diff --git a/src/main/java/org/samo_lego/simpleauth/storage/DBHelper.java b/src/main/java/org/samo_lego/simpleauth/storage/DBHelper.java
index 3c5c1ca..d8c4919 100644
--- a/src/main/java/org/samo_lego/simpleauth/storage/DBHelper.java
+++ b/src/main/java/org/samo_lego/simpleauth/storage/DBHelper.java
@@ -1,23 +1,11 @@
 package org.samo_lego.simpleauth.storage;
 
-import org.iq80.leveldb.DB;
-import org.iq80.leveldb.DBException;
 import org.samo_lego.simpleauth.storage.database.LevelDB;
 import org.samo_lego.simpleauth.storage.database.MongoDB;
 
-import java.io.IOException;
-
-import static org.iq80.leveldb.impl.Iq80DBFactory.bytes;
-import static org.samo_lego.simpleauth.utils.SimpleLogger.logError;
-import static org.samo_lego.simpleauth.utils.SimpleLogger.logInfo;
 import static org.samo_lego.simpleauth.SimpleAuth.config;
 
 public class DBHelper {
-    private DB levelDBStore;
-
-    public DB getLevelDBStore() {
-        return this.levelDBStore;
-    }
 
     /**
      * Connects to the DB.
@@ -33,14 +21,8 @@ public class DBHelper {
      * Closes database connection.
      */
     public void close() {
-        if (levelDBStore != null) {
-            try {
-                levelDBStore.close();
-                logInfo("Database connection closed successfully.");
-            } catch (Error | IOException e) {
-                logError(e.getMessage());
-            }
-        }
+        if(!config.main.useMongoDB)
+            LevelDB.close();
     }
 
     /**
@@ -49,7 +31,7 @@ public class DBHelper {
      * @return false if connection is open, otherwise false
      */
     public boolean isClosed() {
-        return levelDBStore == null;
+        return config.main.useMongoDB || LevelDB.isClosed();
     }
 
 
@@ -61,16 +43,9 @@ public class DBHelper {
      * @return true if operation was successful, otherwise false
      */
     public boolean registerUser(String uuid, String data) {
-        try {
-            if(!this.isUserRegistered(uuid)) {
-                levelDBStore.put(bytes("UUID:" + uuid), bytes("data:" + data));
-                return true;
-            }
-            return false;
-        } catch (Error e) {
-            logError("Register error: " + e.getMessage());
-            return false;
-        }
+        if(config.main.useMongoDB)
+            return MongoDB.registerUser(uuid, data);
+        return LevelDB.registerUser(uuid, data);
     }
 
     /**
@@ -80,12 +55,7 @@ public class DBHelper {
      * @return true if registered, otherwise false
      */
     public boolean isUserRegistered(String uuid) {
-        try {
-            return levelDBStore.get(bytes("UUID:" + uuid)) != null;
-        } catch (DBException e) {
-            logError(e.getMessage());
-        }
-        return false;
+        return config.main.useMongoDB ? MongoDB.isUserRegistered(uuid) : LevelDB.isUserRegistered(uuid);
     }
 
     /**
@@ -94,11 +64,10 @@ public class DBHelper {
      * @param uuid uuid of player to delete data for
      */
     public void deleteUserData(String uuid) {
-        try {
-            levelDBStore.delete(bytes("UUID:" + uuid));
-        } catch (Error e) {
-            logError(e.getMessage());
-        }
+        if(config.main.useMongoDB)
+            MongoDB.isUserRegistered(uuid);
+        else
+            LevelDB.isUserRegistered(uuid);
     }
 
     /**
@@ -108,11 +77,10 @@ public class DBHelper {
      * @param data data to put inside database
      */
     public void updateUserData(String uuid, String data) {
-        try {
-            levelDBStore.put(bytes("UUID:" + uuid), bytes("data:" + data));
-        } catch (Error e) {
-            logError(e.getMessage());
-        }
+        if(config.main.useMongoDB)
+            MongoDB.updateUserData(uuid, data);
+        else
+            LevelDB.updateUserData(uuid, data);
     }
 
     /**
@@ -121,13 +89,7 @@ public class DBHelper {
      * @param uuid uuid of the player to get data for.
      * @return data as string if player has it, otherwise empty string.
      */
-    public String getData(String uuid){
-        try {
-            if(this.isUserRegistered(uuid))  // Gets password from db and removes "data:" prefix from it
-                return new String(levelDBStore.get(bytes("UUID:" + uuid))).substring(5);
-        } catch (Error e) {
-            logError("Error getting data: " + e.getMessage());
-        }
-        return "";
+    public String getUserData(String uuid){
+        return config.main.useMongoDB ? MongoDB.getUserData(uuid) : LevelDB.getUserData(uuid);
     }
 }
\ No newline at end of file
diff --git a/src/main/java/org/samo_lego/simpleauth/storage/PlayerCache.java b/src/main/java/org/samo_lego/simpleauth/storage/PlayerCache.java
index 426bbf2..b7469c0 100644
--- a/src/main/java/org/samo_lego/simpleauth/storage/PlayerCache.java
+++ b/src/main/java/org/samo_lego/simpleauth/storage/PlayerCache.java
@@ -82,7 +82,7 @@ public class PlayerCache {
             this.lastAir = 300;
         }
 
-        String data = DB.getData(uuid);
+        String data = DB.getUserData(uuid);
         if(!data.isEmpty()) {
             // Getting (hashed) password
             JsonObject json = gson.fromJson(data, JsonObject.class);
diff --git a/src/main/java/org/samo_lego/simpleauth/storage/database/LevelDB.java b/src/main/java/org/samo_lego/simpleauth/storage/database/LevelDB.java
index 2f2a4d6..a9ee8ce 100644
--- a/src/main/java/org/samo_lego/simpleauth/storage/database/LevelDB.java
+++ b/src/main/java/org/samo_lego/simpleauth/storage/database/LevelDB.java
@@ -124,7 +124,7 @@ public class LevelDB {
      * @param uuid uuid of the player to get data for.
      * @return data as string if player has it, otherwise empty string.
      */
-    public static String getData(String uuid){
+    public static String getUserData(String uuid){
         try {
             if(isUserRegistered(uuid))  // Gets password from db and removes "data:" prefix from it
                 return new String(levelDBStore.get(bytes("UUID:" + uuid))).substring(5);
diff --git a/src/main/java/org/samo_lego/simpleauth/storage/database/MongoDB.java b/src/main/java/org/samo_lego/simpleauth/storage/database/MongoDB.java
index 6ee9fcb..d051d2a 100644
--- a/src/main/java/org/samo_lego/simpleauth/storage/database/MongoDB.java
+++ b/src/main/java/org/samo_lego/simpleauth/storage/database/MongoDB.java
@@ -6,9 +6,17 @@ import com.mongodb.client.MongoClients;
 import com.mongodb.client.MongoCollection;
 import com.mongodb.client.MongoDatabase;
 import org.bson.Document;
+import org.iq80.leveldb.DBException;
 
 
+import javax.print.Doc;
+import java.io.IOException;
+
+import static com.mongodb.client.model.Filters.eq;
+import static org.iq80.leveldb.impl.Iq80DBFactory.bytes;
 import static org.samo_lego.simpleauth.SimpleAuth.config;
+import static org.samo_lego.simpleauth.utils.SimpleLogger.logError;
+import static org.samo_lego.simpleauth.utils.SimpleLogger.logInfo;
 
 public class MongoDB {
     private static MongoCollection<Document> collection;
@@ -29,4 +37,37 @@ public class MongoDB {
         MongoDatabase database = mongoClient.getDatabase(config.mongoDBCredentials.databaseName);
         collection = database.getCollection("players");
     }
+
+    public static boolean isUserRegistered(String uuid) {
+        try {
+            return collection.find(eq("UUID", uuid)).iterator().hasNext();
+        } catch (DBException e) {
+            logError(e.getMessage());
+        }
+        return false;
+    }
+
+    public static boolean registerUser(String uuid, String data) {
+        if(!isUserRegistered(uuid)) {
+            collection.insertOne(
+                    new Document(uuid, data)
+            );
+            return true;
+        }
+        return false;
+    }
+
+    public static void deleteUserData(String uuid) {
+        collection.deleteOne(eq("UUID", uuid));
+    }
+
+    public static void updateUserData(String uuid, String data) {
+        collection.updateOne(eq("UUID", uuid), new Document(uuid, data));
+    }
+
+    public static String getUserData(String uuid){
+            if(isUserRegistered(uuid))
+                return collection.find(eq("UUID", uuid)).iterator().next().getString(uuid);
+        return "";
+    }
 }