim-select/styles'

function MyComponent() {
  const slimRef = useRef<SlimSelectRef>(null)

return (
    <>
      <SlimSelect ref={slimRef} data={options} />
      <button onClick={() => slimRef.current?.slimSelect?.open()}>Open</button>
    </>
  )
}
```

## Support

[![](https://img.shields.io/static/v1?label=Sponsor&message=%E2%9D%A4&logo=GitHub&color=%23fe8e86)](https://github.com/sponsors/brianvoe)

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