Virtual Scroller Kit

Virtual list, table, grid, tree, and select for Vue 3. Dynamic row heights measured by ResizeObserver, grouping with animated expand/collapse, sticky headers, infinite scroll, keyboard navigation, drag-to-reorder, RTL support, and full SSR support — all with a single peer dependency (Vue 3).

Features

• Dynamic row heights — ResizeObserver measures each row after render; position manager updates in O(log n)
• VirtualList — flat list, external scroll container, page-mode (window scroll), DOM recycling pool, scroll restoration, opt-in horizontal layout
• GroupedVirtualList — collapsible sections with smooth expand/collapse CSS animation, opt-in sticky group-header overlay
• VirtualTable — native <table> with spacer-row virtual scroll, sticky header, fixed left/right columns, single and multi-column sort, drag-to-resize and drag-to-reorder columns, column show/hide, column virtualization, pinned top/bottom rows, built-in lazy loading
• VirtualGrid — fixed-height cells in a responsive auto-column or fixed-column grid, or opt-in per-row dynamic height
• VirtualTree — hierarchical expand/collapse with lazy child loading, configurable indent
• InfiniteLoader — trigger onLoadMore near the bottom, top, or both ends; scroll-position preservation when prepending
• VirtualSelect — virtualized dropdown with client-side or async/remote search (debounced, with a loading slot) and keyboard navigation
• VirtualScrollbar — themable custom scrollbar overlay that syncs with any of the components above (or any scrollable element)
• Smooth programmatic scrolling — scrollTo/scrollToOffset accept { behavior: 'smooth' }, using the browser's native smooth-scroll
• Motion blur — opt-in motionBlur prop applies a velocity-scaled CSS blur while scrolling fast, clearing once scrolling settles
• Anchor-compensated reflow — when a row above the viewport is measured to a different height, scroll position is adjusted by the same delta so visible content never jumps
• RTL support — CSS logical properties throughout, plus scrollLeft normalization for column virtualization, horizontal VirtualList, and the scrollbar
• useVirtualScroll — raw composable for custom containers; returns visibleRange, totalHeight, scrollTo; supports a horizontal axis
• useVirtualKeyboardNav — arrow keys, Home/End, PageUp/PageDown, Enter/Space; plugs into any virtual list
• useDraggableList — pointer-event drag-to-reorder with animated gap, ghost element, auto-scroll, disabled-item support
• useRowSelection — dataset-agnostic click/Shift-click row selection (single or multi), pairs with VirtualList or VirtualTable
• useVisibilityTracker — per-key enter/leave-viewport events backed by a real IntersectionObserver
• PositionManager — segment tree (O(log n) updates and prefix-sum queries) exposed for advanced use
• autoColWidths — estimates column widths from a data sample via Canvas measureText; SSR-safe fallback
• SSR-safe — first N rows rendered on the server, hydration without layout shift
• Zero external dependencies — only Vue 3 as peer dep
• Tree-shakeable ESM + CJS dual build

When you'd reach for this

A plain v-for creates one DOM node per array item, so the difference between 50 rows and 50,000 becomes the difference between "just works" and "the tab hangs the browser" — vue-virtual-scroller-kit keeps only what's actually visible in the DOM.

• A data table grows faster than the screen can show it — Thousands of rows, multi-column sorting, pinned rows, and infinite loading as you scroll — only the visible slice ever gets rendered, not the whole table at once.
• A long list is split into collapsible sections — Product categories, calendar days, notification groups — both the groups and their contents stay virtualized, and the current section's header stays in view as you scroll through it.
• Items need to be reordered by dragging — A playlist, a kanban column, a prioritized task list — items can be dragged and reordered with animated neighbor offsets and auto-scroll, even when only a fraction of the whole list is on screen.
• A dropdown searches a huge reference list — A list of countries, tickers, or users running into the thousands — the dropdown itself stays fast through virtualization, and search with on-demand loading replaces rendering every option at once.

Installation

Requires Vue 3.3+. No other runtime dependencies — the package has zero dependencies of its own.

npm install vue-virtual-scroller-kit

Import the stylesheet once, anywhere in your app entry — it styles things the inline :style bindings don't cover (table column resize/pin, tree toggle buttons, the select dropdown, the custom scrollbar thumb, and skeleton loading states):

import 'vue-virtual-scroller-kit/style.css'

Peer dependency:

npm install vue@>=3.3

Quick start

<script setup lang="ts">
import { VirtualList } from 'vue-virtual-scroller-kit'

interface Row {
  id: number
  text: string
}

const items: Row[] = Array.from({ length: 100_000 }, (_, i) => ({
  id: i,
  text: `Row ${i + 1}`,
}))
</script>

<template>
  <VirtualList :items="items" :estimated-item-size="48" style="height: 600px">
    <template #default="{ item, index }">
      <div style="padding: 12px 16px; border-bottom: 1px solid #eee">
        {{ index + 1 }}. {{ item.text }}
      </div>
    </template>
  </VirtualList>
</template>

More examples

Groups with sticky headers and collapsing

GroupedVirtualList virtualizes a list inside collapsible sections — the current group's header stays pinned at the top, and toggle() expands or collapses any group programmatically.

<script setup lang="ts">
import { ref } from 'vue'
import { GroupedVirtualList } from 'vue-virtual-scroller-kit'
import type { GroupDef, GroupedVirtualListExpose } from 'vue-virtual-scroller-kit'

interface Contact {
  id: number
  name: string
  email: string
}

const groups = ref<GroupDef<Contact>[]>([
  {
    key: 'a',
    label: 'A',
    items: [
      { id: 1, name: 'Alice', email: '[email protected]' },
      { id: 2, name: 'Aaron', email: '[email protected]' },
    ],
  },
  {
    key: 'b',
    label: 'B',
    items: [{ id: 3, name: 'Bob', email: '[email protected]' }],
    collapsed: true,
  },
])

const listRef = ref<GroupedVirtualListExpose | null>(null)
</script>

<template>
  <GroupedVirtualList
    ref="listRef"
    :groups="groups"
    :estimated-item-size="56"
    sticky-group-headers
    style="height: 500px"
  >
    <template #group-header="{ group, toggle, isCollapsed }">
      <div class="group-header" @click="toggle">
        {{ isCollapsed ? '▶' : '▼' }} {{ group.label }}
        <span>({{ group.items.length }})</span>
      </div>
    </template>

    <template #default="{ item }">
      <div class="contact-row">
        <strong>{{ item.name }}</strong>
        <span>{{ item.email }}</span>
      </div>
    </template>
  </GroupedVirtualList>
</template>

Drag-to-reorder without a single external library

useDraggableList tracks the ghost element under the cursor, animates neighboring rows out of the way, and auto-scrolls the container near its edges — you just spread getItemProps across the markup.

<script setup lang="ts">
import { ref } from 'vue'
import { useDraggableList } from 'vue-virtual-scroller-kit'

interface Card {
  id: number
  label: string
}

const cards = ref<Card[]>(Array.from({ length: 50 }, (_, i) => ({ id: i, label: `Card ${i + 1}` })))
const listRef = ref<HTMLElement | null>(null)

const { isDragging, dragIndex, ghostStyle, getItemStyle, getItemProps } = useDraggableList({
  items: cards,
  scrollContainer: listRef,
  onReorder: (newItems) => {
    cards.value = newItems
  },
})
</script>

<template>
  <div ref="listRef" style="display: flex; flex-direction: column; gap: 6px; overflow-y: auto; height: 500px">
    <div
      v-for="(card, index) in cards"
      :key="card.id"
      v-bind="getItemProps(index)"
      :style="getItemStyle(index)"
      class="card"
    >
      ⣿ {{ card.label }}
    </div>
  </div>

  <Teleport to="body">
    <div v-if="isDragging && dragIndex >= 0" class="card card--ghost" :style="ghostStyle">
      ⣿ {{ cards[dragIndex]?.label }}
    </div>
  </Teleport>
</template>

Documentation & links

• 📖 Full documentation: npm.vuecraft.ru/en/packages/vue-virtual-scroller-kit
• 🌐 VueCraft: vuecraft.ru/en
• 👤 Author: macrulez.ru/en
• 💻 GitHub: macrulezru/vue-virtual-scroller-kit
• 📦 NPM: vue-virtual-scroller-kit
• 🐛 Issues: github.com/macrulezru/vue-virtual-scroller-kit/issues

License

MIT

💖 Support the project

Open source takes time and effort. If this library saves you time or brings value, consider supporting further development.

Thank you for being part of this journey. ❤️