diff --git a/web_src/js/components/DashboardRepoList.vue b/web_src/js/components/DashboardRepoList.vue
index e1f8475ea8..82e972ceaf 100644
--- a/web_src/js/components/DashboardRepoList.vue
+++ b/web_src/js/components/DashboardRepoList.vue
@@ -307,6 +307,7 @@ export default defineComponent({
     },
 
     async reposFilterKeyControl(e: KeyboardEvent) {
+      if (e.isComposing) return;
       switch (e.key) {
         case 'Enter':
           document.querySelector<HTMLAnchorElement>('.repo-owner-name-list li.active a')?.click();
diff --git a/web_src/js/components/RepoBranchTagSelector.vue b/web_src/js/components/RepoBranchTagSelector.vue
index a83227d43b..ab32baed37 100644
--- a/web_src/js/components/RepoBranchTagSelector.vue
+++ b/web_src/js/components/RepoBranchTagSelector.vue
@@ -159,6 +159,7 @@ export default defineComponent({
       return el?.length ? el[0] : null;
     },
     keydown(e: KeyboardEvent) {
+      if (e.isComposing) return;
       if (e.key === 'ArrowUp' || e.key === 'ArrowDown') {
         e.preventDefault();
 
diff --git a/web_src/js/components/RepoFileSearch.vue b/web_src/js/components/RepoFileSearch.vue
index dd93de9850..f0c63267bc 100644
--- a/web_src/js/components/RepoFileSearch.vue
+++ b/web_src/js/components/RepoFileSearch.vue
@@ -42,6 +42,8 @@ const handleSearchInput = () => {
 };
 
 const handleKeyDown = (e: KeyboardEvent) => {
+  if (e.isComposing) return;
+
   if (e.key === 'Escape') {
     e.preventDefault();
     clearSearch();
diff --git a/web_src/js/features/common-form.ts b/web_src/js/features/common-form.ts
index fe201e2a01..67bcd55f52 100644
--- a/web_src/js/features/common-form.ts
+++ b/web_src/js/features/common-form.ts
@@ -14,6 +14,7 @@ export function initGlobalFormDirtyLeaveConfirm() {
 
 export function initGlobalEnterQuickSubmit() {
   document.addEventListener('keydown', (e) => {
+    if (e.isComposing) return;
     if (e.key !== 'Enter') return;
     const hasCtrlOrMeta = ((e.ctrlKey || e.metaKey) && !e.altKey);
     if (hasCtrlOrMeta && (e.target as HTMLElement).matches('textarea')) {
diff --git a/web_src/js/features/comp/EditorMarkdown.ts b/web_src/js/features/comp/EditorMarkdown.ts
index cdc9bdaf9a..d95760e841 100644
--- a/web_src/js/features/comp/EditorMarkdown.ts
+++ b/web_src/js/features/comp/EditorMarkdown.ts
@@ -223,6 +223,7 @@ function isTextExpanderShown(textarea: HTMLElement): boolean {
 
 export function initTextareaMarkdown(textarea: HTMLTextAreaElement) {
   textarea.addEventListener('keydown', (e) => {
+    if (e.isComposing) return;
     if (isTextExpanderShown(textarea)) return;
     if (e.key === 'Tab' && !e.ctrlKey && !e.metaKey && !e.altKey) {
       // use Tab/Shift-Tab to indent/unindent the selected lines
diff --git a/web_src/js/features/repo-issue.ts b/web_src/js/features/repo-issue.ts
index 7145936ed1..4b04ed4ccf 100644
--- a/web_src/js/features/repo-issue.ts
+++ b/web_src/js/features/repo-issue.ts
@@ -82,6 +82,7 @@ function initRepoIssueLabelFilter(elDropdown: HTMLElement) {
   });
   // alt(or option) + enter to exclude selected label
   elDropdown.addEventListener('keydown', (e: KeyboardEvent) => {
+    if (e.isComposing) return;
     if (e.altKey && e.key === 'Enter') {
       const selectedItem = elDropdown.querySelector('.label-filter-query-item.selected');
       if (selectedItem) excludeLabel(e, selectedItem);
diff --git a/web_src/js/modules/fomantic/dropdown.ts b/web_src/js/modules/fomantic/dropdown.ts
index 79ca60d347..7f7f3611be 100644
--- a/web_src/js/modules/fomantic/dropdown.ts
+++ b/web_src/js/modules/fomantic/dropdown.ts
@@ -225,6 +225,7 @@ function attachDomEvents(dropdown: HTMLElement, focusable: HTMLElement, menu: HT
   };
 
   dropdown.addEventListener('keydown', (e: KeyboardEvent) => {
+    if (e.isComposing) return;
     // here it must use keydown event before dropdown's keyup handler, otherwise there is no Enter event in our keyup handler
     if (e.key === 'Enter') {
       const elItem = menu.querySelector<HTMLElement>(':scope > .item.selected, .menu > .item.selected');
diff --git a/web_src/js/webcomponents/overflow-menu.ts b/web_src/js/webcomponents/overflow-menu.ts
index b1294eae3a..1ddd984c12 100644
--- a/web_src/js/webcomponents/overflow-menu.ts
+++ b/web_src/js/webcomponents/overflow-menu.ts
@@ -22,6 +22,7 @@ window.customElements.define('overflow-menu', class extends HTMLElement {
       const div = document.createElement('div');
       div.tabIndex = -1; // for initial focus, programmatic focus only
       div.addEventListener('keydown', (e) => {
+        if (e.isComposing) return;
         if (e.key === 'Tab') {
           const items = this.tippyContent.querySelectorAll<HTMLElement>('[role="menuitem"]');
           if (e.shiftKey) {