diff --git a/index.html b/index.html
index 676463cfc..ae1d3570b 100644
--- a/index.html
+++ b/index.html
@@ -39,6 +39,7 @@
         <script src='js/id/ui/modal.js'></script>
         <script src='js/id/ui/confirm.js'></script>
         <script src='js/id/ui/commit.js'></script>
+        <script src='js/id/ui/success.js'></script>
         <script src='js/id/ui/loading.js'></script>
         <script src='js/id/ui/userpanel.js'></script>
         <script src='js/id/ui/layerswitcher.js'></script>
diff --git a/js/id/id.js b/js/id/id.js
index 914567cf2..005e508f4 100644
--- a/js/id/id.js
+++ b/js/id/id.js
@@ -121,6 +121,17 @@ window.iD = function(container) {
                         l.remove();
                         history.reset();
                         map.flush().redraw();
+                        var modal = iD.modal();
+                        modal.select('.content')
+                            .classed('success-modal', true)
+                            .datum({
+                                id: changeset_id,
+                                comment: e.comment
+                            })
+                            .call(iD.success()
+                                .on('cancel', function() {
+                                    modal.remove();
+                                }));
                     });
                 }
                 var changes = history.changes();
diff --git a/js/id/ui/success.js b/js/id/ui/success.js
new file mode 100644
index 000000000..f81be1028
--- /dev/null
+++ b/js/id/ui/success.js
@@ -0,0 +1,43 @@
+iD.success = function() {
+    var event = d3.dispatch('cancel', 'save');
+
+    function success(selection) {
+        var changeset = selection.datum(),
+            header = selection.append('div').attr('class', 'header modal-section'),
+            body = selection.append('div').attr('class', 'body');
+
+        var section = body.append('div').attr('class','modal-section');
+
+        header.append('h2').text('You Just Edited OpenStreetMap!');
+        header.append('p').text('You just improved the world\'s best free map');
+
+        var m = '';
+        if (changeset.comment) {
+            m = '"' + changeset.comment.substring(0, 20) + '" ';
+        }
+
+        var message = 'Edited OpenStreetMap! ' + m +
+            'http://osm.org/browse/changeset/' + changeset.id;
+
+        section.append('a')
+            .attr('href', function(d) {
+                return 'https://twitter.com/intent/tweet?source=webclient&text=' +
+                    encodeURIComponent(message);
+            })
+            .text('Tweet: ' + message);
+
+        var buttonwrap = section.append('div')
+            .attr('class', 'buttons');
+
+        var okbutton = buttonwrap.append('button')
+            .attr('class', 'action wide')
+            .on('click.save', function() {
+                event.cancel();
+            });
+
+        okbutton.append('span').attr('class','icon apply icon-pre-text');
+        okbutton.append('span').attr('class','label').text('OK');
+    }
+
+    return d3.rebind(success, event, 'on');
+};