diff --git a/package.json b/package.json
index 130550a..4c579f5 100644
--- a/package.json
+++ b/package.json
@@ -49,6 +49,7 @@
     "markdown-it-shikiji": "^0.10.2",
     "mermaid": "^11.12.1",
     "nanoid": "^5.1.6",
+    "node-diff3": "^3.2.1",
     "notyf": "^3.10.0",
     "pastel-color": "^1.0.3",
     "pinia": "^2.2.6",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 5922d8e..438e62c 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -104,6 +104,9 @@ importers:
       nanoid:
         specifier: ^5.1.6
         version: 5.1.6
+      node-diff3:
+        specifier: ^3.2.1
+        version: 3.2.1
       notyf:
         specifier: ^3.10.0
         version: 3.10.0
@@ -5130,6 +5133,10 @@ packages:
   node-addon-api@7.1.1:
     resolution: {integrity: sha512-5m3bsyrjFWE1xf7nz7YXdN4udnVtXK6/Yfgn5qnahL6bCkf2yKt4k3nuTKAtT4r3IG8JNR2ncsIMdZuAzJjHQQ==}
 
+  node-diff3@3.2.1:
+    resolution: {integrity: sha512-eKZcJ8RtMQ3cIaA15EgmtwG927fYnRlhtdA4Q9HAcCpAZPQhhU2XptnTH9GeAkMiX2bAXxlJSAFa9shFbztPgw==}
+    engines: {bun: '>=1.3.10'}
+
   node-fetch@2.6.12:
     resolution: {integrity: sha512-C/fGU2E8ToujUivIO0H+tpQ6HWo4eEmchoPIoXtxCrVghxdKq+QOHqEZW7tuP3KlV3bC8FRMO5nMCC7Zm1VP6g==}
     engines: {node: 4.x || >=6.0.0}
@@ -12079,6 +12086,8 @@ snapshots:
   node-addon-api@7.1.1:
     optional: true
 
+  node-diff3@3.2.1: {}
+
   node-fetch@2.6.12:
     dependencies:
       whatwg-url: 5.0.0