diff --git a/html/src/app.scss b/html/src/app.scss
index ccb0e295..7e54c613 100644
--- a/html/src/app.scss
+++ b/html/src/app.scss
@@ -443,6 +443,16 @@ i.x-user-status.busy {
     border-color: rgb(255, 208, 0) !important;
 }
 
+.x-tag-platform-pc {
+    color: #409eff !important;
+    border-color: #409eff !important;
+}
+
+.x-tag-platform-quest {
+    color: #67c23a !important;
+    border-color: #67c23a !important;
+}
+
 .el-tree-node {
     white-space: normal;
 }
diff --git a/html/src/index.pug b/html/src/index.pug
index f5ac3a20..8b8a3aff 100644
--- a/html/src/index.pug
+++ b/html/src/index.pug
@@ -768,6 +768,8 @@ html
                                     el-tag.name(type="info" effect="plain" size="mini" :class="userDialog.ref.$trustClass" v-text="userDialog.ref.$trustLevel")
                                     el-tag.x-tag-friend(v-if="userDialog.isFriend && userDialog.friend" type="info" effect="plain" size="mini" style="margin-left:5px") Friend No.{{userDialog.friend.no}}
                                     el-tag.x-tag-vrcplus(type="info" effect="plain" size="mini" v-if="userDialog.ref.$isVRCPlus" style="margin-left:5px") VRC+
+                                    el-tag.x-tag-platform-pc(type="info" effect="plain" size="mini" v-if="userDialog.ref.last_platform === 'standalonewindows'" style="margin-left:5px") PC
+                                    el-tag.x-tag-platform-quest(type="info" effect="plain" size="mini" v-if="userDialog.ref.last_platform === 'android'" style="margin-left:5px") PC
                                 div(style="margin-top:5px")
                                     span(v-text="userDialog.ref.statusDescription" style="font-size:12px")
                             div(v-if="userDialog.ref.userIcon" style="flex:none;margin-right:10px")