diff --git a/invokeai/frontend/web/src/common/hooks/useImageUploadButton.tsx b/invokeai/frontend/web/src/common/hooks/useImageUploadButton.tsx
index ca65931a921..d0445fb61aa 100644
--- a/invokeai/frontend/web/src/common/hooks/useImageUploadButton.tsx
+++ b/invokeai/frontend/web/src/common/hooks/useImageUploadButton.tsx
@@ -128,7 +128,11 @@ export const useImageUploadButton = ({ onUpload, isDisabled, allowMultiple }: Us
     getInputProps: getUploadInputProps,
     open: openUploader,
   } = useDropzone({
-    accept: { 'image/png': ['.png'], 'image/jpeg': ['.jpg', '.jpeg', '.png'] },
+    accept: {
+      'image/png': ['.png'],
+      'image/jpeg': ['.jpg', '.jpeg', '.png'],
+      'image/webp': ['.webp'],
+    },
     onDropAccepted,
     onDropRejected,
     disabled: isDisabled,
diff --git a/invokeai/frontend/web/src/features/dnd/FullscreenDropzone.tsx b/invokeai/frontend/web/src/features/dnd/FullscreenDropzone.tsx
index d922faa0965..18732a39cff 100644
--- a/invokeai/frontend/web/src/features/dnd/FullscreenDropzone.tsx
+++ b/invokeai/frontend/web/src/features/dnd/FullscreenDropzone.tsx
@@ -22,8 +22,8 @@ import { useBoardName } from 'services/api/hooks/useBoardName';
 import type { UploadImageArg } from 'services/api/types';
 import { z } from 'zod';
 
-const ACCEPTED_IMAGE_TYPES = ['image/png', 'image/jpg', 'image/jpeg'];
-const ACCEPTED_FILE_EXTENSIONS = ['.png', '.jpg', '.jpeg'];
+const ACCEPTED_IMAGE_TYPES = ['image/png', 'image/jpg', 'image/jpeg', 'image/webp'];
+const ACCEPTED_FILE_EXTENSIONS = ['.png', '.jpg', '.jpeg', '.webp'];
 
 // const MAX_IMAGE_SIZE = 4; //In MegaBytes
 // const sizeInMB = (sizeInBytes: number, decimalsNum = 2) => {
diff --git a/invokeai/frontend/web/src/features/modelManagerV2/subpanels/ModelPanel/Fields/ModelImageUpload.tsx b/invokeai/frontend/web/src/features/modelManagerV2/subpanels/ModelPanel/Fields/ModelImageUpload.tsx
index 4d2a3fe3200..d6ec53e33da 100644
--- a/invokeai/frontend/web/src/features/modelManagerV2/subpanels/ModelPanel/Fields/ModelImageUpload.tsx
+++ b/invokeai/frontend/web/src/features/modelManagerV2/subpanels/ModelPanel/Fields/ModelImageUpload.tsx
@@ -72,7 +72,11 @@ const ModelImageUpload = ({ model_key, model_image }: Props) => {
   }, [model_key, t, deleteModelImage]);
 
   const { getInputProps, getRootProps } = useDropzone({
-    accept: { 'image/png': ['.png'], 'image/jpeg': ['.jpg', '.jpeg', '.png'] },
+    accept: {
+      'image/png': ['.png'],
+      'image/jpeg': ['.jpg', '.jpeg', '.png'],
+      'image/webp': ['.webp'],
+    },
     onDropAccepted,
     noDrag: true,
     multiple: false,