diff --git a/butterfly/static/ext.js b/butterfly/static/ext.js
index b6e5256..67a78a6 100644
--- a/butterfly/static/ext.js
+++ b/butterfly/static/ext.js
@@ -142,11 +142,19 @@
   });
 
   addEventListener('paste', function(e) {
-    var data;
+    var data, send, size;
     butterfly.bell("pasted");
     data = e.clipboardData.getData('text/plain');
     data = data.replace(/\r\n/g, '\n').replace(/\n/g, '\r');
-    butterfly.send(data);
+    size = 1024;
+    send = function() {
+      butterfly.send(data.substring(0, size));
+      data = data.substring(size);
+      if (data.length) {
+        return setTimeout(send, 25);
+      }
+    };
+    send();
     return e.preventDefault();
   });
 
diff --git a/coffees/ext/clipboard.coffee b/coffees/ext/clipboard.coffee
index 845e820..b28167c 100644
--- a/coffees/ext/clipboard.coffee
+++ b/coffees/ext/clipboard.coffee
@@ -33,9 +33,18 @@ addEventListener 'copy', copy = (e) ->
   e.clipboardData.setData 'text/plain', data.slice(0, -1)
   e.preventDefault()
 
+
 addEventListener 'paste', (e) ->
   butterfly.bell "pasted"
   data = e.clipboardData.getData 'text/plain'
   data = data.replace(/\r\n/g, '\n').replace(/\n/g, '\r')
-  butterfly.send data
+  # Send big data in chunks to prevent data loss
+  size = 1024
+  send = ->
+    butterfly.send data.substring(0, size)
+    data = data.substring(size)
+    if data.length
+      setTimeout send, 25
+  send()
+
   e.preventDefault()