diff --git a/ui/app/components/Popover.vue b/ui/app/components/Popover.vue
new file mode 100644
index 00000000..0ad176f4
--- /dev/null
+++ b/ui/app/components/Popover.vue
@@ -0,0 +1,350 @@
+<template>
+  <div class="popover-wrapper" ref="triggerElm" :tabindex="triggerTabIndex" @mouseenter="handleHoverEnter"
+    @mouseleave="handleHoverLeave" @focusin="handleFocusIn" @focusout="handleFocusOut" @click="handleClick">
+    <div class="popover-trigger">
+      <slot name="trigger">
+        <button type="button" class="button is-small is-rounded" aria-label="More information">
+          <span class="icon is-small">
+            <i class="fas fa-info-circle" aria-hidden="true" />
+          </span>
+        </button>
+      </slot>
+    </div>
+
+    <Teleport to="body">
+      <div v-if="isOpen" class="popover-portal" ref="portal">
+        <div ref="popover" class="popover-card box" :class="placementClass" role="tooltip" :style="portalStyle"
+          @mouseenter="handleHoverEnter" @mouseleave="handleHoverLeave">
+          <header v-if="hasTitleContent" class="popover-title mb-2">
+            <slot name="title">
+              <p class="title is-6 mb-1">{{ title }}</p>
+            </slot>
+          </header>
+
+          <section v-if="hasBodyContent" class="popover-body">
+            <slot>
+              <p class="is-size-7 mb-0">{{ description }}</p>
+            </slot>
+          </section>
+        </div>
+      </div>
+    </Teleport>
+  </div>
+</template>
+
+<script setup lang="ts">
+import type { PopoverProps } from '~/types/popover'
+import { computed, nextTick, onBeforeUnmount, onMounted, ref, useSlots, watch, useTemplateRef } from 'vue'
+
+const emit = defineEmits<{ (event: 'shown' | 'hidden'): void }>()
+
+const props = withDefaults(defineProps<PopoverProps>(), {
+  placement: 'top',
+  trigger: 'hover',
+  offset: 10,
+  disabled: false,
+  closeOnClickOutside: true,
+  title: '',
+  description: '',
+  minWidth: 220,
+  maxWidth: 340,
+  maxHeight: 360,
+  showDelay: 0
+})
+
+const slots = useSlots()
+const isOpen = ref(false)
+const triggerRef = useTemplateRef<HTMLElement>('triggerElm')
+const popover = useTemplateRef<HTMLDivElement>('popover')
+const portalStyle = ref<Record<string, string>>({})
+const hoverTimeout = ref<number | null>(null)
+const openTimeout = ref<number | null>(null)
+
+const placementClass = computed(() => `is-${props.placement}`)
+const triggerTabIndex = computed(() => props.trigger === 'hover' ? -1 : 0)
+
+const hasTitleContent = computed(() => Boolean(props.title) || Boolean(slots.title))
+const hasBodyContent = computed(() => Boolean(props.description) || Boolean(slots.default))
+
+const clearHoverTimeout = () => {
+  if (null !== hoverTimeout.value) {
+    window.clearTimeout(hoverTimeout.value)
+    hoverTimeout.value = null
+  }
+}
+
+const clearOpenTimeout = () => {
+  if (null !== openTimeout.value) {
+    window.clearTimeout(openTimeout.value)
+    openTimeout.value = null
+  }
+}
+
+const scheduleClose = () => {
+  clearHoverTimeout()
+  clearOpenTimeout()
+  hoverTimeout.value = window.setTimeout(() => {
+    isOpen.value = false
+  }, 120)
+}
+
+const openPopoverImmediate = async () => {
+  if (props.disabled || isOpen.value) {
+    return
+  }
+
+  isOpen.value = true
+  await nextTick()
+  updatePosition()
+}
+
+const openPopover = () => {
+  clearOpenTimeout()
+  if (props.showDelay && 0 < props.showDelay) {
+    openTimeout.value = window.setTimeout(() => {
+      openTimeout.value = null
+      void openPopoverImmediate()
+    }, props.showDelay)
+    return
+  }
+
+  void openPopoverImmediate()
+}
+
+const closePopover = () => {
+  if (!isOpen.value) {
+    return
+  }
+
+  isOpen.value = false
+}
+
+const togglePopover = async () => {
+  if (isOpen.value) {
+    closePopover()
+    return
+  }
+
+  openPopover()
+}
+
+const handleHoverEnter = () => {
+  if ('hover' !== props.trigger || props.disabled) {
+    return
+  }
+
+  clearHoverTimeout()
+  openPopover()
+}
+
+const handleHoverLeave = () => {
+  if ('hover' !== props.trigger) {
+    return
+  }
+
+  clearOpenTimeout()
+  scheduleClose()
+}
+
+const handleFocusIn = () => {
+  if ('focus' !== props.trigger || props.disabled) {
+    return
+  }
+
+  openPopover()
+}
+
+const handleFocusOut = () => {
+  if ('focus' !== props.trigger) {
+    return
+  }
+
+  clearOpenTimeout()
+  scheduleClose()
+}
+
+const handleClick = (event: MouseEvent) => {
+  if ('click' !== props.trigger || props.disabled) {
+    return
+  }
+
+  event.stopPropagation()
+  void togglePopover()
+}
+
+const handleDocumentClick = (event: MouseEvent) => {
+  if (!props.closeOnClickOutside || 'click' !== props.trigger) {
+    return
+  }
+
+  const target = event.target as Node | null
+  const isInsideTrigger = Boolean(triggerRef.value && triggerRef.value.contains(target))
+  const isInsidePopover = Boolean(popover.value && popover.value.contains(target))
+
+  if (!isInsideTrigger && !isInsidePopover) {
+    clearOpenTimeout()
+    closePopover()
+  }
+}
+
+const handleEscape = (event: KeyboardEvent) => {
+  if ('Escape' === event.key && isOpen.value) {
+    closePopover()
+  }
+}
+
+const updatePosition = () => {
+  if (!triggerRef.value || !popover.value) {
+    return
+  }
+
+  popover.value.style.minWidth = `${props.minWidth}px`
+  popover.value.style.maxWidth = `${props.maxWidth}px`
+  popover.value.style.maxHeight = `${props.maxHeight}px`
+  popover.value.style.overflowY = 'auto'
+
+  const triggerRect = triggerRef.value.getBoundingClientRect()
+  const popoverRect = popover.value.getBoundingClientRect()
+  const offset = props.offset
+
+  let top = triggerRect.bottom + offset
+  let left = triggerRect.left + (triggerRect.width - popoverRect.width) / 2
+
+  if ('top' == props.placement) {
+    top = triggerRect.top - popoverRect.height - offset
+  } else if ('left' == props.placement) {
+    top = triggerRect.top + (triggerRect.height - popoverRect.height) / 2
+    left = triggerRect.left - popoverRect.width - offset
+  } else if ('right' == props.placement) {
+    top = triggerRect.top + (triggerRect.height - popoverRect.height) / 2
+    left = triggerRect.right + offset
+  }
+
+  const clamp = (value: number, min: number, max: number) => Math.min(Math.max(value, min), max)
+  const viewportWidth = window.innerWidth
+  const viewportHeight = window.innerHeight
+  const maxLeft = viewportWidth - popoverRect.width - 8
+  const maxTop = viewportHeight - popoverRect.height - 8
+
+  const clampedTop = clamp(Math.round(top), 8, maxTop)
+  const clampedLeft = clamp(Math.round(left), 8, maxLeft)
+
+  portalStyle.value = {
+    position: 'fixed',
+    top: `${clampedTop}px`,
+    left: `${clampedLeft}px`,
+    minWidth: `${props.minWidth}px`,
+    maxWidth: `${props.maxWidth}px`,
+    maxHeight: `${props.maxHeight}px`,
+    overflowY: 'auto'
+  }
+}
+
+watch(isOpen, async (value) => {
+  if (value) {
+    await nextTick()
+    updatePosition()
+    await nextTick()
+    emit('shown')
+    return
+  }
+
+  emit('hidden')
+})
+
+onMounted(() => {
+  document.addEventListener('click', handleDocumentClick, true)
+  document.addEventListener('keydown', handleEscape)
+  window.addEventListener('resize', updatePosition)
+  window.addEventListener('scroll', updatePosition, true)
+})
+
+onBeforeUnmount(() => {
+  document.removeEventListener('click', handleDocumentClick, true)
+  document.removeEventListener('keydown', handleEscape)
+  window.removeEventListener('resize', updatePosition)
+  window.removeEventListener('scroll', updatePosition, true)
+  clearHoverTimeout()
+  clearOpenTimeout()
+})
+</script>
+
+<style>
+.popover-wrapper {
+  position: relative;
+  display: inline-flex;
+  max-width: 100%;
+  min-width: 0;
+}
+
+.popover-trigger {
+  display: inline-flex;
+  align-items: center;
+  max-width: 100%;
+  min-width: 0;
+}
+
+.popover-trigger > * {
+  max-width: 100%;
+  min-width: 0;
+}
+
+.popover-portal {
+  position: fixed;
+  z-index: 1050;
+  inset: 0;
+  pointer-events: none;
+}
+
+.popover-card {
+  position: fixed;
+  background-color: var(--bulma-scheme-main, #fff);
+  color: var(--bulma-text, #363636);
+  border: 1px solid var(--bulma-border, rgba(0, 0, 0, 0.08));
+  box-shadow: var(--bulma-shadow, 0 0.5em 1em -0.125em rgba(10, 10, 10, 0.1), 0 0px 0 1px rgba(10, 10, 10, 0.02));
+  border-radius: var(--bulma-radius-large, 0.5rem);
+  pointer-events: auto;
+  padding: 0.9rem 1rem;
+  overflow-wrap: anywhere;
+  word-break: break-word;
+}
+
+.popover-title {
+  color: var(--bulma-text-strong, #1f1f1f);
+}
+
+.popover-card::after {
+  content: '';
+  position: absolute;
+  width: 12px;
+  height: 12px;
+  background: inherit;
+  border-left: inherit;
+  border-top: inherit;
+  transform: rotate(45deg);
+}
+
+.popover-card.is-top::after {
+  bottom: -6px;
+  left: 50%;
+  transform: translateX(-50%) rotate(45deg);
+}
+
+.popover-card.is-bottom::after {
+  top: -6px;
+  left: 50%;
+  transform: translateX(-50%) rotate(45deg);
+}
+
+.popover-card.is-left::after {
+  right: -6px;
+  top: 50%;
+  transform: translateY(-50%) rotate(45deg);
+}
+
+.popover-card.is-right::after {
+  left: -6px;
+  top: 50%;
+  transform: translateY(-50%) rotate(45deg);
+}
+</style>
diff --git a/ui/app/components/SettingsPanel.vue b/ui/app/components/SettingsPanel.vue
index a792ac32..8c4ced72 100644
--- a/ui/app/components/SettingsPanel.vue
+++ b/ui/app/components/SettingsPanel.vue
@@ -140,6 +140,19 @@
               Choose the aspect ratio for thumbnail display.
             </p>
           </div>
+          <div class="field">
+            <label class="label">Popover</label>
+            <div class="control">
+              <input id="show_popover" type="checkbox" class="switch is-success" v-model="show_popover">
+              <label for="show_popover" class="is-unselectable">
+                {{ show_popover ? 'Yes' : 'No' }}
+              </label>
+            </div>
+            <p class="help">
+              <span class="icon"><i class="fa-solid fa-info-circle" /></span>
+              Show additional information over certain elements.
+            </p>
+          </div>
         </div>
 
         <div class="box">
@@ -244,6 +257,7 @@ const toast_position = useStorage<POSITION>('toast_position', POSITION.TOP_RIGHT
 const toast_dismiss_on_click = useStorage<boolean>('toast_dismiss_on_click', true)
 const toast_target = useStorage<notificationTarget>('toast_target', 'toast')
 const show_thumbnail = useStorage<boolean>('show_thumbnail', true)
+const show_popover = useStorage<boolean>('show_popover', true)
 const thumbnail_ratio = useStorage<'is-16by9' | 'is-3by1'>('thumbnail_ratio', 'is-3by1')
 const separator = useStorage<string>('url_separator', separators[0]?.value ?? ',')
 const simpleMode = useStorage<boolean>('simple_mode', config.app.simple_mode || false)
diff --git a/ui/app/types/popover.d.ts b/ui/app/types/popover.d.ts
new file mode 100644
index 00000000..fe9c28fb
--- /dev/null
+++ b/ui/app/types/popover.d.ts
@@ -0,0 +1,16 @@
+export type PopoverPlacement = 'top' | 'bottom' | 'left' | 'right'
+export type PopoverTrigger = 'hover' | 'click' | 'focus'
+
+export interface PopoverProps {
+  title?: string
+  description?: string
+  placement?: PopoverPlacement
+  trigger?: PopoverTrigger
+  offset?: number
+  disabled?: boolean
+  closeOnClickOutside?: boolean
+  minWidth?: number
+  maxWidth?: number
+  maxHeight?: number
+  showDelay?: number
+}