diff --git a/frontend/src/components/dashboard/ConfirmEnvOverwriteModal.tsx b/frontend/src/components/dashboard/ConfirmEnvOverwriteModal.tsx
new file mode 100644
index 000000000..d3fad6511
--- /dev/null
+++ b/frontend/src/components/dashboard/ConfirmEnvOverwriteModal.tsx
@@ -0,0 +1,42 @@
+import { Button, Modal, ModalContent } from '../v2';
+
+type Props = {
+  isOpen: boolean;
+  onClose: () => void;
+  onOverwriteConfirm: (preserve: 'old' | 'new') => void;
+  duplicateKeys: string[];
+};
+
+const ConfirmEnvOverwriteModal = ({
+  isOpen,
+  onClose,
+  duplicateKeys,
+  onOverwriteConfirm
+}: Props): JSX.Element => {
+  return (
+    <Modal isOpen={isOpen}>
+      <ModalContent
+        title="Duplicate Secrets"
+        footerContent={
+          <div className="flex items-center gap-4">
+            <Button colorSchema="primary" onClick={() => onOverwriteConfirm('old')}>
+              Keep Old
+            </Button>
+            <Button colorSchema="danger" onClick={() => onOverwriteConfirm('new')}>
+              Overwrite
+            </Button>
+          </div>
+        }
+        onClose={onClose}
+      >
+        <div className="flex flex-col gap-2">
+          <p className='text-gray-400'>Your file contains the following duplicate secrets:</p>
+          <p className="text-sm text-gray-500">{duplicateKeys.join(', ')}</p>
+          <p className='text-md text-gray-400'>Are you sure you want to overwrite these secrets?</p>
+        </div>
+      </ModalContent>
+    </Modal>
+  );
+};
+
+export default ConfirmEnvOverwriteModal;
diff --git a/frontend/src/components/dashboard/DashboardInputField.tsx b/frontend/src/components/dashboard/DashboardInputField.tsx
index 5b8cf9b69..d64658b67 100644
--- a/frontend/src/components/dashboard/DashboardInputField.tsx
+++ b/frontend/src/components/dashboard/DashboardInputField.tsx
@@ -231,7 +231,8 @@ function inputPropsAreEqual(prev: DashboardInputFieldProps, next: DashboardInput
     prev.position === next.position &&
     prev.blurred === next.blurred &&
     prev.overrideEnabled === next.overrideEnabled &&
-    prev.isDuplicate === next.isDuplicate 
+    prev.isDuplicate === next.isDuplicate &&
+    prev.isSideBarOpen === next.isSideBarOpen
   );
 }
 
diff --git a/frontend/src/components/v2/Button/Button.tsx b/frontend/src/components/v2/Button/Button.tsx
index e16e09128..df12c25f7 100644
--- a/frontend/src/components/v2/Button/Button.tsx
+++ b/frontend/src/components/v2/Button/Button.tsx
@@ -158,7 +158,7 @@ export const Button = forwardRef<HTMLButtonElement, ButtonProps>(
           className={twMerge(
             'shrink-0 cursor-pointer transition-all',
             loadingToggleClass,
-            size === 'xs' ? 'ml-1' : 'ml-2'
+            size === 'xs' ? 'ml-1' : 'ml-3'
           )}
         >
           {rightIcon}
diff --git a/frontend/src/pages/dashboard/[id].tsx b/frontend/src/pages/dashboard/[id].tsx
index 2fbcaa7da..1b668e6e4 100644
--- a/frontend/src/pages/dashboard/[id].tsx
+++ b/frontend/src/pages/dashboard/[id].tsx
@@ -24,6 +24,7 @@ import Button from '@app/components/basic/buttons/Button';
 import ListBox from '@app/components/basic/Listbox';
 import BottonRightPopup from '@app/components/basic/popups/BottomRightPopup';
 import { useNotificationContext } from '@app/components/context/Notifications/NotificationProvider';
+import ConfirmEnvOverwriteModal from '@app/components/dashboard/ConfirmEnvOverwriteModal';
 import DownloadSecretMenu from '@app/components/dashboard/DownloadSecretsMenu';
 import DropZone from '@app/components/dashboard/DropZone';
 import KeyPair from '@app/components/dashboard/KeyPair';
@@ -131,6 +132,7 @@ export default function Dashboard() {
   const [snapshotData, setSnapshotData] = useState<SnapshotProps>();
   const [numSnapshots, setNumSnapshots] = useState<number>();
   const [saveLoading, setSaveLoading] = useState(false);
+  const [dropZoneData, setDropZoneData] = useState<SecretDataProps[]>();
   const [projectTags, setProjectTags] = useState<Tag[]>([]);
 
   const { t } = useTranslation();
@@ -546,11 +548,33 @@ export default function Dashboard() {
     return undefined;
   };
 
-  const addData = (newData: SecretDataProps[]) => {
-    setData(data!.concat(newData));
+  const addDataWithMerge = (newData: SecretDataProps[], preserve?: 'old' | 'new') => {
+    setData((oldData) => {
+      let filteredOldData = oldData!;
+      let filteredNewData = newData;
+      if (preserve === 'new')
+        filteredOldData = oldData!.filter(
+          (oldDataPoint) => !newData.find((newDataPoint) => newDataPoint.key === oldDataPoint.key)
+        );
+      if (preserve === 'old')
+        filteredNewData = newData.filter(
+          (newDataPoint) => !oldData?.find((oldDataPoint) => oldDataPoint.key === newDataPoint.key)
+        );
+      return filteredOldData.concat(filteredNewData);
+    });
     setButtonReady(true);
   };
 
+  const addData = (newData: SecretDataProps[]) => {
+    if (
+      newData.some((newDataPoint) => data?.find((dataPoint) => dataPoint.key === newDataPoint.key)) // if newData contains duplicates
+    ) {
+      setDropZoneData(newData);
+      return;
+    }
+    addDataWithMerge(newData);
+  };
+
   const changeBlurred = () => {
     setBlurred(!blurred);
   };
@@ -568,7 +592,22 @@ export default function Dashboard() {
         <meta property="og:title" content={String(t('dashboard:og-title'))} />
         <meta name="og:description" content={String(t('dashboard:og-description'))} />
       </Head>
-      <div className="flex flex-row h-full dark:[color-scheme:dark]">
+      <div className="flex flex-row h-full">
+        <ConfirmEnvOverwriteModal
+          isOpen={!!dropZoneData}
+          onClose={() => setDropZoneData(undefined)}
+          onOverwriteConfirm={(preserve) => {
+            addDataWithMerge(dropZoneData!, preserve);
+            setDropZoneData(undefined);
+          }}
+          duplicateKeys={
+            dropZoneData
+              ?.filter((newDataPoint) =>
+                data?.find((dataPoint) => dataPoint.key === newDataPoint.key)
+              )
+              .map((duplicate) => duplicate.key) ?? []
+          }
+        />
         <div className="w-full max-h-96 pb-2 dark:[color-scheme:dark]">
           <NavHeader pageName={t('dashboard:title')} isProjectRelated />
           {checkDocsPopUpVisible && (