trust: link the public source repo (header, footer, About)

For a tool whose pitch is 'your token never leaves the browser', showing the
code is the strongest credibility signal. Adds a GitHub 'Source' link in the
header (always visible), the footer, and a 'verify it yourself — it's open
source' line on the About page, all pointing to github.com/devploit/jwtforge.

Author: devploit

src/app/about/page.tsx

@@ -65,6 +65,20 @@ export default function AboutPage() {
           Network tab, paste a token, and exercise every feature. You will see
           no outbound request carrying your token, secret, or keys.
         </p>
+        <p>
+          And you don&apos;t have to take our word for it — JWTForge is open
+          source. Read the code, check what the deployed commit does, and audit
+          the claims on this page at{" "}
+          <a
+            href="https://github.com/devploit/jwtforge"
+            target="_blank"
+            rel="noopener noreferrer"
+            className="text-accent hover:underline"
+          >
+            github.com/devploit/jwtforge
+          </a>
+          .
+        </p>
       </Section>
 
       <Section title="The one exception: JWKS fetch">

src/app/layout.tsx

@@ -28,6 +28,7 @@ const mono = JetBrains_Mono({
 import { SiteNav } from "@/components/SiteNav";
 import { PrivacyBadge } from "@/components/PrivacyBadge";
 import { Logo } from "@/components/Logo";
+import { GithubLink } from "@/components/GithubLink";
 import { JsonLd } from "@/components/JsonLd";
 import { AnalyticsClient } from "@/components/AnalyticsClient";
 import { ServiceWorkerRegister } from "@/components/ServiceWorkerRegister";
@@ -127,7 +128,10 @@ export default function RootLayout({
                 </Link>
                 <PrivacyBadge />
               </div>
-              <SiteNav />
+              <div className="flex items-center gap-3 sm:gap-4">
+                <SiteNav />
+                <GithubLink className="border-l border-line/70 pl-3 sm:pl-4" />
+              </div>
             </div>
           </header>
           <main id="main" className="mx-auto max-w-6xl px-4 py-6">
@@ -156,6 +160,15 @@ export default function RootLayout({
                 @devploit
               </a>{" "}
               <span className="text-slate-700">— built in the browser, for the browser</span>
+              <span className="mx-2 text-slate-700">·</span>
+              <a
+                href="https://github.com/devploit/jwtforge"
+                target="_blank"
+                rel="noopener noreferrer"
+                className="text-slate-400 transition-colors hover:text-accent"
+              >
+                source on GitHub
+              </a>
             </p>
           </footer>
           <AnalyticsClient />

src/components/GithubLink.tsx

@@ -0,0 +1,20 @@
+const REPO_URL = "https://github.com/devploit/jwtforge";
+
+/** Link to the public source — the ultimate proof of the privacy guarantee. */
+export function GithubLink({ className = "" }: { className?: string }) {
+  return (
+    <a
+      href={REPO_URL}
+      target="_blank"
+      rel="noopener noreferrer"
+      aria-label="View source on GitHub"
+      title="View source on GitHub — verify the privacy claim yourself"
+      className={`inline-flex items-center gap-1.5 text-slate-400 transition-colors hover:text-accent ${className}`}
+    >
+      <svg width="18" height="18" viewBox="0 0 16 16" fill="currentColor" aria-hidden="true">
+        <path d="M8 0C3.58 0 0 3.58 0 8c0 3.54 2.29 6.53 5.47 7.59.4.07.55-.17.55-.38 0-.19-.01-.82-.01-1.49-2.01.37-2.53-.49-2.69-.94-.09-.23-.48-.94-.82-1.13-.28-.15-.68-.52-.01-.53.63-.01 1.08.58 1.23.82.72 1.21 1.87.87 2.33.66.07-.52.28-.87.51-1.07-1.78-.2-3.64-.89-3.64-3.95 0-.87.31-1.59.82-2.15-.08-.2-.36-1.02.08-2.12 0 0 .67-.21 2.2.82.64-.18 1.32-.27 2-.27.68 0 1.36.09 2 .27 1.53-1.04 2.2-.82 2.2-.82.44 1.1.16 1.92.08 2.12.51.56.82 1.27.82 2.15 0 3.07-1.87 3.75-3.65 3.95.29.25.54.73.54 1.48 0 1.07-.01 1.93-.01 2.2 0 .21.15.46.55.38A8.013 8.013 0 0016 8c0-4.42-3.58-8-8-8z" />
+      </svg>
+      <span className="text-sm font-medium">Source</span>
+    </a>
+  );
+}