diff --git a/src/app/(inbox)/thread/[threadId]/page.tsx b/src/app/(inbox)/thread/[threadId]/page.tsx
index 64bf97a..b64f978 100644
--- a/src/app/(inbox)/thread/[threadId]/page.tsx
+++ b/src/app/(inbox)/thread/[threadId]/page.tsx
@@ -1,5 +1,6 @@
 import { getSession, getAccountId, getThreadEmails } from "@/lib/jmap";
 import { notFound } from "next/navigation";
+import Link from "next/link";
 import MobileBackButton from "@/components/MobileBackButton";
 import EmailDetailView from "@/components/EmailDetailView";
 import ThreadView from "@/components/ThreadView";
@@ -47,9 +48,18 @@ export default async function ThreadPage({ params }: Props) {
     <div className="overflow-y-auto h-full bg-stone-50 dark:bg-stone-900">
       <div className="max-w-3xl mx-auto px-4 sm:px-8 py-8">
         <MobileBackButton label="Inbox" />
-        <h1 className="text-xl font-semibold text-stone-900 dark:text-stone-100 mb-6 leading-snug">
-          {subject}
-        </h1>
+        <div className="flex items-start justify-between gap-4 mb-6">
+          <h1 className="text-xl font-semibold text-stone-900 dark:text-stone-100 leading-snug">
+            {subject}
+          </h1>
+          <Link
+            href={`/print/thread/${threadId}`}
+            target="_blank"
+            className="shrink-0 text-xs px-3 py-1.5 rounded-md border border-stone-200 dark:border-stone-700 text-stone-600 dark:text-stone-400 hover:bg-stone-100 dark:hover:bg-stone-800 hover:text-stone-900 dark:hover:text-stone-100 transition-colors"
+          >
+            Print
+          </Link>
+        </div>
         <ThreadView emails={emails} calendarEvents={calendarEvents} />
       </div>
     </div>
diff --git a/src/app/globals.css b/src/app/globals.css
index bf9ff95..254c6aa 100644
--- a/src/app/globals.css
+++ b/src/app/globals.css
@@ -8,3 +8,9 @@
 :root {
   color-scheme: light dark;
 }
+
+@media print {
+  /* Allow content to expand to full height for printing */
+  html, body { height: auto !important; overflow: visible !important; }
+  body > div, main { height: auto !important; overflow: visible !important; }
+}
diff --git a/src/app/layout.tsx b/src/app/layout.tsx
index dcd9fea..8318432 100644
--- a/src/app/layout.tsx
+++ b/src/app/layout.tsx
@@ -32,7 +32,7 @@ export default async function RootLayout({
         {/* Row: desktop sidebar + main content */}
         <div className="flex flex-1 min-h-0 overflow-hidden">
           {/* Sidebar — desktop only */}
-          <nav className="hidden md:flex w-44 shrink-0 flex-col bg-stone-100 dark:bg-stone-950 border-r border-stone-200 dark:border-stone-800 px-3 py-5">
+          <nav className="hidden md:flex print:hidden w-44 shrink-0 flex-col bg-stone-100 dark:bg-stone-950 border-r border-stone-200 dark:border-stone-800 px-3 py-5">
             <span className="text-sm font-semibold text-stone-900 dark:text-stone-100 px-2 mb-4">
               Mail
             </span>
@@ -86,7 +86,7 @@ export default async function RootLayout({
         </div>
 
         {/* Mobile bottom nav — hidden on desktop */}
-        <MobileNav />
+        <div className="print:hidden"><MobileNav /></div>
       </body>
     </html>
   );
diff --git a/src/app/print/[id]/page.tsx b/src/app/print/[id]/page.tsx
new file mode 100644
index 0000000..1d151eb
--- /dev/null
+++ b/src/app/print/[id]/page.tsx
@@ -0,0 +1,67 @@
+import { getSession, getAccountId, getEmail } from "@/lib/jmap";
+import { formatAddressList, formatFullDate } from "@/lib/format";
+import { notFound } from "next/navigation";
+import PrintControls from "@/components/PrintControls";
+import { resolvePrintBody } from "@/lib/printHtml";
+
+export const dynamic = "force-dynamic";
+
+interface Props {
+  params: Promise<{ id: string }>;
+}
+
+export default async function PrintPage({ params }: Props) {
+  const { id } = await params;
+  const session = await getSession();
+  const accountId = getAccountId(session);
+  const email = await getEmail(session.apiUrl, accountId, id);
+  if (!email) return notFound();
+
+  const { bodyHtml, emailStyles, bodyType } = resolvePrintBody(email);
+  const subject = email.subject || "(no subject)";
+
+  return (
+    <div className="flex flex-col min-h-full bg-white">
+      <PrintControls subject={subject} />
+
+      <div className="max-w-3xl mx-auto w-full px-8 py-8">
+        <h1 className="text-2xl font-semibold text-stone-900 mb-5 leading-snug">
+          {subject}
+        </h1>
+
+        <dl
+          className="grid gap-x-4 gap-y-1 mb-8 text-sm border-b border-stone-200 pb-6"
+          style={{ gridTemplateColumns: "max-content 1fr" }}
+        >
+          <dt className="text-stone-400 text-right">From</dt>
+          <dd className="text-stone-700">{formatAddressList(email.from)}</dd>
+          {email.to && email.to.length > 0 && (
+            <>
+              <dt className="text-stone-400 text-right">To</dt>
+              <dd className="text-stone-700">{formatAddressList(email.to)}</dd>
+            </>
+          )}
+          {email.cc && email.cc.length > 0 && (
+            <>
+              <dt className="text-stone-400 text-right">Cc</dt>
+              <dd className="text-stone-700">{formatAddressList(email.cc)}</dd>
+            </>
+          )}
+          <dt className="text-stone-400 text-right">Date</dt>
+          <dd className="text-stone-500">{formatFullDate(email.receivedAt)}</dd>
+        </dl>
+
+        {emailStyles && <style dangerouslySetInnerHTML={{ __html: emailStyles }} />}
+
+        {bodyHtml ? (
+          <div
+            className={bodyType === "text" ? "text-sm text-stone-800 whitespace-pre-wrap font-mono leading-relaxed" : "text-sm text-stone-800"}
+            dangerouslySetInnerHTML={{ __html: bodyHtml }}
+          />
+        ) : (
+          <p className="text-stone-400 text-sm">(no body)</p>
+        )}
+      </div>
+    </div>
+  );
+}
diff --git a/src/app/print/thread/[threadId]/page.tsx b/src/app/print/thread/[threadId]/page.tsx
new file mode 100644
index 0000000..c5ffe8b
--- /dev/null
+++ b/src/app/print/thread/[threadId]/page.tsx
@@ -0,0 +1,86 @@
+import { getSession, getAccountId, getThreadEmails } from "@/lib/jmap";
+import { formatAddressList, formatFullDate } from "@/lib/format";
+import { notFound } from "next/navigation";
+import PrintControls from "@/components/PrintControls";
+import { resolvePrintBody } from "@/lib/printHtml";
+
+export const dynamic = "force-dynamic";
+
+interface Props {
+  params: Promise<{ threadId: string }>;
+}
+
+export default async function PrintThreadPage({ params }: Props) {
+  const { threadId } = await params;
+  const session = await getSession();
+  const accountId = getAccountId(session);
+  const emails = await getThreadEmails(session.apiUrl, accountId, threadId);
+  if (!emails.length) return notFound();
+
+  const subject = emails[emails.length - 1].subject || "(no subject)";
+
+  // Collect all unique email styles up front so we can inject once
+  const allStyles = emails
+    .map((e) => resolvePrintBody(e).emailStyles)
+    .filter(Boolean)
+    .join("\n");
+
+  return (
+    <div className="flex flex-col min-h-full bg-white">
+      <PrintControls subject={subject} />
+
+      <div className="max-w-3xl mx-auto w-full px-8 py-8">
+        <h1 className="text-2xl font-semibold text-stone-900 mb-8 leading-snug">
+          {subject}
+        </h1>
+
+        {allStyles && <style dangerouslySetInnerHTML={{ __html: allStyles }} />}
+
+        {emails.map((email, i) => {
+          const { bodyHtml, bodyType } = resolvePrintBody(email);
+          return (
+            <div key={email.id}>
+              {/* Per-message metadata */}
+              <dl
+                className="grid gap-x-4 gap-y-1 mb-4 text-sm"
+                style={{ gridTemplateColumns: "max-content 1fr" }}
+              >
+                <dt className="text-stone-400 text-right">From</dt>
+                <dd className="text-stone-700">{formatAddressList(email.from)}</dd>
+                {email.to && email.to.length > 0 && (
+                  <>
+                    <dt className="text-stone-400 text-right">To</dt>
+                    <dd className="text-stone-700">{formatAddressList(email.to)}</dd>
+                  </>
+                )}
+                {email.cc && email.cc.length > 0 && (
+                  <>
+                    <dt className="text-stone-400 text-right">Cc</dt>
+                    <dd className="text-stone-700">{formatAddressList(email.cc)}</dd>
+                  </>
+                )}
+                <dt className="text-stone-400 text-right">Date</dt>
+                <dd className="text-stone-500">{formatFullDate(email.receivedAt)}</dd>
+              </dl>
+
+              {/* Body */}
+              {bodyHtml ? (
+                <div
+                  className={bodyType === "text" ? "text-sm text-stone-800 whitespace-pre-wrap font-mono leading-relaxed" : "text-sm text-stone-800"}
+                  dangerouslySetInnerHTML={{ __html: bodyHtml }}
+                />
+              ) : (
+                <p className="text-stone-400 text-sm">(no body)</p>
+              )}
+
+              {/* Divider between messages */}
+              {i < emails.length - 1 && (
+                <hr className="my-8 border-stone-300" />
+              )}
+            </div>
+          );
+        })}
+      </div>
+    </div>
+  );
+}
diff --git a/src/components/EmailDetailView.tsx b/src/components/EmailDetailView.tsx
index c0f512c..162f8a0 100644
--- a/src/components/EmailDetailView.tsx
+++ b/src/components/EmailDetailView.tsx
@@ -106,6 +106,13 @@ export default async function EmailDetailView({ email, downloadUrl, accountId }:
         >
           Forward
         </Link>
+        <Link
+          href={`/print/${email.id}`}
+          target="_blank"
+          className="text-xs px-3 py-1.5 rounded-md border border-stone-200 dark:border-stone-700 text-stone-600 dark:text-stone-400 hover:bg-stone-100 dark:hover:bg-stone-800 hover:text-stone-900 dark:hover:text-stone-100 transition-colors"
+        >
+          Print
+        </Link>
       </div>
 
       {/* Calendar invite card */}
diff --git a/src/components/PrintControls.tsx b/src/components/PrintControls.tsx
new file mode 100644
index 0000000..725367c
--- /dev/null
+++ b/src/components/PrintControls.tsx
@@ -0,0 +1,29 @@
+"use client";
+
+import { useEffect } from "react";
+
+export default function PrintControls({ subject }: { subject: string }) {
+  useEffect(() => {
+    window.print();
+  }, []);
+
+  return (
+    <div className="print:hidden flex items-center justify-between px-6 py-3 border-b border-stone-200 dark:border-stone-700 bg-stone-50 dark:bg-stone-900 shrink-0">
+      <span className="text-sm text-stone-500 dark:text-stone-400 truncate mr-4">{subject}</span>
+      <div className="flex items-center gap-2 shrink-0">
+        <button
+          onClick={() => window.print()}
+          className="text-xs px-3 py-1.5 rounded-md bg-stone-900 dark:bg-stone-100 text-white dark:text-stone-900 hover:bg-stone-700 dark:hover:bg-stone-300 transition-colors"
+        >
+          Print / Save as PDF
+        </button>
+        <button
+          onClick={() => window.close()}
+          className="text-xs px-3 py-1.5 rounded-md border border-stone-200 dark:border-stone-700 text-stone-600 dark:text-stone-400 hover:bg-stone-100 dark:hover:bg-stone-800 transition-colors"
+        >
+          Close
+        </button>
+      </div>
+    </div>
+  );
+}
diff --git a/src/components/ThreadView.tsx b/src/components/ThreadView.tsx
index dab3b5e..884a6cb 100644
--- a/src/components/ThreadView.tsx
+++ b/src/components/ThreadView.tsx
@@ -148,6 +148,13 @@ function EmailStackItem({ email, calendarEvent, persistedResponse, onResponseSen
             >
               Forward
             </Link>
+            <Link
+              href={`/print/${email.id}`}
+              target="_blank"
+              className="text-xs px-3 py-1.5 rounded-md border border-stone-200 dark:border-stone-700 text-stone-600 dark:text-stone-400 hover:bg-stone-100 dark:hover:bg-stone-800 hover:text-stone-900 dark:hover:text-stone-100 transition-colors"
+            >
+              Print
+            </Link>
           </div>
 
           {/* Calendar invite */}
diff --git a/src/lib/printHtml.ts b/src/lib/printHtml.ts
new file mode 100644
index 0000000..9572890
--- /dev/null
+++ b/src/lib/printHtml.ts
@@ -0,0 +1,78 @@
+import { Email } from "@/lib/types";
+
+/**
+ * Server-side HTML sanitizer — no DOM required.
+ * Strips scripts and event handlers; keeps styles and layout intact.
+ */
+export function sanitizeHtml(html: string): string {
+  return html
+    .replace(/<script\b[^>]*>[\s\S]*?<\/script>/gi, "")
+    .replace(/\s+on[a-zA-Z]+\s*=\s*"[^"]*"/gi, "")
+    .replace(/\s+on[a-zA-Z]+\s*=\s*'[^']*'/gi, "")
+    .replace(/(href|src|action)\s*=\s*["']?\s*javascript:[^"'\s>]*/gi, "$1=\"#\"");
+}
+
+export function extractStyles(html: string): string {
+  const out: string[] = [];
+  const re = /<style[^>]*>([\s\S]*?)<\/style>/gi;
+  let m;
+  while ((m = re.exec(html)) !== null) out.push(m[1]);
+  return out.join("\n");
+}
+
+export function extractBodyContent(html: string): string {
+  const m = html.match(/<body[^>]*>([\s\S]*?)<\/body>/i);
+  if (m) return m[1];
+  return html
+    .replace(/<!DOCTYPE[^>]*>/gi, "")
+    .replace(/<\/?html[^>]*>/gi, "")
+    .replace(/<head[\s\S]*?<\/head>/gi, "")
+    .trim();
+}
+
+/** Resolve the printable body HTML and styles from an Email object. */
+export function resolvePrintBody(email: Email): {
+  bodyHtml: string;
+  emailStyles: string;
+  bodyType: "html" | "text";
+} {
+  let rawBody: string | null = null;
+  let bodyType: "html" | "text" = "text";
+
+  if (email.htmlBody?.length > 0) {
+    const part = email.htmlBody[0];
+    if (part.partId && email.bodyValues?.[part.partId]) {
+      rawBody = email.bodyValues[part.partId].value;
+      bodyType = "html";
+    }
+  }
+  if (!rawBody && email.textBody?.length > 0) {
+    const part = email.textBody[0];
+    if (part.partId && email.bodyValues?.[part.partId]) {
+      rawBody = email.bodyValues[part.partId].value;
+      bodyType = "text";
+    }
+  }
+
+  if (bodyType === "html" && rawBody) {
+    const sanitized = sanitizeHtml(rawBody);
+    return {
+      bodyHtml: extractBodyContent(sanitized),
+      emailStyles: extractStyles(sanitized),
+      bodyType,
+    };
+  }
+
+  if (rawBody) {
+    return {
+      bodyHtml: rawBody
+        .replace(/&/g, "&amp;")
+        .replace(/</g, "&lt;")
+        .replace(/>/g, "&gt;"),
+      emailStyles: "",
+      bodyType: "text",
+    };
+  }
+
+  return { bodyHtml: "", emailStyles: "", bodyType: "text" };
+}