diff --git a/src/App.svelte b/src/App.svelte
index 245034f..60aea44 100644
--- a/src/App.svelte
+++ b/src/App.svelte
@@ -1,6 +1,8 @@
 <script lang="ts">
   import { onMount } from 'svelte'
+  import FingerprintSection from './components/FingerprintSection.svelte'
   import ExportButton from './components/ExportButton.svelte'
+  import SourceCodeButton from './components/SourceCodeButton.svelte'
   import ProgressBar from './components/ProgressBar.svelte'
   import FingerprintGrid from './components/FingerprintGrid.svelte'
   import LanguageSwitch from './components/LanguageSwitch.svelte'
@@ -36,6 +38,7 @@
 </script>
 
 <LanguageSwitch on:languageChanged={onLanguageChanged} />
+<SourceCodeButton />
 
 {#key refreshKey}
 <main class="main-container">
diff --git a/src/components/LanguageSwitch.svelte b/src/components/LanguageSwitch.svelte
index a1315c1..2e755c5 100644
--- a/src/components/LanguageSwitch.svelte
+++ b/src/components/LanguageSwitch.svelte
@@ -21,12 +21,12 @@
   .lang-switch {
     position: fixed;
     top: 20px;
-    right: 20px;
+    right: 140px;
     background: #007bff;
     color: white;
     border: none;
     border-radius: 4px;
-    padding: 8px 12px;
+    padding: 8.5px 15px;
     cursor: pointer;
     font-weight: 500;
     font-size: 14px;
diff --git a/src/components/SourceCodeButton.svelte b/src/components/SourceCodeButton.svelte
new file mode 100644
index 0000000..56c5dee
--- /dev/null
+++ b/src/components/SourceCodeButton.svelte
@@ -0,0 +1,36 @@
+<script lang="ts">
+  function openSourceCode() {
+    window.open('https://git.fuckyougoogle.xyz/iwakura/WhatCanFingerprint', '_blank')
+  }
+</script>
+
+<div class="source-code-button">
+  <button on:click={openSourceCode} class="btn btn-source">
+    Source Code
+  </button>
+</div>
+
+<style>
+  .source-code-button {
+    position: fixed;
+    top: 20px;
+    right: 20px;
+    z-index: 1000;
+  }
+  
+  .btn-source {
+    padding: 8px 12px;
+    background: #6c757d;
+    color: white;
+    border: none;
+    border-radius: 4px;
+    font-size: 14px;
+    font-weight: 500;
+    cursor: pointer;
+    transition: background-color 0.2s;
+  }
+  
+  .btn-source:hover {
+    background: #545b62;
+  }
+</style>