diff --git a/CHANGELOG.md b/CHANGELOG.md
index af62232510..b6d6a2590e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,7 @@
 - Enhance: 投稿フォームの「迷惑になる可能性があります」のダイアログを表示する条件においてCWを考慮するように
 - Enhance: アンテナ、リスト等の名前をカラム名のデフォルト値にするように `#13992`
 - Enhance: クライアントエラー画面の多言語対応
+- Enhance: 開発者モードでメニューからファイルIDをコピー出来るように `#15441'
 
 ### Server
 - Fix: `following/invalidate`でフォロワーを解除しようとしているユーザーの情報を返すように
diff --git a/packages/frontend/src/components/MkMediaAudio.vue b/packages/frontend/src/components/MkMediaAudio.vue
index e409b7fd57..e509cac945 100644
--- a/packages/frontend/src/components/MkMediaAudio.vue
+++ b/packages/frontend/src/components/MkMediaAudio.vue
@@ -91,10 +91,11 @@ SPDX-License-Identifier: AGPL-3.0-only
 import { shallowRef, watch, computed, ref, onDeactivated, onActivated, onMounted } from 'vue';
 import * as Misskey from 'misskey-js';
 import type { MenuItem } from '@/types/menu.js';
+import type { Keymap } from '@/scripts/hotkey.js';
+import { copyToClipboard } from '@/scripts/copy-to-clipboard';
 import { defaultStore } from '@/store.js';
 import { i18n } from '@/i18n.js';
 import * as os from '@/os.js';
-import type { Keymap } from '@/scripts/hotkey.js';
 import bytes from '@/filters/bytes.js';
 import { hms } from '@/filters/hms.js';
 import MkMediaRange from '@/components/MkMediaRange.vue';
@@ -227,6 +228,16 @@ function showMenu(ev: MouseEvent) {
 		});
 	}
 
+	if (defaultStore.state.devMode) {
+		menu.push({ type: 'divider' }, {
+			icon: 'ti ti-id',
+			text: i18n.ts.copyFileId,
+			action: () => {
+				copyToClipboard(props.audio.id);
+			},
+		});
+	}
+
 	menuShowing.value = true;
 	os.popupMenu(menu, ev.currentTarget ?? ev.target, {
 		align: 'right',
diff --git a/packages/frontend/src/components/MkMediaImage.vue b/packages/frontend/src/components/MkMediaImage.vue
index ec85569df5..bd6decd082 100644
--- a/packages/frontend/src/components/MkMediaImage.vue
+++ b/packages/frontend/src/components/MkMediaImage.vue
@@ -54,6 +54,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 import { watch, ref, computed } from 'vue';
 import * as Misskey from 'misskey-js';
 import type { MenuItem } from '@/types/menu.js';
+import { copyToClipboard } from '@/scripts/copy-to-clipboard';
 import { getStaticImageUrl } from '@/scripts/media-proxy.js';
 import bytes from '@/filters/bytes.js';
 import ImgWithBlurhash from '@/components/MkImgWithBlurhash.vue';
@@ -143,6 +144,16 @@ function showMenu(ev: MouseEvent) {
 		});
 	}
 
+	if (defaultStore.state.devMode) {
+		menuItems.push({ type: 'divider' }, {
+			icon: 'ti ti-id',
+			text: i18n.ts.copyFileId,
+			action: () => {
+				copyToClipboard(props.image.id);
+			},
+		});
+	}
+
 	os.popupMenu(menuItems, ev.currentTarget ?? ev.target);
 }
 
diff --git a/packages/frontend/src/components/MkMediaVideo.vue b/packages/frontend/src/components/MkMediaVideo.vue
index caa93e3f2b..dec190f16c 100644
--- a/packages/frontend/src/components/MkMediaVideo.vue
+++ b/packages/frontend/src/components/MkMediaVideo.vue
@@ -113,6 +113,7 @@ import { ref, shallowRef, computed, watch, onDeactivated, onActivated, onMounted
 import * as Misskey from 'misskey-js';
 import type { MenuItem } from '@/types/menu.js';
 import type { Keymap } from '@/scripts/hotkey.js';
+import { copyToClipboard } from '@/scripts/copy-to-clipboard';
 import bytes from '@/filters/bytes.js';
 import { hms } from '@/filters/hms.js';
 import { defaultStore } from '@/store.js';
@@ -252,6 +253,16 @@ function showMenu(ev: MouseEvent) {
 		});
 	}
 
+	if (defaultStore.state.devMode) {
+		menu.push({ type: 'divider' }, {
+			icon: 'ti ti-id',
+			text: i18n.ts.copyFileId,
+			action: () => {
+				copyToClipboard(props.video.id);
+			},
+		});
+	}
+
 	menuShowing.value = true;
 	os.popupMenu(menu, ev.currentTarget ?? ev.target, {
 		align: 'right',
diff --git a/packages/frontend/src/components/MkPostFormAttaches.vue b/packages/frontend/src/components/MkPostFormAttaches.vue
index 33fe82b759..f2d6c7e2cd 100644
--- a/packages/frontend/src/components/MkPostFormAttaches.vue
+++ b/packages/frontend/src/components/MkPostFormAttaches.vue
@@ -36,6 +36,8 @@ SPDX-License-Identifier: AGPL-3.0-only
 import { defineAsyncComponent, inject } from 'vue';
 import * as Misskey from 'misskey-js';
 import type { MenuItem } from '@/types/menu';
+import { defaultStore } from '@/store';
+import { copyToClipboard } from '@/scripts/copy-to-clipboard';
 import MkDriveFileThumbnail from '@/components/MkDriveFileThumbnail.vue';
 import * as os from '@/os.js';
 import { misskeyApi } from '@/scripts/misskey-api.js';
@@ -196,6 +198,16 @@ function showFileMenu(file: Misskey.entities.DriveFile, ev: MouseEvent | Keyboar
 		action: () => { detachAndDeleteMedia(file); },
 	});
 
+	if (defaultStore.state.devMode) {
+		menuItems.push({ type: 'divider' }, {
+			icon: 'ti ti-id',
+			text: i18n.ts.copyFileId,
+			action: () => {
+				copyToClipboard(file.id);
+			},
+		});
+	}
+
 	os.popupMenu(menuItems, ev.currentTarget ?? ev.target).then(() => menuShowing = false);
 	menuShowing = true;
 }