diff --git a/open-api/immich-openapi-specs.json b/open-api/immich-openapi-specs.json
index e73760a3de..2417e0b342 100644
--- a/open-api/immich-openapi-specs.json
+++ b/open-api/immich-openapi-specs.json
@@ -5977,6 +5977,55 @@
         "x-immich-state": "Alpha"
       }
     },
+    "/duplicates/resolve-all": {
+      "post": {
+        "description": "Resolve all duplicate groups by keeping the suggested asset in each group and deleting/trashing duplicates.",
+        "operationId": "resolveAllDuplicates",
+        "parameters": [],
+        "responses": {
+          "200": {
+            "content": {
+              "application/json": {
+                "schema": {
+                  "items": {
+                    "$ref": "#/components/schemas/BulkIdResponseDto"
+                  },
+                  "type": "array"
+                }
+              }
+            },
+            "description": ""
+          }
+        },
+        "security": [
+          {
+            "bearer": []
+          },
+          {
+            "cookie": []
+          },
+          {
+            "api_key": []
+          }
+        ],
+        "summary": "Resolve all duplicate groups",
+        "tags": [
+          "Duplicates"
+        ],
+        "x-immich-history": [
+          {
+            "version": "v3.0.0",
+            "state": "Added"
+          },
+          {
+            "version": "v3.0.0",
+            "state": "Alpha"
+          }
+        ],
+        "x-immich-permission": "duplicate.delete",
+        "x-immich-state": "Alpha"
+      }
+    },
     "/duplicates/{id}": {
       "delete": {
         "description": "Dismiss a duplicate group by its ID, unlinking all assets in the group without deleting them.",
diff --git a/packages/sdk/src/fetch-client.ts b/packages/sdk/src/fetch-client.ts
index 8983de8ef7..2c3dc5d4ef 100644
--- a/packages/sdk/src/fetch-client.ts
+++ b/packages/sdk/src/fetch-client.ts
@@ -4727,6 +4727,18 @@ export function resolveDuplicates({ duplicateResolveDto }: {
         body: duplicateResolveDto
     })));
 }
+/**
+ * Resolve all duplicate groups
+ */
+export function resolveAllDuplicates(opts?: Oazapfts.RequestOpts) {
+    return oazapfts.ok(oazapfts.fetchJson<{
+        status: 200;
+        data: BulkIdResponseDto[];
+    }>("/duplicates/resolve-all", {
+        ...opts,
+        method: "POST"
+    }));
+}
 /**
  * Dismiss a duplicate group
  */
diff --git a/server/src/controllers/duplicate.controller.ts b/server/src/controllers/duplicate.controller.ts
index 6502c3b2a9..aa38b3fbb9 100644
--- a/server/src/controllers/duplicate.controller.ts
+++ b/server/src/controllers/duplicate.controller.ts
@@ -60,4 +60,17 @@ export class DuplicateController {
   resolveDuplicates(@Auth() auth: AuthDto, @Body() dto: DuplicateResolveDto): Promise<BulkIdResponseDto[]> {
     return this.service.resolve(auth, dto);
   }
+
+  @Post('resolve-all')
+  @HttpCode(HttpStatus.OK)
+  @Authenticated({ permission: Permission.DuplicateDelete })
+  @Endpoint({
+    summary: 'Resolve all duplicate groups',
+    description:
+      'Resolve all duplicate groups by keeping the suggested asset in each group and deleting/trashing duplicates.',
+    history: new HistoryBuilder().added('v3.0.0').alpha('v3.0.0'),
+  })
+  resolveAllDuplicates(@Auth() auth: AuthDto): Promise<BulkIdResponseDto[]> {
+    return this.service.resolveAll(auth);
+  }
 }
diff --git a/server/src/services/duplicate.service.spec.ts b/server/src/services/duplicate.service.spec.ts
index 6e6f50d2f9..ae4031ecde 100644
--- a/server/src/services/duplicate.service.spec.ts
+++ b/server/src/services/duplicate.service.spec.ts
@@ -215,6 +215,53 @@ describe(DuplicateService.name, () => {
     });
   });
 
+  describe('resolveAll (via resolve)', () => {
+    it('should keep the suggested asset and trash the rest of each group', async () => {
+      const smallAsset = AssetFactory.from().exif({ fileSizeInByte: 1000 }).build();
+      const largeAsset = AssetFactory.from().exif({ fileSizeInByte: 5000 }).build();
+      const group = {
+        duplicateId: 'group-1',
+        assets: [getForDuplicate(smallAsset), getForDuplicate(largeAsset)],
+      };
+      mocks.duplicateRepository.cleanupSingletonGroups.mockResolvedValue();
+      mocks.duplicateRepository.getAll.mockResolvedValue([group]);
+      mocks.access.duplicate.checkOwnerAccess.mockResolvedValue(new Set(['group-1']));
+      mocks.duplicateRepository.get.mockResolvedValue(group);
+      mocks.access.asset.checkOwnerAccess.mockResolvedValue(new Set([smallAsset.id]));
+      mocks.album.getByAssetIds.mockResolvedValue(new Map());
+      mocks.systemMetadata.get.mockResolvedValue({});
+
+      await expect(sut.resolveAll(authStub.admin)).resolves.toEqual([{ id: 'group-1', success: true }]);
+    });
+
+    it('should resolve multiple duplicate groups', async () => {
+      const group1Small = AssetFactory.from().exif({ fileSizeInByte: 1000 }).build();
+      const group1Large = AssetFactory.from().exif({ fileSizeInByte: 5000 }).build();
+      const group2Small = AssetFactory.from().exif({ fileSizeInByte: 500 }).build();
+      const group2Large = AssetFactory.from().exif({ fileSizeInByte: 2000 }).build();
+      const group1 = {
+        duplicateId: 'group-1',
+        assets: [getForDuplicate(group1Small), getForDuplicate(group1Large)],
+      };
+      const group2 = {
+        duplicateId: 'group-2',
+        assets: [getForDuplicate(group2Small), getForDuplicate(group2Large)],
+      };
+      mocks.duplicateRepository.cleanupSingletonGroups.mockResolvedValue();
+      mocks.duplicateRepository.getAll.mockResolvedValue([group1, group2]);
+      mocks.access.duplicate.checkOwnerAccess.mockResolvedValue(new Set(['group-1', 'group-2']));
+      mocks.duplicateRepository.get.mockResolvedValueOnce(group1).mockResolvedValueOnce(group2);
+      mocks.access.asset.checkOwnerAccess.mockResolvedValue(new Set(['trashed-asset']));
+      mocks.album.getByAssetIds.mockResolvedValue(new Map());
+      mocks.systemMetadata.get.mockResolvedValue({});
+
+      await expect(sut.resolveAll(authStub.admin)).resolves.toEqual([
+        { id: 'group-1', success: true },
+        { id: 'group-2', success: true },
+      ]);
+    });
+  });
+
   describe('resolveGroup (via resolve)', () => {
     it('should fail if duplicate group not found', async () => {
       mocks.access.duplicate.checkOwnerAccess.mockResolvedValue(new Set(['missing-id']));
diff --git a/server/src/services/duplicate.service.ts b/server/src/services/duplicate.service.ts
index 7ea300f88a..517fbc9cd1 100644
--- a/server/src/services/duplicate.service.ts
+++ b/server/src/services/duplicate.service.ts
@@ -110,6 +110,22 @@ export class DuplicateService extends BaseService {
     return results;
   }
 
+  async resolveAll(auth: AuthDto): Promise<BulkIdResponseDto[]> {
+    await this.duplicateRepository.cleanupSingletonGroups(auth.user.id);
+
+    const duplicates = await this.duplicateRepository.getAll(auth.user.id);
+
+    const groups = duplicates.map(({ duplicateId, assets }) => {
+      const mappedAssets = assets.map((asset) => mapAsset(asset, { auth }));
+      const keepAssetIds = suggestDuplicateKeepAssetIds(mappedAssets);
+      const keepAssetIdSet = new Set(keepAssetIds);
+      const trashAssetIds = mappedAssets.map((asset) => asset.id).filter((id) => !keepAssetIdSet.has(id));
+      return { duplicateId, keepAssetIds, trashAssetIds };
+    });
+
+    return this.resolve(auth, { groups });
+  }
+
   private async resolveGroup(auth: AuthDto, group: DuplicateResolveGroupDto): Promise<BulkIdResponseDto> {
     const { duplicateId, keepAssetIds, trashAssetIds } = group;