diff --git a/.github/FUNDING.yml b/.github/FUNDING.yml
new file mode 100644
index 0000000..98cc39e
--- /dev/null
+++ b/.github/FUNDING.yml
@@ -0,0 +1 @@
+buy_me_a_coffee: giurrero
diff --git a/README.md b/README.md
index 1859775..2a20130 100644
--- a/README.md
+++ b/README.md
@@ -24,6 +24,7 @@
   <img src="https://img.shields.io/badge/tracking-none-brightgreen" alt="No tracking">
   <img src="https://img.shields.io/badge/dependencies-none-brightgreen" alt="No dependencies">
   <a href="LICENSE"><img src="https://img.shields.io/badge/license-MIT-blue" alt="MIT license"></a>
+  <a href="https://www.buymeacoffee.com/giurrero"><img src="https://img.shields.io/badge/Buy%20me%20a%20coffee-FFDD00?logo=buymeacoffee&logoColor=000" alt="Buy me a coffee"></a>
 </p>
 
 ![Bookmark Cleaner showing duplicated bookmarks grouped by link, each copy marked Keep or Delete](screenshot.png)
@@ -105,6 +106,11 @@ the Chrome API, and is tested with node:
 node --test
 ```
 
+## Support
+
+Bookmark Cleaner is free and will stay free. If it saved you some time, you
+can [buy me a coffee ☕](https://www.buymeacoffee.com/giurrero) — thank you!
+
 ## License
 
 [MIT](LICENSE) © Ruggero Turra
diff --git a/docs/index.html b/docs/index.html
index 72bdc62..d05359e 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -111,6 +111,9 @@
     summary { font-weight: 600; cursor: pointer; }
     details p { margin: 10px 0 0; color: var(--muted); }
     code { padding: 1px 6px; border-radius: 6px; background: var(--accent-soft); font-size: 0.9em; }
+    .coffee { display: inline-block; padding: 12px 22px; border-radius: 10px; background: #FFDD00;
+              color: #000; font-weight: 600; text-decoration: none; }
+    .coffee:hover { background: #ffd000; }
     footer { margin-top: 64px; padding: 32px 0; border-top: 1px solid var(--border); color: var(--muted); text-align: center; font-size: 15px; }
   </style>
 </head>
@@ -179,6 +182,11 @@ <h2>Frequently asked questions</h2>
       <details><summary>Does it work with synced bookmarks and other browsers?</summary>
         <p>It works on all the bookmarks in your Chrome profile, including those synced from other devices. It requires Chrome 104 or later and should also work in other Chromium-based browsers such as Edge and Brave.</p></details>
     </section>
+    <section id="support">
+      <h2>Support the project</h2>
+      <p>Bookmark Cleaner is free, open source and without ads. If it saved you some time, you can buy me a coffee — thank you!</p>
+      <p><a class="coffee" href="https://www.buymeacoffee.com/giurrero">☕ Buy me a coffee</a></p>
+    </section>
   </main>
 
   <footer>
diff --git a/main.js b/main.js
index 53fb54c..7498d55 100644
--- a/main.js
+++ b/main.js
@@ -72,6 +72,15 @@ function emptyState(title, text, extra) {
     ]);
 }
 
+var SUPPORT_URL = "https://www.buymeacoffee.com/giurrero";
+
+// discreet link to support the project, shown when there is nothing to clean
+function supportLink() {
+    return element("p", { className: "support" }, [
+        element("a", { href: SUPPORT_URL, target: "_blank", rel: "noopener", textContent: "\u2615 Like Bookmark Cleaner? Buy me a coffee" })
+    ]);
+}
+
 // message at the bottom of the page, with an Undo button while there is
 // something to undo
 var toastTimer = null;
diff --git a/store/listing.md b/store/listing.md
index 9827dd5..c388a87 100644
--- a/store/listing.md
+++ b/store/listing.md
@@ -63,6 +63,8 @@ No analytics, no tracking, and your bookmarks are never sent anywhere. Bookmark
 
 FREE AND OPEN SOURCE
 MIT license. Source code, issues and ideas: https://github.com/wiso/chrome-duplicates
+
+Like it? You can buy me a coffee: https://www.buymeacoffee.com/giurrero
 ```
 
 ## What's new in 0.3.0
diff --git a/style.css b/style.css
index 1de4d06..43e6d4c 100644
--- a/style.css
+++ b/style.css
@@ -695,6 +695,11 @@ dialog p {
     color: var(--muted);
 }
 
+.empty .support {
+    margin-top: 20px;
+    font-size: 13px;
+}
+
 /* small windows */
 
 @media (max-width: 640px) {
diff --git a/tab-duplicates.js b/tab-duplicates.js
index f43fdfd..9374b67 100644
--- a/tab-duplicates.js
+++ b/tab-duplicates.js
@@ -102,7 +102,8 @@ TABS.duplicates = (function() {
             container.replaceChildren(emptyState("Your bookmarks are tidy!",
                 document.getElementById("normalize").checked
                     ? "No duplicated bookmarks found."
-                    : "No duplicated bookmarks found. Turn on smart matching to also find links that differ only slightly."));
+                    : "No duplicated bookmarks found. Turn on smart matching to also find links that differ only slightly.",
+                supportLink()));
         }
         else if (!visible.length) {
             container.replaceChildren(emptyState("Nothing matches the filter",