diff --git a/src/components/Chat/Root/Conversation/index.tsx b/src/components/Chat/Root/Conversation/index.tsx
index a60cbbb..8d2770d 100644
--- a/src/components/Chat/Root/Conversation/index.tsx
+++ b/src/components/Chat/Root/Conversation/index.tsx
@@ -17,7 +17,7 @@ import CopyAfterIcon from '@/public/icon/copyAfterIcon';
 import CopyBeforeIcon from '@/public/icon/copyBeforeIcon';
 import { useLingui } from '@lingui/react/macro';
 import { marked } from 'marked';
-import DOMPurify from 'dompurify';
+import { safeSanitize } from '@/utils/sanitize';
 import { CreatePageBtn } from '@/components/Chat/CreatePageBtn';
 
 export function Conversation({ onLeaveBottom }: { onLeaveBottom: (isLeave: boolean) => void }) {
@@ -150,7 +150,7 @@ function NoticeMessage({ id, name, children }: { id: string; name: string; child
     return (
         <Root id={id}>
             <Name name={name}></Name>
-            <div dangerouslySetInnerHTML={{ __html: DOMPurify.sanitize(children) }}></div>
+            <div dangerouslySetInnerHTML={{ __html: safeSanitize(children) }}></div>
         </Root>
     );
 }
@@ -186,7 +186,7 @@ function SimilarityStartMessage({
     return (
         <Root id={id}>
             <Name name={name} justifyContent="start"></Name>
-            <div dangerouslySetInnerHTML={{ __html: DOMPurify.sanitize(children ?? '') }}></div>
+            <div dangerouslySetInnerHTML={{ __html: safeSanitize(children ?? '') }}></div>
         </Root>
     );
 }
@@ -251,7 +251,7 @@ function LLMResponseMessage({
         if (!content) return '';
         // marked로 마크다운을 HTML로 변환하고 DOMPurify로 안전하게 정화
         const rawHtml = marked(content, markedOptions) as string;
-        return DOMPurify.sanitize(rawHtml);
+        return safeSanitize(rawHtml);
     };
 
     return (
diff --git a/src/components/common/BlockNoteEditor/EditorLoadingErrorFallback.tsx b/src/components/common/BlockNoteEditor/EditorLoadingErrorFallback.tsx
index 629c43d..04ab176 100644
--- a/src/components/common/BlockNoteEditor/EditorLoadingErrorFallback.tsx
+++ b/src/components/common/BlockNoteEditor/EditorLoadingErrorFallback.tsx
@@ -1,6 +1,6 @@
 import React, { useMemo } from 'react';
 import s from './EditorLoadingErrorFallback.module.css';
-import DOMPurify from 'dompurify';
+import { safeSanitize } from '@/utils/sanitize';
 import { useLingui } from '@lingui/react/macro';
 
 interface EditorLoadingErrorFallbackProps {
@@ -11,7 +11,7 @@ export function EditorLoadingErrorFallback({ html }: EditorLoadingErrorFallbackP
     const { t } = useLingui();
 
     const sanitizedHtml = useMemo(() => {
-        return DOMPurify.sanitize(html);
+        return safeSanitize(html);
     }, [html]);
 
     return (
diff --git a/src/components/common/ConfirmDialog/index.tsx b/src/components/common/ConfirmDialog/index.tsx
index 480b1d6..fe83e27 100644
--- a/src/components/common/ConfirmDialog/index.tsx
+++ b/src/components/common/ConfirmDialog/index.tsx
@@ -1,7 +1,7 @@
 import React, { useEffect, useRef, useState } from 'react';
 import { useAtom } from 'jotai';
 import { useLingui } from '@lingui/react/macro';
-import DOMPurify from 'dompurify';
+import { safeSanitize } from '@/utils/sanitize';
 import { confirmState, closeConfirmState } from '@/lib/jotai'; // 경로는 프로젝트 설정에 맞게 조정하세요.
 import Dialog from '@mui/material/Dialog';
 import DialogActions from '@mui/material/DialogActions';
@@ -64,7 +64,7 @@ export default function ConfirmDialog() {
 
                 // 내용물의 실제 너비를 계산하기 위해 텍스트를 복제하여 임시로 측정
                 const tempSpan = document.createElement('span');
-                tempSpan.innerHTML = DOMPurify.sanitize(confirm.message);
+                tempSpan.innerHTML = safeSanitize(confirm.message);
                 tempSpan.style.position = 'absolute';
                 tempSpan.style.visibility = 'hidden';
                 tempSpan.style.whiteSpace = 'nowrap';
@@ -138,7 +138,7 @@ export default function ConfirmDialog() {
                         ref={contentRef}
                         className={`${s.content} ${isCentered ? s.contentCentered : ''} ${isContentVisible ? s.visible : s.hidden}`}
                         dangerouslySetInnerHTML={{
-                            __html: DOMPurify.sanitize(confirm.message),
+                            __html: safeSanitize(confirm.message),
                         }}
                     ></div>
                     {confirm.customContent && (
diff --git a/src/components/common/ContentListMessage/index.tsx b/src/components/common/ContentListMessage/index.tsx
index 1a35773..af17318 100644
--- a/src/components/common/ContentListMessage/index.tsx
+++ b/src/components/common/ContentListMessage/index.tsx
@@ -1,6 +1,6 @@
 import { useAtom } from 'jotai';
 import { contentListMessageState } from '@/lib/jotai';
-import DOMPurify from 'dompurify';
+import { safeSanitize } from '@/utils/sanitize';
 import { useTheme } from '@mui/material/styles';
 
 export default function ContentListMessage() {
@@ -42,7 +42,7 @@ export default function ContentListMessage() {
             >
                 <div
                     dangerouslySetInnerHTML={{
-                        __html: DOMPurify.sanitize(contentListMessage),
+                        __html: safeSanitize(contentListMessage),
                     }}
                 ></div>
             </div>
diff --git a/src/components/layout/bottom/agreement/docDialog.tsx b/src/components/layout/bottom/agreement/docDialog.tsx
index a13c3da..bb2b6cb 100644
--- a/src/components/layout/bottom/agreement/docDialog.tsx
+++ b/src/components/layout/bottom/agreement/docDialog.tsx
@@ -4,7 +4,7 @@ import DialogActions from '@mui/material/DialogActions';
 import DialogContent from '@mui/material/DialogContent';
 import DialogTitle from '@mui/material/DialogTitle';
 import { useLingui } from '@lingui/react/macro';
-import DOMPurify from 'dompurify';
+import { safeSanitize } from '@/utils/sanitize';
 import s from './docDialog.module.css';
 
 export function DocsDialog({
@@ -24,7 +24,7 @@ export function DocsDialog({
         <Dialog open={open} onClose={onClose} className={s.root}>
             <DialogTitle>{title}</DialogTitle>
             <DialogContent
-                dangerouslySetInnerHTML={{ __html: DOMPurify.sanitize(body) }}
+                dangerouslySetInnerHTML={{ __html: safeSanitize(body) }}
             ></DialogContent>
             <DialogActions>
                 <Button variant="contained" onClick={onClose} color="secondary">
diff --git a/src/utils/sanitize.ts b/src/utils/sanitize.ts
new file mode 100644
index 0000000..7e030b2
--- /dev/null
+++ b/src/utils/sanitize.ts
@@ -0,0 +1,18 @@
+import DOMPurify from 'dompurify';
+
+export const safeSanitize = (content: string, options?: any): string => {
+    if (typeof window !== 'undefined') {
+        if (DOMPurify.sanitize) {
+            return DOMPurify.sanitize(content, options) as unknown as string;
+        }
+        // Handle case where DOMPurify is a factory function (e.g. in some environments)
+        if (typeof DOMPurify === 'function') {
+            const factory = DOMPurify as any;
+            const sanitizer = factory(window);
+            if (sanitizer && typeof sanitizer.sanitize === 'function') {
+                return sanitizer.sanitize(content, options) as unknown as string;
+            }
+        }
+    }
+    return '';
+};