diff --git a/engine.py b/engine.py
index 5ba40e1..ad8782a 100644
--- a/engine.py
+++ b/engine.py
@@ -1483,6 +1483,7 @@ async def catch_all(req, resp, *, path):
             content=content_data["content"],
             title=content_data["title"],
             metadata=content_data.get("metadata", {}),
+            github_file=f"data/{path}.md",
             reading_time=content_data.get("reading_time"),
             word_count=content_data.get("word_count"),
             tags=content_data.get("tags", []),
@@ -1553,6 +1554,7 @@ async def catch_all(req, resp, *, path):
                 metadata=content_data.get("metadata", {}),
                 items=items,
                 current_path=f"/{path}",
+                github_file=f"data/{path}/index.md",
                 current_year=datetime.now().year,
                 reading_time=content_data.get("reading_time"),
                 word_count=content_data.get("word_count"),
diff --git a/tuftecms/blueprints/content.py b/tuftecms/blueprints/content.py
index 47dcf6a..eb60f61 100644
--- a/tuftecms/blueprints/content.py
+++ b/tuftecms/blueprints/content.py
@@ -440,6 +440,7 @@ def serve_content(path):
                     metadata=content_data["metadata"],
                     items=items,
                     current_path=f"/{path}",
+                    github_file=f"data/{path}/index.md",
                     current_year=datetime.now().year,
                     reading_time=content_data.get("reading_time"),
                     word_count=content_data.get("word_count"),
@@ -581,6 +582,7 @@ def serve_content(path):
             title=content_data["title"],
             metadata=content_data["metadata"],
             current_path=f"/{path}",
+            github_file=f"data/{path}.md",
             current_year=datetime.now().year,
             reading_time=content_data.get("reading_time"),
             word_count=content_data.get("word_count"),
diff --git a/tuftecms/static/images/github-banner.svg b/tuftecms/static/images/github-banner.svg
new file mode 100644
index 0000000..c47d9dc
--- /dev/null
+++ b/tuftecms/static/images/github-banner.svg
@@ -0,0 +1,5 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="80" height="80" viewBox="0 0 250 250" fill="#fff">
+    <path d="M0 0l115 115h15l12 27 108 108V0z" fill="#151513"/>
+    <path d="M128 109c-15-9-9-19-9-19 3-7 2-11 2-11-1-7 3-2 3-2 4 5 2 11 2 11-3 10 5 15 9 16"/>
+    <path d="M115 115s4 2 5 0l14-14c3-2 6-3 8-3-8-11-15-24 2-41 5-5 10-7 16-7 1-2 3-7 12-11 0 0 5 3 7 16 4 2 8 5 12 9s7 8 9 12c14 3 17 7 17 7-4 8-9 11-11 11 0 6-2 11-7 16-16 16-30 10-41 2 0 3-1 7-5 11l-12 11c-1 1 1 5 1 5z"/>
+</svg>
diff --git a/tuftecms/templates/base.html b/tuftecms/templates/base.html
index 298c4c1..d8891c3 100644
--- a/tuftecms/templates/base.html
+++ b/tuftecms/templates/base.html
@@ -183,6 +183,39 @@
                 }
             }
             
+            .github-corner {
+                position: fixed;
+                top: 0;
+                right: 0;
+                z-index: 9998;
+                opacity: 0.85;
+                transition: opacity 0.3s ease;
+            }
+
+            .github-corner:hover {
+                opacity: 0.8;
+            }
+
+            .github-corner-img {
+                width: 80px;
+                height: 80px;
+            }
+
+            body.dark-mode .github-corner {
+                opacity: 0.25;
+            }
+
+            body.dark-mode .github-corner-img {
+                filter: invert(1);
+            }
+
+            @media (max-width: 760px) {
+                .github-corner-img {
+                    width: 50px;
+                    height: 50px;
+                }
+            }
+
             .theme-toggle {
                 position: fixed;
                 bottom: 2rem;
@@ -409,6 +442,15 @@
         <!-- Reading progress bar -->
         <div class="reading-progress" id="reading-progress"></div>
         
+        {% set github_base = 'https://github.com/kennethreitz/kennethreitz.org' %}
+        {% if github_file %}
+        <a href="{{ github_base }}/blob/main/{{ github_file }}" class="github-corner" aria-label="View source on GitHub" target="_blank">
+        {% else %}
+        <a href="{{ github_base }}" class="github-corner" aria-label="View source on GitHub" target="_blank">
+        {% endif %}
+            <img src="/static/images/github-banner.svg" alt="View on GitHub" class="github-corner-img">
+        </a>
+
         <button id="theme-toggle" class="theme-toggle" aria-label="Toggle dark mode">
             <span class="sun-icon">☀️</span>
             <span class="moon-icon">🌙</span>