diff --git a/ui/src/components/markdown-textarea.tsx b/ui/src/components/markdown-textarea.tsx
index cd2dda11..3ad8fd5b 100644
--- a/ui/src/components/markdown-textarea.tsx
+++ b/ui/src/components/markdown-textarea.tsx
@@ -187,6 +187,24 @@ export class MarkdownTextArea extends Component<
                 <use xlinkHref="#icon-italic"></use>
               </svg>
             </button>
+            <button
+              class="btn btn-sm text-muted"
+              data-tippy-content={i18n.t('subscript')}
+              onClick={linkEvent(this, this.handleInsertSubscript)}
+            >
+              <svg class="icon icon-inline">
+                <use xlinkHref="#icon-subscript"></use>
+              </svg>
+            </button>
+            <button
+              class="btn btn-sm text-muted"
+              data-tippy-content={i18n.t('superscript')}
+              onClick={linkEvent(this, this.handleInsertSuperscript)}
+            >
+              <svg class="icon icon-inline">
+                <use xlinkHref="#icon-superscript"></use>
+              </svg>
+            </button>
             <button
               class="btn btn-sm text-muted"
               data-tippy-content={i18n.t('link')}
diff --git a/ui/src/components/symbols.tsx b/ui/src/components/symbols.tsx
index 786f2868..48d5a5b6 100644
--- a/ui/src/components/symbols.tsx
+++ b/ui/src/components/symbols.tsx
@@ -192,6 +192,12 @@ export class Symbols extends Component<any, any> {
           <symbol id="icon-cake" viewBox="0 0 24 24">
             <path d="M 23.296875 22.394531 L 22.082031 22.394531 L 22.082031 17.007812 C 22.453125 16.699219 22.664062 16.261719 22.664062 15.796875 L 22.664062 13.984375 C 22.664062 12.996094 21.785156 12.191406 20.703125 12.191406 L 19.785156 12.191406 L 19.785156 7.785156 C 19.785156 7.050781 19.1875 6.449219 18.449219 6.449219 L 18.367188 6.449219 L 18.367188 5.96875 C 19.199219 5.675781 19.796875 4.882812 19.796875 3.957031 C 19.796875 3.644531 19.703125 3.117188 18.996094 1.800781 C 18.632812 1.121094 18.273438 0.550781 18.257812 0.527344 C 18.128906 0.320312 17.90625 0.199219 17.664062 0.199219 C 17.421875 0.199219 17.199219 0.320312 17.070312 0.527344 C 17.054688 0.550781 16.695312 1.121094 16.332031 1.800781 C 15.621094 3.117188 15.53125 3.644531 15.53125 3.957031 C 15.53125 4.882812 16.128906 5.675781 16.960938 5.96875 L 16.960938 6.449219 L 16.878906 6.449219 C 16.140625 6.449219 15.542969 7.050781 15.542969 7.785156 L 15.542969 12.191406 L 14.121094 12.191406 L 14.121094 7.785156 C 14.121094 7.050781 13.523438 6.449219 12.785156 6.449219 L 12.703125 6.449219 L 12.703125 5.96875 C 13.535156 5.675781 14.132812 4.882812 14.132812 3.957031 C 14.132812 3.644531 14.039062 3.117188 13.332031 1.800781 C 12.96875 1.121094 12.609375 0.550781 12.59375 0.527344 C 12.464844 0.320312 12.242188 0.199219 12 0.199219 C 11.757812 0.199219 11.535156 0.320312 11.40625 0.527344 C 11.390625 0.550781 11.03125 1.121094 10.667969 1.800781 C 9.960938 3.117188 9.867188 3.644531 9.867188 3.957031 C 9.867188 4.882812 10.464844 5.675781 11.296875 5.96875 L 11.296875 6.449219 L 11.214844 6.449219 C 10.476562 6.449219 9.878906 7.050781 9.878906 7.785156 L 9.878906 12.191406 L 8.457031 12.191406 L 8.457031 7.785156 C 8.457031 7.050781 7.859375 6.449219 7.121094 6.449219 L 7.039062 6.449219 L 7.039062 5.96875 C 7.871094 5.675781 8.46875 4.882812 8.46875 3.957031 C 8.46875 3.644531 8.378906 3.117188 7.667969 1.800781 C 7.304688 1.121094 6.945312 0.550781 6.929688 0.527344 C 6.800781 0.320312 6.578125 0.199219 6.335938 0.199219 C 6.09375 0.199219 5.871094 0.320312 5.742188 0.527344 C 5.726562 0.550781 5.367188 1.121094 5.003906 1.800781 C 4.296875 3.117188 4.203125 3.644531 4.203125 3.957031 C 4.203125 4.882812 4.800781 5.675781 5.632812 5.96875 L 5.632812 6.449219 L 5.550781 6.449219 C 4.8125 6.449219 4.214844 7.050781 4.214844 7.785156 L 4.214844 12.191406 L 3.296875 12.191406 C 2.214844 12.191406 1.335938 12.996094 1.335938 13.984375 L 1.335938 15.796875 C 1.335938 16.261719 1.546875 16.699219 1.917969 17.007812 L 1.917969 22.394531 L 0.703125 22.394531 C 0.316406 22.394531 0 22.710938 0 23.097656 C 0 23.488281 0.316406 23.800781 0.703125 23.800781 L 23.296875 23.800781 C 23.683594 23.800781 24 23.488281 24 23.097656 C 24 22.710938 23.683594 22.394531 23.296875 22.394531 Z M 16.9375 3.957031 C 16.941406 3.730469 17.246094 3.054688 17.664062 2.289062 C 18.082031 3.054688 18.382812 3.730469 18.390625 3.957031 C 18.390625 4.355469 18.0625 4.679688 17.664062 4.679688 C 17.265625 4.679688 16.9375 4.355469 16.9375 3.957031 Z M 16.949219 7.855469 L 18.378906 7.855469 L 18.378906 12.1875 L 16.949219 12.1875 Z M 11.273438 3.957031 C 11.277344 3.730469 11.582031 3.054688 12 2.289062 C 12.417969 3.054688 12.722656 3.730469 12.726562 3.957031 C 12.726562 4.355469 12.398438 4.679688 12 4.679688 C 11.601562 4.679688 11.273438 4.355469 11.273438 3.957031 Z M 11.285156 7.855469 L 12.714844 7.855469 L 12.714844 12.1875 L 11.285156 12.1875 Z M 5.609375 3.957031 C 5.613281 3.730469 5.917969 3.054688 6.335938 2.289062 C 6.753906 3.054688 7.058594 3.730469 7.0625 3.957031 C 7.0625 4.355469 6.734375 4.679688 6.335938 4.679688 C 5.9375 4.679688 5.609375 4.355469 5.609375 3.957031 Z M 5.621094 7.855469 L 7.050781 7.855469 L 7.050781 12.1875 L 5.621094 12.1875 Z M 20.675781 22.394531 L 3.324219 22.394531 L 3.324219 17.414062 C 3.433594 17.398438 3.546875 17.378906 3.652344 17.347656 L 5.429688 16.820312 C 6.453125 16.515625 7.582031 16.515625 8.609375 16.820312 L 10.011719 17.234375 C 10.652344 17.425781 11.324219 17.519531 12 17.519531 C 12.675781 17.519531 13.347656 17.425781 13.988281 17.234375 L 15.390625 16.820312 C 16.417969 16.515625 17.546875 16.515625 18.570312 16.820312 L 20.347656 17.347656 C 20.453125 17.378906 20.5625 17.398438 20.675781 17.414062 Z M 21.257812 15.796875 C 21.257812 15.855469 21.210938 15.902344 21.171875 15.933594 C 21.082031 16 20.925781 16.050781 20.746094 15.996094 L 18.972656 15.472656 C 17.6875 15.09375 16.273438 15.09375 14.992188 15.472656 L 13.589844 15.886719 C 12.566406 16.191406 11.433594 16.191406 10.410156 15.886719 L 9.007812 15.472656 C 8.367188 15.28125 7.691406 15.1875 7.019531 15.1875 C 6.34375 15.1875 5.671875 15.28125 5.027344 15.472656 L 3.253906 15.996094 C 3.074219 16.050781 2.917969 16 2.828125 15.933594 C 2.789062 15.902344 2.742188 15.855469 2.742188 15.796875 L 2.742188 13.984375 C 2.742188 13.800781 2.96875 13.597656 3.296875 13.597656 L 20.703125 13.597656 C 21.03125 13.597656 21.257812 13.800781 21.257812 13.984375 Z M 21.257812 15.796875 " />
           </symbol>
+          <symbol id="icon-subscript" viewBox="0 0 20 20">
+            <path d="M13.68 16h-2.42a.67.67 0 0 1-.46-.15 1.33 1.33 0 0 1-.28-.34l-2.77-4.44a2.65 2.65 0 0 1-.28.69L5 15.51a2.22 2.22 0 0 1-.29.34.58.58 0 0 1-.42.15H2l4.15-6.19L2.17 4h2.42a.81.81 0 0 1 .41.09.8.8 0 0 1 .24.26L8 8.59a2.71 2.71 0 0 1 .33-.74L10.6 4.4a.69.69 0 0 1 .6-.4h2.32l-4 5.71zm3.82-4h.5v-1h-.5a1.49 1.49 0 0 0-1 .39 1.49 1.49 0 0 0-1-.39H15v1h.5a.5.5 0 0 1 .5.5v6a.5.5 0 0 1-.5.5H15v1h.5a1.49 1.49 0 0 0 1-.39 1.49 1.49 0 0 0 1 .39h.5v-1h-.5a.5.5 0 0 1-.5-.5v-6a.5.5 0 0 1 .5-.5z"/>
+          </symbol>
+          <symbol id="icon-superscript" viewBox="0 0 20 20">
+            <path d="M17.5 1h.5V0h-.5a1.49 1.49 0 0 0-1 .39 1.49 1.49 0 0 0-1-.39H15v1h.5a.5.5 0 0 1 .5.5v6a.5.5 0 0 1-.5.5H15v1h.5a1.49 1.49 0 0 0 1-.39 1.49 1.49 0 0 0 1 .39h.5V8h-.5a.5.5 0 0 1-.5-.5v-6a.5.5 0 0 1 .5-.5zm-3.82 15h-2.42a.67.67 0 0 1-.46-.15 1.33 1.33 0 0 1-.28-.34l-2.77-4.44a2.65 2.65 0 0 1-.28.69L5 15.51a2.22 2.22 0 0 1-.29.34.58.58 0 0 1-.42.15H2l4.15-6.19L2.17 4h2.42a.81.81 0 0 1 .41.09.8.8 0 0 1 .24.26L8 8.59a2.71 2.71 0 0 1 .33-.74L10.6 4.4a.69.69 0 0 1 .6-.4h2.32l-4 5.71z"/>
+          </symbol>
         </defs>
       </svg>
     );
diff --git a/ui/translations/en.json b/ui/translations/en.json
index e9d768f2..a8f5cf95 100644
--- a/ui/translations/en.json
+++ b/ui/translations/en.json
@@ -53,6 +53,8 @@
     "archive_link": "archive link",
     "bold": "bold",
     "italic": "italic",
+    "subscript": "subscript",
+    "superscript": "superscript",
     "header": "header",
     "strikethrough": "strikethrough",
     "quote": "quote",