diff --git a/Launcher/runtime/dialog/dialog.fxml b/Launcher/runtime/dialog/dialog.fxml
index 1f7a49d..91fd239 100755
--- a/Launcher/runtime/dialog/dialog.fxml
+++ b/Launcher/runtime/dialog/dialog.fxml
@@ -5,11 +5,9 @@
 <?import javafx.scene.control.CheckBox?>
 <?import javafx.scene.control.ComboBox?>
 <?import javafx.scene.control.Hyperlink?>
-<?import javafx.scene.control.Label?>
 <?import javafx.scene.control.PasswordField?>
 <?import javafx.scene.control.TextField?>
 <?import javafx.scene.layout.Pane?>
-<?import javafx.scene.layout.StackPane?>
 <?import javafx.scene.web.WebView?>
 
 <Pane xmlns:fx="http://javafx.com/fxml/1" fx:id="layout" prefWidth="600.0" prefHeight="400.0">
diff --git a/Launcher/runtime/dialog/profileCell.fxml b/Launcher/runtime/dialog/profileCell.fxml
index 1f5ca69..6945e7d 100755
--- a/Launcher/runtime/dialog/profileCell.fxml
+++ b/Launcher/runtime/dialog/profileCell.fxml
@@ -1,10 +1,9 @@
 <?xml version="1.0" encoding="UTF-8"?>
 
 <?import java.net.URL?>
+<?import javafx.scene.control.Label?>
 <?import javafx.scene.layout.HBox?>
 <?import javafx.scene.layout.Pane?>
-<?import javafx.scene.control.Button?>
-<?import javafx.scene.control.Label?>
 <?import javafx.scene.shape.Circle?>
 
 <HBox xmlns:fx="http://javafx.com/fxml/1" fx:id="cellBox">
diff --git a/compat/auth/uuid/ReversibleUUIDs.java b/compat/auth/uuid/ReversibleUUIDs.java
new file mode 100644
index 0000000..137704f
--- /dev/null
+++ b/compat/auth/uuid/ReversibleUUIDs.java
@@ -0,0 +1,19 @@
+public static UUID toUUID(String username) {
+	ByteBuffer buffer = ByteBuffer.wrap(Arrays.copyOf(username.getBytes(StandardCharsets.US_ASCII), 16));
+	return new UUID(buffer.getLong(), buffer.getLong()); // MOST, LEAST
+}
+
+public static String toUsername(UUID uuid) {
+	byte[] bytes = ByteBuffer.allocate(16).
+		putLong(uuid.getMostSignificantBits()).
+		putLong(uuid.getLeastSignificantBits()).array();
+
+	// Find username end
+	int length = 0;
+	while(length < bytes.length && bytes[length] != 0) {
+		length++;
+	}
+
+	// Decode and verify
+	return VerifyHelper.verifyUsername(new String(bytes, 0, length, StandardCharsets.US_ASCII));
+}
\ No newline at end of file
diff --git a/compat/auth/uuid/uuidgen.sql b/compat/auth/uuid/uuidgen.sql
new file mode 100644
index 0000000..8c8e726
--- /dev/null
+++ b/compat/auth/uuid/uuidgen.sql
@@ -0,0 +1,8 @@
+DELIMITER //
+CREATE TRIGGER setUUID BEFORE INSERT ON users
+FOR EACH ROW BEGIN
+	IF NEW.uuid IS NULL THEN
+		SET NEW.uuid = UUID();
+	END IF;
+END; //
+DELIMITER ;
\ No newline at end of file
diff --git a/compat/auth/uuid/uuidgen_offline.sql b/compat/auth/uuid/uuidgen_offline.sql
new file mode 100644
index 0000000..608635d
--- /dev/null
+++ b/compat/auth/uuid/uuidgen_offline.sql
@@ -0,0 +1,11 @@
+-- WARNING! Usage of this generation method is NOT recommended
+
+DELIMITER //
+CREATE TRIGGER setUUID BEFORE INSERT ON users
+FOR EACH ROW BEGIN
+	IF NEW.uuid IS NULL THEN
+		SET @md5 = MD5(CONCAT("OfflinePlayer:", NEW.username));
+		SET NEW.uuid = CONCAT_WS('-', LEFT(@md5, 8), MID(@md5, 9, 4), MID(@md5, 13, 4), MID(@md5, 17, 4), RIGHT(@md5, 12));
+	END IF;
+END; //
+DELIMITER ;
\ No newline at end of file