diff --git a/locales/index.d.ts b/locales/index.d.ts
index 0343c4ae99..7899d3e388 100644
--- a/locales/index.d.ts
+++ b/locales/index.d.ts
@@ -12105,6 +12105,10 @@ export interface Locale extends ILocale {
          * 点グリッド
          */
         "dottedGrid": string;
+        /**
+         * チェッカー
+         */
+        "checker": string;
     };
     "_imageEffector": {
         /**
diff --git a/locales/ja-JP.yml b/locales/ja-JP.yml
index d5f58010fe..19229e8738 100644
--- a/locales/ja-JP.yml
+++ b/locales/ja-JP.yml
@@ -3241,6 +3241,7 @@ _watermarkEditor:
   stripeFrequency: "ラインの数"
   angle: "角度"
   dottedGrid: "点グリッド"
+  checker: "チェッカー"
 
 _imageEffector:
   title: "エフェクト"
diff --git a/packages/frontend/src/components/MkWatermarkEditorDialog.Layer.vue b/packages/frontend/src/components/MkWatermarkEditorDialog.Layer.vue
index 705d2f62ab..d670c7da21 100644
--- a/packages/frontend/src/components/MkWatermarkEditorDialog.Layer.vue
+++ b/packages/frontend/src/components/MkWatermarkEditorDialog.Layer.vue
@@ -54,6 +54,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 			<template #label>{{ i18n.ts._watermarkEditor.repeat }}</template>
 		</MkSwitch>
 	</template>
+
 	<template v-else-if="layer.type === 'image'">
 		<MkButton inline rounded primary @click="chooseFile">{{ i18n.ts.selectFile }}</MkButton>
 
@@ -105,6 +106,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 			<template #label>{{ i18n.ts._watermarkEditor.cover }}</template>
 		</MkSwitch>
 	</template>
+
 	<template v-else-if="layer.type === 'stripe'">
 		<MkRange
 			v-model="layer.frequency"
@@ -147,12 +149,109 @@ SPDX-License-Identifier: AGPL-3.0-only
 			<template #label>{{ i18n.ts._watermarkEditor.opacity }}</template>
 		</MkRange>
 	</template>
+
+	<template v-else-if="layer.type === 'dottedGrid'">
+		<MkRange
+			v-model="layer.angle"
+			:min="-1"
+			:max="1"
+			:step="0.01"
+			continuousUpdate
+		>
+			<template #label>{{ i18n.ts._watermarkEditor.angle }}</template>
+		</MkRange>
+
+		<MkRange
+			v-model="layer.scale"
+			:min="0"
+			:max="10"
+			:step="0.01"
+			continuousUpdate
+		>
+			<template #label>{{ i18n.ts._watermarkEditor.scale }}</template>
+		</MkRange>
+
+		<MkRange
+			v-model="layer.minorRadius"
+			:min="0"
+			:max="1"
+			:step="0.01"
+			:textConverter="(v) => (v * 100).toFixed(1) + '%'"
+			continuousUpdate
+		>
+			<template #label>{{ i18n.ts._watermarkEditor.gridMinorRadius }}</template>
+		</MkRange>
+
+		<MkRange
+			v-model="layer.minorDivisions"
+			:min="0"
+			:max="16"
+			:step="1"
+			continuousUpdate
+		>
+			<template #label>{{ i18n.ts._watermarkEditor.gridMinorDivisions }}</template>
+		</MkRange>
+
+		<MkRange
+			v-model="layer.majorOpacity"
+			:min="0"
+			:max="1"
+			:step="0.01"
+			:textConverter="(v) => (v * 100).toFixed(1) + '%'"
+			continuousUpdate
+		>
+			<template #label>{{ i18n.ts._watermarkEditor.gridMajorOpacity }}</template>
+		</MkRange>
+
+		<MkRange
+			v-model="layer.minorOpacity"
+			:min="0"
+			:max="1"
+			:step="0.01"
+			:textConverter="(v) => (v * 100).toFixed(1) + '%'"
+			continuousUpdate
+		>
+			<template #label>{{ i18n.ts._watermarkEditor.gridMinorOpacity }}</template>
+		</MkRange>
+	</template>
+
+	<template v-else-if="layer.type === 'checker'">
+		<MkRange
+			v-model="layer.angle"
+			:min="-1"
+			:max="1"
+			:step="0.01"
+			continuousUpdate
+		>
+			<template #label>{{ i18n.ts._watermarkEditor.angle }}</template>
+		</MkRange>
+
+		<MkRange
+			v-model="layer.scale"
+			:min="0"
+			:max="10"
+			:step="0.01"
+			continuousUpdate
+		>
+			<template #label>{{ i18n.ts._watermarkEditor.scale }}</template>
+		</MkRange>
+
+		<MkRange
+			v-model="layer.opacity"
+			:min="0"
+			:max="1"
+			:step="0.01"
+			:textConverter="(v) => (v * 100).toFixed(1) + '%'"
+			continuousUpdate
+		>
+			<template #label>{{ i18n.ts._watermarkEditor.opacity }}</template>
+		</MkRange>
+	</template>
 </div>
 </template>
 
 <script setup lang="ts">
 import { ref, useTemplateRef, watch, onMounted, onUnmounted } from 'vue';
-import type { ImageEffectorLayer } from '@/utility/image-effector/ImageEffector.js';
 import type { WatermarkPreset } from '@/utility/watermark.js';
 import { i18n } from '@/i18n.js';
 import MkSelect from '@/components/MkSelect.vue';
diff --git a/packages/frontend/src/components/MkWatermarkEditorDialog.vue b/packages/frontend/src/components/MkWatermarkEditorDialog.vue
index d90b92fdfe..4f92b03a4f 100644
--- a/packages/frontend/src/components/MkWatermarkEditorDialog.vue
+++ b/packages/frontend/src/components/MkWatermarkEditorDialog.vue
@@ -47,6 +47,8 @@ SPDX-License-Identifier: AGPL-3.0-only
 								<div v-if="layer.type === 'text'">{{ i18n.ts._watermarkEditor.text }}</div>
 								<div v-if="layer.type === 'image'">{{ i18n.ts._watermarkEditor.image }}</div>
 								<div v-if="layer.type === 'stripe'">{{ i18n.ts._watermarkEditor.stripe }}</div>
+								<div v-if="layer.type === 'dottedGrid'">{{ i18n.ts._watermarkEditor.dottedGrid }}</div>
+								<div v-if="layer.type === 'checker'">{{ i18n.ts._watermarkEditor.checker }}</div>
 							</template>
 							<template #footer>
 								<div class="_buttons">
@@ -127,6 +129,33 @@ function createStripeLayer(): WatermarkPreset['layers'][number] {
 	};
 }
 
+function createDottedGridLayer(): WatermarkPreset['layers'][number] {
+	return {
+		id: genId(),
+		type: 'dottedGrid',
+		angle: 0.5,
+		scale: 3,
+		majorRadius: 0.1,
+		minorRadius: 0.25,
+		majorOpacity: 0.75,
+		minorOpacity: 0.5,
+		minorDivisions: 4,
+		black: false,
+		opacity: 0.75,
+	};
+}
+
+function createCheckerLayer(): WatermarkPreset['layers'][number] {
+	return {
+		id: genId(),
+		type: 'checker',
+		angle: 0.5,
+		scale: 3,
+		black: false,
+		opacity: 0.75,
+	};
+}
+
 const props = defineProps<{
 	preset?: WatermarkPreset | null;
 	image?: File | null;
@@ -301,6 +330,16 @@ function addLayer(ev: MouseEvent) {
 		action: () => {
 			preset.layers.push(createStripeLayer());
 		},
+	}, {
+		text: i18n.ts._watermarkEditor.dottedGrid,
+		action: () => {
+			preset.layers.push(createDottedGridLayer());
+		},
+	}, {
+		text: i18n.ts._watermarkEditor.checker,
+		action: () => {
+			preset.layers.push(createCheckerLayer());
+		},
 	}], ev.currentTarget ?? ev.target);
 }
 
diff --git a/packages/frontend/src/utility/watermark.ts b/packages/frontend/src/utility/watermark.ts
index accb967f89..af1483a170 100644
--- a/packages/frontend/src/utility/watermark.ts
+++ b/packages/frontend/src/utility/watermark.ts
@@ -5,6 +5,8 @@
 
 import { FX_watermarkPlacement } from './image-effector/fxs/watermarkPlacement.js';
 import { FX_stripe } from './image-effector/fxs/stripe.js';
+import { FX_dottedGrid } from './image-effector/fxs/dottedGrid.js';
+import { FX_checker } from './image-effector/fxs/checker.js';
 import type { ImageEffectorLayer } from '@/utility/image-effector/ImageEffector.js';
 import { ImageEffector } from '@/utility/image-effector/ImageEffector.js';
 
@@ -39,6 +41,25 @@ export type WatermarkPreset = {
 		threshold: number;
 		black: boolean;
 		opacity: number;
+	} | {
+		id: string;
+		type: 'dottedGrid';
+		angle: number;
+		scale: number;
+		majorRadius: number;
+		majorOpacity: number;
+		minorDivisions: number;
+		minorRadius: number;
+		minorOpacity: number;
+		black: boolean;
+		opacity: number;
+	} | {
+		id: string;
+		type: 'checker';
+		angle: number;
+		scale: number;
+		black: boolean;
+		opacity: number;
 	})[];
 };
 
@@ -57,7 +78,7 @@ export class WatermarkRenderer {
 			renderWidth: options.renderWidth,
 			renderHeight: options.renderHeight,
 			image: options.image,
-			fxs: [FX_watermarkPlacement, FX_stripe],
+			fxs: [FX_watermarkPlacement, FX_stripe, FX_dottedGrid, FX_checker],
 		});
 	}
 
@@ -109,6 +130,33 @@ export class WatermarkRenderer {
 						opacity: layer.opacity,
 					},
 				};
+			} else if (layer.type === 'dottedGrid') {
+				return {
+					fxId: 'dottedGrid',
+					id: layer.id,
+					params: {
+						angle: layer.angle,
+						scale: layer.scale,
+						majorRadius: layer.majorRadius,
+						majorOpacity: layer.majorOpacity,
+						minorDivisions: layer.minorDivisions,
+						minorRadius: layer.minorRadius,
+						minorOpacity: layer.minorOpacity,
+						black: layer.black,
+						opacity: layer.opacity,
+					},
+				};
+			} else if (layer.type === 'checker') {
+				return {
+					fxId: 'checker',
+					id: layer.id,
+					params: {
+						angle: layer.angle,
+						scale: layer.scale,
+						black: layer.black,
+						opacity: layer.opacity,
+					},
+				};
 			}
 		});
 	}