diff --git a/static/css/common.css b/static/css/common.css
index 2fcb8f4..2b46c96 100644
--- a/static/css/common.css
+++ b/static/css/common.css
@@ -3,6 +3,8 @@
     min-width: 500px;
     float: left;
 }
+.error { color: #ff0000; }
+
 /** Modal **/
 .modal-bg {
     display: none;
diff --git a/static/index.html b/static/index.html
index 42077f9..313d694 100644
--- a/static/index.html
+++ b/static/index.html
@@ -19,6 +19,7 @@ <h2>Your Keys</h2>
       <textarea name="pubkey" placeholder="Paste ~/.ssh/id_rsa.pub here!"></textarea>
       <button type="submit">Add new key</button>
     </form>
+    <p id="js-addkey-error" class="error"></p>
   </section>
 
   <section id="modal" class="modal-bg">
diff --git a/static/js/add_key.js b/static/js/add_key.js
index 0ea46c4..31ee4dc 100644
--- a/static/js/add_key.js
+++ b/static/js/add_key.js
@@ -5,13 +5,14 @@
   }
 
   var onSubmitKey = function($form) {
-    var input = $form.pubkey.value.trim();
+    var input = $form.pubkey.value.trim(),
+        $error = document.getElementById('js-addkey-error');
 
     // Format of key: algorithm (e.g. ssh-rsa), base64 encoded pubkey and an optional comment
     var keyObj = input.match(/^(.+)\s((?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=)?)(?:\s(.+))?$/);
     if (!keyObj) {
-        console.error('Wrong format in submitted key. Example: "ssh-rsa AAAA...== user@host"');
-        return;
+      $error.textContent = 'Wrong format in submitted key. Example: "ssh-rsa AAAA...== user@host"';
+      return;
     }
 
     var comment = keyObj[3] || '';
@@ -24,8 +25,14 @@
       document.body.dispatchEvent(event);
     };
 
+    var clearForm = function () {
+      $error.textContent = '';
+      $form.pubkey.value = '';
+    };
+
     save(postData)
       .then(triggerEvent)
+      .then(clearForm)
       .catch(function(error) {
         console.error("Error when saving new key", error);
       });