diff --git a/web/fup/fupstatic/js/base.js b/web/fup/fupstatic/js/base.js
index 3f3951a4c1..d76b9fd467 100644
--- a/web/fup/fupstatic/js/base.js
+++ b/web/fup/fupstatic/js/base.js
@@ -153,6 +153,14 @@ if (document.body.classList.contains('upload-page')) {
     for (const item of clipboardData.items) {
       if (item.kind === 'file') {
         uploadFile(item.getAsFile(), expiryEl.value);
+      } else if (item.kind === 'string') {
+        item.getAsString((data) => {
+          // This is a hack, we should do something... more sensible.
+          const uploadData = new Blob([data], { type: 'text/plain' });
+          uploadData.name = 'clipboard.txt';
+
+          uploadFile(uploadData, expiryEl.value);
+        });
       }
     }
   });