diff --git a/FireWalletLite/DomainForm.Designer.cs b/FireWalletLite/DomainForm.Designer.cs
index 92bb17d..d9498cc 100644
--- a/FireWalletLite/DomainForm.Designer.cs
+++ b/FireWalletLite/DomainForm.Designer.cs
@@ -39,6 +39,8 @@
             buttonCancel = new Button();
             buttonFinalize = new Button();
             groupBoxSign = new GroupBox();
+            textBoxSignature = new TextBox();
+            buttonSign = new Button();
             textBoxSignMessage = new TextBox();
             labelSignMessage = new Label();
             groupBoxManage.SuspendLayout();
@@ -151,6 +153,8 @@
             // 
             // groupBoxSign
             // 
+            groupBoxSign.Controls.Add(textBoxSignature);
+            groupBoxSign.Controls.Add(buttonSign);
             groupBoxSign.Controls.Add(textBoxSignMessage);
             groupBoxSign.Controls.Add(labelSignMessage);
             groupBoxSign.Font = new Font("Segoe UI", 14F, FontStyle.Regular, GraphicsUnit.Point);
@@ -161,13 +165,33 @@
             groupBoxSign.TabStop = false;
             groupBoxSign.Text = "Sign";
             // 
+            // textBoxSignature
+            // 
+            textBoxSignature.Location = new Point(484, 56);
+            textBoxSignature.Multiline = true;
+            textBoxSignature.Name = "textBoxSignature";
+            textBoxSignature.ReadOnly = true;
+            textBoxSignature.Size = new Size(260, 156);
+            textBoxSignature.TabIndex = 3;
+            // 
+            // buttonSign
+            // 
+            buttonSign.Location = new Point(606, 218);
+            buttonSign.Name = "buttonSign";
+            buttonSign.Size = new Size(138, 33);
+            buttonSign.TabIndex = 2;
+            buttonSign.Text = "Sign";
+            buttonSign.UseVisualStyleBackColor = true;
+            buttonSign.Click += buttonSign_Click;
+            // 
             // textBoxSignMessage
             // 
             textBoxSignMessage.Location = new Point(6, 56);
             textBoxSignMessage.Multiline = true;
             textBoxSignMessage.Name = "textBoxSignMessage";
-            textBoxSignMessage.Size = new Size(744, 195);
+            textBoxSignMessage.Size = new Size(472, 156);
             textBoxSignMessage.TabIndex = 1;
+            textBoxSignMessage.TextChanged += textBoxSignMessage_TextChanged;
             // 
             // labelSignMessage
             // 
@@ -216,5 +240,7 @@
         private GroupBox groupBoxSign;
         private TextBox textBoxSignMessage;
         private Label labelSignMessage;
+        private Button buttonSign;
+        private TextBox textBoxSignature;
     }
 }
\ No newline at end of file
diff --git a/FireWalletLite/DomainForm.cs b/FireWalletLite/DomainForm.cs
index 91ade65..ff2835d 100644
--- a/FireWalletLite/DomainForm.cs
+++ b/FireWalletLite/DomainForm.cs
@@ -37,7 +37,7 @@ namespace FireWalletLite
         private void DomainForm_Load(object sender, EventArgs e)
         {
             if (!File.Exists(Main.dir + "domains.json")) return;
-            
+
             JArray domains = JArray.Parse(File.ReadAllText(Main.dir + "domains.json"));
             foreach (JObject domain in domains)
             {
@@ -238,5 +238,60 @@ namespace FireWalletLite
                 File.WriteAllText(Main.dir + "domains.json", domains.ToString());
             }
         }
+
+        private async void buttonSign_Click(object sender, EventArgs e)
+        {
+            if (buttonSign.Text == "Save")
+            {
+                SaveFileDialog saveFileDialog = new SaveFileDialog();
+                saveFileDialog.Filter = "Text File|*.txt";
+                saveFileDialog.Title = "Save Signature";
+                if (saveFileDialog.ShowDialog() == DialogResult.OK)
+                {
+                    JObject signature = new JObject();
+                    signature["domain"] = Domain;
+                    signature["message"] = textBoxSignMessage.Text;
+                    signature["signature"] = textBoxSignature.Text;
+                    signature["time"] = DateTime.Now.ToString();
+                    File.WriteAllText(saveFileDialog.FileName, signature.ToString());
+                }
+
+                return;
+            }
+            if (textBoxSignMessage.Text == "")
+            {
+                NotifyForm notify = new NotifyForm("Enter a message to sign");
+                notify.ShowDialog();
+                notify.Dispose();
+                return;
+            }
+            string content = "{\"method\": \"signmessagewithname\", \"params\": [\"" + Domain + "\", \"" + textBoxSignMessage.Text + "\"]}";
+            string response = await Main.APIPost("", true, content);
+            if (response == "Error")
+            {
+                NotifyForm notify = new NotifyForm("Error signing message");
+                notify.ShowDialog();
+                notify.Dispose();
+                return;
+            }
+            JObject jObject = JObject.Parse(response);
+            if (jObject.ContainsKey("result"))
+            {
+                textBoxSignature.Text = jObject["result"].ToString();
+                buttonSign.Text = "Save";
+            }
+            else
+            {
+                Main.AddLog(response);
+                NotifyForm notify = new NotifyForm("Error signing message");
+                notify.ShowDialog();
+                notify.Dispose();
+            }
+        }
+
+        private void textBoxSignMessage_TextChanged(object sender, EventArgs e)
+        {
+            buttonSign.Text = "Sign";
+        }
     }
 }