diff --git a/src/components/conversation/conversation.js b/src/components/conversation/conversation.js
index 85e6d8ad..c6459edc 100644
--- a/src/components/conversation/conversation.js
+++ b/src/components/conversation/conversation.js
@@ -320,7 +320,8 @@ const conversation = {
             expandingSubject: false,
             showingLongSubject: false,
             isReplying: false,
-            mediaPlaying: []
+            mediaPlaying: [],
+            currentLanguage: undefined
           }
 
           if (this.statusContentPropertiesObject[id]) {
diff --git a/src/components/conversation/conversation.vue b/src/components/conversation/conversation.vue
index 7577129e..18f7e4c3 100644
--- a/src/components/conversation/conversation.vue
+++ b/src/components/conversation/conversation.vue
@@ -94,11 +94,13 @@
               :controlled-showing-long-subject="statusContentProperties[status.id].showingLongSubject"
               :controlled-replying="statusContentProperties[status.id].replying"
               :controlled-media-playing="statusContentProperties[status.id].mediaPlaying"
+              :controlled-current-language="statusContentProperties[status.id].currentLanguage"
               :controlled-toggle-showing-tall="() => toggleStatusContentProperty(status.id, 'showingTall')"
               :controlled-toggle-expanding-subject="() => toggleStatusContentProperty(status.id, 'expandingSubject')"
               :controlled-toggle-showing-long-subject="() => toggleStatusContentProperty(status.id, 'showingLongSubject')"
               :controlled-toggle-replying="() => toggleStatusContentProperty(status.id, 'replying')"
               :controlled-set-media-playing="(newVal) => toggleStatusContentProperty(status.id, 'mediaPlaying', newVal)"
+              :controlled-set-current-language="(newVal) => setStatusContentProperty(status.id, 'currentLanguage', newVal)"
 
               @goto="setHighlight"
               @toggleExpanded="toggleExpanded"
diff --git a/src/components/status/status.js b/src/components/status/status.js
index 9a9bca7a..e2717fb8 100644
--- a/src/components/status/status.js
+++ b/src/components/status/status.js
@@ -19,6 +19,7 @@ import MentionLink from 'src/components/mention_link/mention_link.vue'
 import generateProfileLink from 'src/services/user_profile_link_generator/user_profile_link_generator'
 import { highlightClass, highlightStyle } from '../../services/user_highlighter/user_highlighter.js'
 import { muteWordHits } from '../../services/status_parser/status_parser.js'
+import { controlledOrUncontrolledGetters, controlledOrUncontrolledSet, controlledOrUncontrolledToggle } from 'src/services/control/control.service.js'
 import { unescape, uniqBy } from 'lodash'
 
 import { library } from '@fortawesome/fontawesome-svg-core'
@@ -62,41 +63,6 @@ library.add(
   faAngleDoubleRight
 )
 
-const camelCase = name => name.charAt(0).toUpperCase() + name.slice(1)
-
-const controlledOrUncontrolledGetters = list => list.reduce((res, name) => {
-  const camelized = camelCase(name)
-  const toggle = `controlledToggle${camelized}`
-  const controlledName = `controlled${camelized}`
-  const uncontrolledName = `uncontrolled${camelized}`
-  res[name] = function () {
-    return ((this.$data[toggle] !== undefined || this.$props[toggle] !== undefined) && this[toggle]) ? this[controlledName] : this[uncontrolledName]
-  }
-  return res
-}, {})
-
-const controlledOrUncontrolledToggle = (obj, name) => {
-  const camelized = camelCase(name)
-  const toggle = `controlledToggle${camelized}`
-  const uncontrolledName = `uncontrolled${camelized}`
-  if (obj[toggle]) {
-    obj[toggle]()
-  } else {
-    obj[uncontrolledName] = !obj[uncontrolledName]
-  }
-}
-
-const controlledOrUncontrolledSet = (obj, name, val) => {
-  const camelized = camelCase(name)
-  const set = `controlledSet${camelized}`
-  const uncontrolledName = `uncontrolled${camelized}`
-  if (obj[set]) {
-    obj[set](val)
-  } else {
-    obj[uncontrolledName] = val
-  }
-}
-
 const Status = {
   name: 'Status',
   components: {
@@ -149,6 +115,8 @@ const Status = {
     'controlledToggleReplying',
     'controlledMediaPlaying',
     'controlledSetMediaPlaying',
+    'controlledCurrentLanguage',
+    'controlledSetCurrentLanguage',
     'dive'
   ],
   data () {
@@ -157,13 +125,14 @@ const Status = {
       unmuted: false,
       userExpanded: false,
       uncontrolledMediaPlaying: [],
+      uncontrolledCurrentLanguage: undefined,
       suspendable: true,
       error: null,
       headTailLinks: null
     }
   },
   computed: {
-    ...controlledOrUncontrolledGetters(['replying', 'mediaPlaying']),
+    ...controlledOrUncontrolledGetters(['replying', 'mediaPlaying', 'currentLanguage']),
     muteWords () {
       return this.mergedConfig.muteWords
     },
@@ -448,6 +417,9 @@ const Status = {
     removeMediaPlaying (id) {
       controlledOrUncontrolledSet(this, 'mediaPlaying', this.mediaPlaying.filter(mediaId => mediaId !== id))
     },
+    setCurrentLanguage (language) {
+      controlledOrUncontrolledSet(this, 'currentLanguage', language)
+    },
     setHeadTailLinks (headTailLinks) {
       this.headTailLinks = headTailLinks
     },
diff --git a/src/components/status/status.vue b/src/components/status/status.vue
index 35b15362..4347f1ae 100644
--- a/src/components/status/status.vue
+++ b/src/components/status/status.vue
@@ -356,9 +356,11 @@
             :controlled-showing-tall="controlledShowingTall"
             :controlled-expanding-subject="controlledExpandingSubject"
             :controlled-showing-long-subject="controlledShowingLongSubject"
+            :controlled-current-language="controlledCurrentLanguage"
             :controlled-toggle-showing-tall="controlledToggleShowingTall"
             :controlled-toggle-expanding-subject="controlledToggleExpandingSubject"
             :controlled-toggle-showing-long-subject="controlledToggleShowingLongSubject"
+            :controlled-set-current-language="controlledSetCurrentLanguage"
             @mediaplay="addMediaPlaying($event)"
             @mediapause="removeMediaPlaying($event)"
             @parseReady="setHeadTailLinks"
diff --git a/src/components/status_body/status_body.js b/src/components/status_body/status_body.js
index b8f6f9a0..1dd4f3a6 100644
--- a/src/components/status_body/status_body.js
+++ b/src/components/status_body/status_body.js
@@ -32,7 +32,9 @@ const StatusContent = {
     'showingLongSubject',
     'toggleShowingTall',
     'toggleExpandingSubject',
-    'toggleShowingLongSubject'
+    'toggleShowingLongSubject',
+    'currentLanguage',
+    'setCurrentLanguage'
   ],
   data () {
     return {
@@ -78,6 +80,18 @@ const StatusContent = {
     attachmentTypes () {
       return this.status.attachments.map(file => fileType.fileType(file.mimetype))
     },
+    languages () {
+      return this.status.languages
+    },
+    currentLanguageOrDefault () {
+      return this.currentLanguage || this.languages[0]
+    },
+    summary () {
+      return this.currentLanguageOrDefault ? this.status.summary_raw_html_map[this.currentLanguageOrDefault] : this.status.summary_raw_html
+    },
+    content () {
+      return this.currentLanguageOrDefault ? this.status.raw_html_map[this.currentLanguageOrDefault] : this.status.raw_html
+    },
     ...mapGetters(['mergedConfig'])
   },
   components: {
diff --git a/src/components/status_body/status_body.scss b/src/components/status_body/status_body.scss
index 8fd60afc..d7a6e29f 100644
--- a/src/components/status_body/status_body.scss
+++ b/src/components/status_body/status_body.scss
@@ -4,6 +4,12 @@
   display: flex;
   flex-direction: column;
 
+  .language-selector {
+    display: flex;
+    flex-direction: row;
+    overflow: hidden;
+  }
+
   .emoji {
     --_still_image-label-scale: 0.5;
   }
diff --git a/src/components/status_body/status_body.vue b/src/components/status_body/status_body.vue
index fb356360..b35d5d3b 100644
--- a/src/components/status_body/status_body.vue
+++ b/src/components/status_body/status_body.vue
@@ -5,13 +5,27 @@
   >
     <div class="body">
       <div
-        v-if="status.summary_raw_html"
+        v-if="languages"
+        class="language-selector"
+      >
+        <button
+          v-for="language in languages"
+          :key="language"
+          class="language-selector-item tab button-default"
+          :class="{ active: language === currentLanguageOrDefault }"
+          @click="setCurrentLanguage(language)"
+        >
+          {{ language }}
+        </button>
+      </div>
+      <div
+        v-if="summary"
         class="summary-wrapper"
         :class="{ '-tall': (longSubject && !showingLongSubject) }"
       >
         <RichContent
           class="media-body summary"
-          :html="status.summary_raw_html"
+          :html="summary"
           :emoji="status.emojis"
         />
         <button
@@ -42,10 +56,10 @@
           {{ $t("general.show_more") }}
         </button>
         <RichContent
-          v-if="!hideSubjectStatus && !(singleLine && status.summary_raw_html)"
+          v-if="!hideSubjectStatus && !(singleLine && summary)"
           :class="{ '-single-line': singleLine }"
           class="text media-body"
-          :html="status.raw_html"
+          :html="content"
           :emoji="status.emojis"
           :handle-links="true"
           :greentext="mergedConfig.greentext"
diff --git a/src/components/status_content/status_content.js b/src/components/status_content/status_content.js
index 89f0aa51..08ca134e 100644
--- a/src/components/status_content/status_content.js
+++ b/src/components/status_content/status_content.js
@@ -4,6 +4,7 @@ import Gallery from '../gallery/gallery.vue'
 import StatusBody from 'src/components/status_body/status_body.vue'
 import LinkPreview from '../link-preview/link-preview.vue'
 import { mapGetters, mapState } from 'vuex'
+import { controlledOrUncontrolledGetters, controlledOrUncontrolledSet, controlledOrUncontrolledToggle } from 'src/services/control/control.service.js'
 import { library } from '@fortawesome/fontawesome-svg-core'
 import {
   faCircleNotch,
@@ -23,30 +24,6 @@ library.add(
   faPollH
 )
 
-const camelCase = name => name.charAt(0).toUpperCase() + name.slice(1)
-
-const controlledOrUncontrolledGetters = list => list.reduce((res, name) => {
-  const camelized = camelCase(name)
-  const toggle = `controlledToggle${camelized}`
-  const controlledName = `controlled${camelized}`
-  const uncontrolledName = `uncontrolled${camelized}`
-  res[name] = function () {
-    return ((this.$data[toggle] !== undefined || this.$props[toggle] !== undefined) && this[toggle]) ? this[controlledName] : this[uncontrolledName]
-  }
-  return res
-}, {})
-
-const controlledOrUncontrolledToggle = (obj, name) => {
-  const camelized = camelCase(name)
-  const toggle = `controlledToggle${camelized}`
-  const uncontrolledName = `uncontrolled${camelized}`
-  if (obj[toggle]) {
-    obj[toggle]()
-  } else {
-    obj[uncontrolledName] = !obj[uncontrolledName]
-  }
-}
-
 const StatusContent = {
   name: 'StatusContent',
   props: [
@@ -61,18 +38,21 @@ const StatusContent = {
     'controlledToggleShowingTall',
     'controlledToggleExpandingSubject',
     'controlledShowingLongSubject',
-    'controlledToggleShowingLongSubject'
+    'controlledToggleShowingLongSubject',
+    'controlledCurrentLanguage',
+    'controlledSetCurrentLanguage'
   ],
   data () {
     return {
       uncontrolledShowingTall: this.fullContent || (this.inConversation && this.focused),
       uncontrolledShowingLongSubject: false,
       // not as computed because it sets the initial state which will be changed later
-      uncontrolledExpandingSubject: !this.$store.getters.mergedConfig.collapseMessageWithSubject
+      uncontrolledExpandingSubject: !this.$store.getters.mergedConfig.collapseMessageWithSubject,
+      uncontrolledCurrentLanguage: undefined
     }
   },
   computed: {
-    ...controlledOrUncontrolledGetters(['showingTall', 'expandingSubject', 'showingLongSubject']),
+    ...controlledOrUncontrolledGetters(['showingTall', 'expandingSubject', 'showingLongSubject', 'currentLanguage']),
     hideAttachments () {
       return (this.mergedConfig.hideAttachments && !this.inConversation) ||
         (this.mergedConfig.hideAttachmentsInConv && this.inConversation)
@@ -121,6 +101,9 @@ const StatusContent = {
     toggleShowingLongSubject () {
       controlledOrUncontrolledToggle(this, 'showingLongSubject')
     },
+    setCurrentLanguage (language) {
+      controlledOrUncontrolledSet(this, 'currentLanguage', language)
+    },
     setMedia () {
       const attachments = this.attachmentSize === 'hide' ? this.status.attachments : this.galleryAttachments
       return () => this.$store.dispatch('setMedia', attachments)
diff --git a/src/components/status_content/status_content.vue b/src/components/status_content/status_content.vue
index c0e5c0b9..abe9b390 100644
--- a/src/components/status_content/status_content.vue
+++ b/src/components/status_content/status_content.vue
@@ -11,9 +11,11 @@
       :showing-tall="showingTall"
       :expanding-subject="expandingSubject"
       :showing-long-subject="showingLongSubject"
+      :current-language="currentLanguage"
       :toggle-showing-tall="toggleShowingTall"
       :toggle-expanding-subject="toggleExpandingSubject"
       :toggle-showing-long-subject="toggleShowingLongSubject"
+      :set-current-language="setCurrentLanguage"
       @parseReady="$emit('parseReady', $event)"
     >
       <div v-if="status.poll && status.poll.options && !compact">
diff --git a/src/components/thread_tree/thread_tree.js b/src/components/thread_tree/thread_tree.js
index 71e63725..45367a56 100644
--- a/src/components/thread_tree/thread_tree.js
+++ b/src/components/thread_tree/thread_tree.js
@@ -82,7 +82,7 @@ const ThreadTree = {
       this.toggleStatusContentProperty(this.status.id, name)
     },
     setCurrentProp (name, newVal) {
-      this.setStatusContentProperty(this.status.id, name)
+      this.setStatusContentProperty(this.status.id, name, newVal)
     }
   }
 }
diff --git a/src/components/thread_tree/thread_tree.vue b/src/components/thread_tree/thread_tree.vue
index 04727278..823fd653 100644
--- a/src/components/thread_tree/thread_tree.vue
+++ b/src/components/thread_tree/thread_tree.vue
@@ -24,11 +24,13 @@
       :controlled-showing-long-subject="currentProp.showingLongSubject"
       :controlled-replying="currentProp.replying"
       :controlled-media-playing="currentProp.mediaPlaying"
+      :controlled-current-language="currentProp.currentLanguage"
       :controlled-toggle-showing-tall="() => toggleCurrentProp('showingTall')"
       :controlled-toggle-expanding-subject="() => toggleCurrentProp('expandingSubject')"
       :controlled-toggle-showing-long-subject="() => toggleCurrentProp('showingLongSubject')"
       :controlled-toggle-replying="() => toggleCurrentProp('replying')"
       :controlled-set-media-playing="(newVal) => setCurrentProp('mediaPlaying', newVal)"
+      :controlled-set-current-language="(newVal) => setCurrentProp('currentLanguage', newVal)"
       :dive="dive ? () => dive(status.id) : undefined"
 
       @goto="setHighlight"
diff --git a/src/services/control/control.service.js b/src/services/control/control.service.js
new file mode 100644
index 00000000..a89a244f
--- /dev/null
+++ b/src/services/control/control.service.js
@@ -0,0 +1,39 @@
+const camelCase = name => name.charAt(0).toUpperCase() + name.slice(1)
+
+export const controlledOrUncontrolledGetters = list => list.reduce((res, name) => {
+  const camelized = camelCase(name)
+  const toggle = `controlledToggle${camelized}`
+  const set = `controlledSet${camelized}`
+  const controlledName = `controlled${camelized}`
+  const uncontrolledName = `uncontrolled${camelized}`
+  res[name] = function () {
+    return (((this.$data[toggle] !== undefined || this.$props[toggle] !== undefined) && this[toggle]) ||
+      ((this.$data[set] !== undefined || this.$props[set] !== undefined) && this[set])
+    )
+      ? this[controlledName]
+      : this[uncontrolledName]
+  }
+  return res
+}, {})
+
+export const controlledOrUncontrolledToggle = (obj, name) => {
+  const camelized = camelCase(name)
+  const toggle = `controlledToggle${camelized}`
+  const uncontrolledName = `uncontrolled${camelized}`
+  if (obj[toggle]) {
+    obj[toggle]()
+  } else {
+    obj[uncontrolledName] = !obj[uncontrolledName]
+  }
+}
+
+export const controlledOrUncontrolledSet = (obj, name, val) => {
+  const camelized = camelCase(name)
+  const set = `controlledSet${camelized}`
+  const uncontrolledName = `uncontrolled${camelized}`
+  if (obj[set]) {
+    obj[set](val)
+  } else {
+    obj[uncontrolledName] = val
+  }
+}
diff --git a/src/services/entity_normalizer/entity_normalizer.service.js b/src/services/entity_normalizer/entity_normalizer.service.js
index 53c3108c..bbbaf1b9 100644
--- a/src/services/entity_normalizer/entity_normalizer.service.js
+++ b/src/services/entity_normalizer/entity_normalizer.service.js
@@ -2,6 +2,7 @@ import escape from 'escape-html'
 import parseLinkHeader from 'parse-link-header'
 import { isStatusNotification } from '../notification_utils/notification_utils.js'
 import punycode from 'punycode.js'
+import { uniq } from 'lodash'
 
 /** NOTICE! **
  * Do not initialize UI-generated data here.
@@ -309,6 +310,7 @@ export const parseStatus = (data) => {
     output.nsfw = data.sensitive
 
     output.raw_html = data.content
+    output.raw_html_map = data.content_map || {}
     output.emojis = data.emojis
 
     output.tags = data.tags
@@ -339,6 +341,11 @@ export const parseStatus = (data) => {
     }
 
     output.summary_raw_html = escape(data.spoiler_text)
+    output.summary_raw_html_map = Object.entries(data.spoiler_text_map || {})
+      .reduce((acc, [lang, txt]) => {
+        acc[lang] = escape(txt)
+        return acc
+      }, {})
     output.external_url = data.url
     output.poll = data.poll
     if (output.poll) {
@@ -349,6 +356,7 @@ export const parseStatus = (data) => {
     }
     output.pinned = data.pinned
     output.muted = data.muted
+    output.languages = uniq(Object.keys(output.raw_html_map).concat(Object.keys(output.summary_raw_html_map)))
   } else {
     output.favorited = data.favorited
     output.fave_num = data.fave_num