diff --git a/locales/index.d.ts b/locales/index.d.ts
index 4b99c7f862..b05cda5c11 100644
--- a/locales/index.d.ts
+++ b/locales/index.d.ts
@@ -12071,6 +12071,20 @@ export interface Locale extends ILocale {
          * エフェクト
          */
         "title": string;
+        "_fxs": {
+            /**
+             * 色収差
+             */
+            "chromaticAberration": string;
+            /**
+             * グリッチ
+             */
+            "glitch": string;
+            /**
+             * ミラー
+             */
+            "mirror": string;
+        };
     };
 }
 declare const locales: {
diff --git a/locales/ja-JP.yml b/locales/ja-JP.yml
index a243c72792..313dc6aa68 100644
--- a/locales/ja-JP.yml
+++ b/locales/ja-JP.yml
@@ -3234,3 +3234,8 @@ _watermarkEditor:
 
 _imageEffector:
   title: "エフェクト"
+
+  _fxs:
+    chromaticAberration: "色収差"
+    glitch: "グリッチ"
+    mirror: "ミラー"
diff --git a/packages/frontend/src/components/MkImageEffectorDialog.Layer.vue b/packages/frontend/src/components/MkImageEffectorDialog.Layer.vue
index 50bcd6cfca..bd38248d29 100644
--- a/packages/frontend/src/components/MkImageEffectorDialog.Layer.vue
+++ b/packages/frontend/src/components/MkImageEffectorDialog.Layer.vue
@@ -5,7 +5,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 
 <template>
 <MkFolder :defaultOpen="true">
-	<template #label>{{ fx.id }}</template>
+	<template #label>{{ fx.name }}</template>
 	<template #footer>
 		<MkButton @click="emit('del')">{{ i18n.ts.remove }}</MkButton>
 	</template>
@@ -18,6 +18,10 @@ SPDX-License-Identifier: AGPL-3.0-only
 			<MkRange v-else-if="v.type === 'number'" v-model="layer.params[k]" continuousUpdate :min="v.min" :max="v.max" :step="v.step">
 				<template #label>{{ k }}</template>
 			</MkRange>
+			<MkRadios v-else-if="v.type === 'number:enum'" v-model="layer.params[k]">
+				<template #label>{{ k }}</template>
+				<option v-for="item in v.enum" :value="item.value">{{ item.label }}</option>
+			</MkRadios>
 			<div v-else-if="v.type === 'seed'">
 				<MkRange v-model="layer.params[k]" continuousUpdate type="number" :min="0" :max="10000" :step="1">
 					<template #label>{{ k }}</template>
@@ -37,6 +41,7 @@ import { FXS, ImageEffector } from '@/utility/image-effector/ImageEffector.js';
 import MkFolder from '@/components/MkFolder.vue';
 import MkButton from '@/components/MkButton.vue';
 import MkInput from '@/components/MkInput.vue';
+import MkRadios from '@/components/MkRadios.vue';
 import MkSwitch from '@/components/MkSwitch.vue';
 import MkRange from '@/components/MkRange.vue';
 import FormSlot from '@/components/form/slot.vue';
diff --git a/packages/frontend/src/components/MkImageEffectorDialog.vue b/packages/frontend/src/components/MkImageEffectorDialog.vue
index f1f6bc57c8..e91c2be04f 100644
--- a/packages/frontend/src/components/MkImageEffectorDialog.vue
+++ b/packages/frontend/src/components/MkImageEffectorDialog.vue
@@ -61,7 +61,7 @@ const props = defineProps<{
 }>();
 
 const emit = defineEmits<{
-	(ev: 'ok', preset: WatermarkPreset): void;
+	(ev: 'ok', image: File): void;
 	(ev: 'cancel'): void;
 	(ev: 'closed'): void;
 }>();
@@ -83,7 +83,7 @@ watch(layers, async () => {
 
 function addEffect(ev: MouseEvent) {
 	os.popupMenu(FXS.filter(fx => fx.id !== 'watermarkPlacement').map((fx) => ({
-		text: fx.id,
+		text: fx.name,
 		action: () => {
 			layers.push({
 				id: uuid(),
@@ -125,6 +125,14 @@ onUnmounted(() => {
 		renderer = null;
 	}
 });
+
+function save() {
+	renderer!.render(); // toBlobの直前にレンダリングしないと何故か壊れる
+	canvasEl.value!.toBlob((blob) => {
+		emit('ok', new File([blob!], `image-${Date.now()}.png`, { type: 'image/png' }));
+		dialog.value?.close();
+	}, 'image/png');
+}
 </script>
 
 <style module>
diff --git a/packages/frontend/src/components/MkUploaderDialog.vue b/packages/frontend/src/components/MkUploaderDialog.vue
index d4ad0f8c7f..444cd0619f 100644
--- a/packages/frontend/src/components/MkUploaderDialog.vue
+++ b/packages/frontend/src/components/MkUploaderDialog.vue
@@ -280,10 +280,14 @@ function showMenu(ev: MouseEvent, item: typeof items.value[0]) {
 			action: async () => {
 				const cropped = await os.cropImageFile(item.file, { aspectRatio: null });
 				URL.revokeObjectURL(item.thumbnail);
-				items.value.splice(items.value.indexOf(item), 1, {
+				const newItem = {
 					...item,
 					file: markRaw(cropped),
 					thumbnail: window.URL.createObjectURL(cropped),
+				};
+				items.value.splice(items.value.indexOf(item), 1, newItem);
+				preprocess(newItem).then(() => {
+					triggerRef(items);
 				});
 			},
 		});
@@ -298,9 +302,22 @@ function showMenu(ev: MouseEvent, item: typeof items.value[0]) {
 				const { dispose } = os.popup(defineAsyncComponent(() => import('@/components/MkImageEffectorDialog.vue')), {
 					image: img,
 				}, {
-					ok: () => {
+					ok: (file) => {
+						URL.revokeObjectURL(item.thumbnail);
+						const newItem = {
+							...item,
+							file: markRaw(file),
+							thumbnail: window.URL.createObjectURL(file),
+						};
+						items.value.splice(items.value.indexOf(item), 1, newItem);
+						preprocess(newItem).then(() => {
+							triggerRef(items);
+						});
+					},
+					closed: () => {
+						URL.revokeObjectURL(img.src);
+						dispose();
 					},
-					closed: () => dispose(),
 				});
 			},
 		});
diff --git a/packages/frontend/src/utility/image-effector/ImageEffector.ts b/packages/frontend/src/utility/image-effector/ImageEffector.ts
index bbb5165ae2..dca61632e8 100644
--- a/packages/frontend/src/utility/image-effector/ImageEffector.ts
+++ b/packages/frontend/src/utility/image-effector/ImageEffector.ts
@@ -6,10 +6,12 @@
 import { getProxiedImageUrl } from '../media-proxy.js';
 import { FX_chromaticAberration } from './fxs/chromaticAberration.js';
 import { FX_glitch } from './fxs/glitch.js';
+import { FX_mirror } from './fxs/mirror.js';
 import { FX_watermarkPlacement } from './fxs/watermarkPlacement.js';
 
 type ParamTypeToPrimitive = {
 	'number': number;
+	'number:enum': number;
 	'boolean': boolean;
 	'align': { x: 'left' | 'center' | 'right'; y: 'top' | 'center' | 'bottom'; };
 	'seed': number;
@@ -26,6 +28,7 @@ export function defineImageEffectorFx<ID extends string, P extends ImageEffector
 
 export type ImageEffectorFx<ID extends string, P extends ImageEffectorFxParamDefs> = {
 	id: ID;
+	name: string;
 	shader: string;
 	params: P,
 	main: (ctx: {
@@ -49,6 +52,7 @@ export const FXS = [
 	FX_watermarkPlacement,
 	FX_chromaticAberration,
 	FX_glitch,
+	FX_mirror,
 ] as const satisfies ImageEffectorFx<string, any>[];
 
 export type ImageEffectorLayerOf<
diff --git a/packages/frontend/src/utility/image-effector/fxs/chromaticAberration.ts b/packages/frontend/src/utility/image-effector/fxs/chromaticAberration.ts
index 8fa79636ea..70811c7b95 100644
--- a/packages/frontend/src/utility/image-effector/fxs/chromaticAberration.ts
+++ b/packages/frontend/src/utility/image-effector/fxs/chromaticAberration.ts
@@ -4,6 +4,7 @@
  */
 
 import { defineImageEffectorFx } from '../ImageEffector.js';
+import { i18n } from '@/i18n.js';
 
 const shader = `#version 300 es
 precision highp float;
@@ -52,6 +53,7 @@ void main() {
 
 export const FX_chromaticAberration = defineImageEffectorFx({
 	id: 'chromaticAberration' as const,
+	name: i18n.ts._imageEffector._fxs.chromaticAberration,
 	shader,
 	params: {
 		normalize: {
diff --git a/packages/frontend/src/utility/image-effector/fxs/glitch.ts b/packages/frontend/src/utility/image-effector/fxs/glitch.ts
index fac0effee7..437601e592 100644
--- a/packages/frontend/src/utility/image-effector/fxs/glitch.ts
+++ b/packages/frontend/src/utility/image-effector/fxs/glitch.ts
@@ -5,6 +5,7 @@
 
 import seedrandom from 'seedrandom';
 import { defineImageEffectorFx } from '../ImageEffector.js';
+import { i18n } from '@/i18n.js';
 
 const shader = `#version 300 es
 precision highp float;
@@ -38,6 +39,7 @@ void main() {
 
 export const FX_glitch = defineImageEffectorFx({
 	id: 'glitch' as const,
+	name: i18n.ts._imageEffector._fxs.glitch,
 	shader,
 	params: {
 		amount: {
diff --git a/packages/frontend/src/utility/image-effector/fxs/mirror.ts b/packages/frontend/src/utility/image-effector/fxs/mirror.ts
new file mode 100644
index 0000000000..5083d17eab
--- /dev/null
+++ b/packages/frontend/src/utility/image-effector/fxs/mirror.ts
@@ -0,0 +1,66 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { defineImageEffectorFx } from '../ImageEffector.js';
+import { i18n } from '@/i18n.js';
+
+const shader = `#version 300 es
+precision highp float;
+
+in vec2 in_uv;
+uniform sampler2D u_texture;
+uniform vec2 u_resolution;
+uniform int u_h;
+uniform int u_v;
+out vec4 out_color;
+
+void main() {
+	vec4 pixel = texture(u_texture, in_uv);
+	vec2 uv = in_uv;
+	if (u_h == -1 && in_uv.x > 0.5) {
+		uv.x = 1.0 - uv.x;
+	}
+	if (u_h == 1 && in_uv.x < 0.5) {
+		uv.x = 1.0 - uv.x;
+	}
+	if (u_v == -1 && in_uv.y > 0.5) {
+		uv.y = 1.0 - uv.y;
+	}
+	if (u_v == 1 && in_uv.y < 0.5) {
+		uv.y = 1.0 - uv.y;
+	}
+	out_color = texture(u_texture, uv);
+}
+`;
+
+export const FX_mirror = defineImageEffectorFx({
+	id: 'mirror' as const,
+	name: i18n.ts._imageEffector._fxs.mirror,
+	shader,
+	params: {
+		h: {
+			type: 'number:enum' as const,
+			enum: [{ value: -1, label: '<-' }, { value: 0, label: '|' }, { value: 1, label: '->' }],
+			default: -1,
+		},
+		v: {
+			type: 'number:enum' as const,
+			enum: [{ value: -1, label: '^' }, { value: 0, label: '-' }, { value: 1, label: 'v' }],
+			default: 0,
+		},
+	},
+	main: ({ gl, program, params, preTexture }) => {
+		gl.activeTexture(gl.TEXTURE0);
+		gl.bindTexture(gl.TEXTURE_2D, preTexture);
+		const u_texture = gl.getUniformLocation(program, 'u_texture');
+		gl.uniform1i(u_texture, 0);
+
+		const u_h = gl.getUniformLocation(program, 'u_h');
+		gl.uniform1i(u_h, params.h);
+
+		const u_v = gl.getUniformLocation(program, 'u_v');
+		gl.uniform1i(u_v, params.v);
+	},
+});