diff --git a/src/app/features/room/RoomInput.tsx b/src/app/features/room/RoomInput.tsx
index 76bafc9e..ae46d2d0 100644
--- a/src/app/features/room/RoomInput.tsx
+++ b/src/app/features/room/RoomInput.tsx
@@ -116,6 +116,7 @@ import { useRoomCreators } from '../../hooks/useRoomCreators';
 import { useTheme } from '../../hooks/useTheme';
 import { useRoomCreatorsTag } from '../../hooks/useRoomCreatorsTag';
 import { usePowerLevelTags } from '../../hooks/usePowerLevelTags';
+import { useComposingCheck } from '../../hooks/useComposingCheck';
 
 interface RoomInputProps {
   editor: Editor;
@@ -217,6 +218,8 @@ export const RoomInput = forwardRef<HTMLDivElement, RoomInputProps>(
     const dropZoneVisible = useFileDropZone(fileDropContainerRef, handleFiles);
     const [hideStickerBtn, setHideStickerBtn] = useState(document.body.clientWidth < 500);
 
+    const isComposing = useComposingCheck();
+
     useElementSizeObserver(
       useCallback(() => document.body, []),
       useCallback((width) => setHideStickerBtn(width < 500), [])
@@ -380,7 +383,7 @@ export const RoomInput = forwardRef<HTMLDivElement, RoomInputProps>(
       (evt) => {
         if (
           (isKeyHotkey('mod+enter', evt) || (!enterForNewline && isKeyHotkey('enter', evt))) &&
-          !evt.nativeEvent.isComposing
+          !isComposing(evt)
         ) {
           evt.preventDefault();
           submit();
@@ -394,7 +397,7 @@ export const RoomInput = forwardRef<HTMLDivElement, RoomInputProps>(
           setReplyDraft(undefined);
         }
       },
-      [submit, setReplyDraft, enterForNewline, autocompleteQuery]
+      [submit, setReplyDraft, enterForNewline, autocompleteQuery, isComposing]
     );
 
     const handleKeyUp: KeyboardEventHandler = useCallback(
diff --git a/src/app/features/room/message/MessageEditor.tsx b/src/app/features/room/message/MessageEditor.tsx
index 29a4b837..9a7567aa 100644
--- a/src/app/features/room/message/MessageEditor.tsx
+++ b/src/app/features/room/message/MessageEditor.tsx
@@ -53,6 +53,7 @@ import { AsyncStatus, useAsyncCallback } from '../../../hooks/useAsyncCallback';
 import { useMatrixClient } from '../../../hooks/useMatrixClient';
 import { getEditedEvent, getMentionContent, trimReplyFromFormattedBody } from '../../../utils/room';
 import { mobileOrTablet } from '../../../utils/user-agent';
+import { useComposingCheck } from '../../../hooks/useComposingCheck';
 
 type MessageEditorProps = {
   roomId: string;
@@ -69,6 +70,7 @@ export const MessageEditor = as<'div', MessageEditorProps>(
     const [globalToolbar] = useSetting(settingsAtom, 'editorToolbar');
     const [isMarkdown] = useSetting(settingsAtom, 'isMarkdown');
     const [toolbar, setToolbar] = useState(globalToolbar);
+    const isComposing = useComposingCheck();
 
     const [autocompleteQuery, setAutocompleteQuery] =
       useState<AutocompleteQuery<AutocompletePrefix>>();
@@ -163,7 +165,10 @@ export const MessageEditor = as<'div', MessageEditorProps>(
 
     const handleKeyDown: KeyboardEventHandler = useCallback(
       (evt) => {
-        if ((isKeyHotkey('mod+enter', evt) || (!enterForNewline && isKeyHotkey('enter', evt))) && !evt.nativeEvent.isComposing) {
+        if (
+          (isKeyHotkey('mod+enter', evt) || (!enterForNewline && isKeyHotkey('enter', evt))) &&
+          !isComposing(evt)
+        ) {
           evt.preventDefault();
           handleSave();
         }
@@ -172,7 +177,7 @@ export const MessageEditor = as<'div', MessageEditorProps>(
           onCancel();
         }
       },
-      [onCancel, handleSave, enterForNewline]
+      [onCancel, handleSave, enterForNewline, isComposing]
     );
 
     const handleKeyUp: KeyboardEventHandler = useCallback(
diff --git a/src/app/hooks/useComposingCheck.ts b/src/app/hooks/useComposingCheck.ts
new file mode 100644
index 00000000..687a4927
--- /dev/null
+++ b/src/app/hooks/useComposingCheck.ts
@@ -0,0 +1,47 @@
+import { useCallback, useEffect } from 'react';
+import { useAtomValue, useSetAtom } from 'jotai';
+import { lastCompositionEndAtom } from '../state/lastCompositionEnd';
+
+interface TimeStamped {
+  readonly timeStamp: number;
+}
+
+export function useCompositionEndTracking(): void {
+  const setLastCompositionEnd = useSetAtom(lastCompositionEndAtom);
+
+  const recordCompositionEnd = useCallback(
+    (evt: TimeStamped) => {
+      setLastCompositionEnd(evt.timeStamp);
+    },
+    [setLastCompositionEnd]
+  );
+
+  useEffect(() => {
+    window.addEventListener('compositionend', recordCompositionEnd, { capture: true });
+    return () => {
+      window.removeEventListener('compositionend', recordCompositionEnd, { capture: true });
+    };
+  });
+}
+
+interface IsComposingLike {
+  readonly timeStamp: number;
+  readonly keyCode: number;
+  readonly nativeEvent: {
+    readonly isComposing?: boolean;
+  };
+}
+
+export function useComposingCheck({
+  compositionEndThreshold = 500,
+}: { compositionEndThreshold?: number } = {}): (evt: IsComposingLike) => boolean {
+  const compositionEnd = useAtomValue(lastCompositionEndAtom);
+  return useCallback(
+    (evt: IsComposingLike): boolean =>
+      evt.nativeEvent.isComposing ||
+      (evt.keyCode === 229 &&
+        typeof compositionEnd !== 'undefined' &&
+        evt.timeStamp - compositionEnd < compositionEndThreshold),
+    [compositionEndThreshold, compositionEnd]
+  );
+}
diff --git a/src/app/pages/App.tsx b/src/app/pages/App.tsx
index 0a919b57..52ec7f20 100644
--- a/src/app/pages/App.tsx
+++ b/src/app/pages/App.tsx
@@ -11,11 +11,13 @@ import { ConfigConfigError, ConfigConfigLoading } from './ConfigConfig';
 import { FeatureCheck } from './FeatureCheck';
 import { createRouter } from './Router';
 import { ScreenSizeProvider, useScreenSize } from '../hooks/useScreenSize';
+import { useCompositionEndTracking } from '../hooks/useComposingCheck';
 
 const queryClient = new QueryClient();
 
 function App() {
   const screenSize = useScreenSize();
+  useCompositionEndTracking();
 
   const portalContainer = document.getElementById('portalContainer') ?? undefined;
 
diff --git a/src/app/state/lastCompositionEnd.ts b/src/app/state/lastCompositionEnd.ts
new file mode 100644
index 00000000..7235b491
--- /dev/null
+++ b/src/app/state/lastCompositionEnd.ts
@@ -0,0 +1,3 @@
+import { atom } from 'jotai';
+
+export const lastCompositionEndAtom = atom<number | undefined>(undefined);