diff --git a/Backend/build.gradle.kts b/Backend/build.gradle.kts
index a147e2d..90f0403 100644
--- a/Backend/build.gradle.kts
+++ b/Backend/build.gradle.kts
@@ -5,7 +5,7 @@ plugins {
     id("io.spring.dependency-management") version "1.0.10.RELEASE"
     kotlin("jvm") version "1.4.21"
     kotlin("plugin.spring") version "1.4.21"
-    kotlin("plugin.jpa") version "1.4.21"
+    // kotlin("plugin.jpa") version "1.4.21"
 }
 
 group = "org.hydev.ios"
@@ -17,16 +17,20 @@ repositories {
 }
 
 dependencies {
-    implementation("org.springframework.boot:spring-boot-starter-data-jpa")
     implementation("org.springframework.boot:spring-boot-starter-web")
     implementation("com.fasterxml.jackson.module:jackson-module-kotlin")
     implementation("org.jetbrains.kotlin:kotlin-reflect")
     implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk8")
-    runtimeOnly("org.mariadb.jdbc:mariadb-java-client")
     testImplementation("org.springframework.boot:spring-boot-starter-test")
-
-    // https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-validation
     implementation("org.springframework.boot", "spring-boot-starter-validation", "2.4.1")
+
+    // MongoDB
+    implementation(group = "org.springframework.data", name = "spring-data-mongodb", version = "3.1.2")
+    implementation(group = "org.springframework.boot", name = "spring-boot-starter-data-mongodb")
+
+    // MariaDB
+    // implementation("org.springframework.boot:spring-boot-starter-data-jpa")
+    // runtimeOnly("org.mariadb.jdbc:mariadb-java-client")
 }
 
 tasks.withType<KotlinCompile> {
diff --git a/Backend/src/main/kotlin/org/hydev/ios/alarmclock/AlarmClockApplication.kt b/Backend/src/main/kotlin/org/hydev/ios/alarmclock/AlarmClockApplication.kt
index c0c5a74..c525f1d 100644
--- a/Backend/src/main/kotlin/org/hydev/ios/alarmclock/AlarmClockApplication.kt
+++ b/Backend/src/main/kotlin/org/hydev/ios/alarmclock/AlarmClockApplication.kt
@@ -1,9 +1,12 @@
 package org.hydev.ios.alarmclock
 
+import org.hydev.ios.alarmclock.data.UserRepo
 import org.springframework.boot.autoconfigure.SpringBootApplication
 import org.springframework.boot.runApplication
+import org.springframework.data.mongodb.repository.config.EnableMongoRepositories
 
 @SpringBootApplication
+@EnableMongoRepositories(basePackageClasses = [UserRepo::class])
 class AlarmClockApplication
 
 fun main(args: Array<String>)
diff --git a/Backend/src/main/kotlin/org/hydev/ios/alarmclock/data/Test.kt b/Backend/src/main/kotlin/org/hydev/ios/alarmclock/data/Test.kt
new file mode 100644
index 0000000..e4c83de
--- /dev/null
+++ b/Backend/src/main/kotlin/org/hydev/ios/alarmclock/data/Test.kt
@@ -0,0 +1,21 @@
+package org.hydev.ios.alarmclock.data
+
+import org.springframework.web.bind.annotation.GetMapping
+import org.springframework.web.bind.annotation.RequestMapping
+import org.springframework.web.bind.annotation.RestController
+
+/**
+ * TODO: Write a description for this class!
+ *
+ * @author HyDEV Team (https://github.com/HyDevelop)
+ * @author Hykilpikonna (https://github.com/hykilpikonna)
+ * @author Vanilla (https://github.com/VergeDX)
+ * @since 2021-01-12 09:28
+ */
+@RestController
+@RequestMapping("/api")
+class Test
+{
+    @GetMapping("/echo")
+    fun echo(message: String?) = message
+}
diff --git a/Backend/src/main/kotlin/org/hydev/ios/alarmclock/data/User.kt b/Backend/src/main/kotlin/org/hydev/ios/alarmclock/data/User.kt
index 09337ac..34545e5 100644
--- a/Backend/src/main/kotlin/org/hydev/ios/alarmclock/data/User.kt
+++ b/Backend/src/main/kotlin/org/hydev/ios/alarmclock/data/User.kt
@@ -2,17 +2,18 @@ package org.hydev.ios.alarmclock.data
 
 import org.hydev.ios.alarmclock.bad
 import org.hydev.ios.alarmclock.passwordHash
+import org.springframework.data.annotation.Id
 import org.springframework.data.domain.Example
 import org.springframework.data.domain.ExampleMatcher
 import org.springframework.data.domain.ExampleMatcher.GenericPropertyMatchers.ignoreCase
-import org.springframework.data.jpa.repository.JpaRepository
+import org.springframework.data.mongodb.core.index.Indexed
+import org.springframework.data.mongodb.core.mapping.Document
+import org.springframework.data.mongodb.repository.MongoRepository
 import org.springframework.web.bind.annotation.GetMapping
 import org.springframework.web.bind.annotation.RequestMapping
 import org.springframework.web.bind.annotation.RequestParam
 import org.springframework.web.bind.annotation.RestController
-import javax.persistence.*
 import javax.validation.constraints.Email
-import javax.validation.constraints.NotNull
 
 /**
  * The database model for an user
@@ -22,21 +23,18 @@ import javax.validation.constraints.NotNull
  * @author Vanilla (https://github.com/VergeDX)
  * @since 2021-01-09 10:48
  */
-@Entity
+@Document(collation = "user")
 data class User(
-    @Id @GeneratedValue(strategy = GenerationType.IDENTITY)
+    @Id
     var id: Long = 0,
 
-    @NotNull @Column(length = 32)
     var name: String,
 
-    @NotNull @Column(length = 256)
+    @Indexed(unique = true)
     var email: String,
 
-    @NotNull @Column(length = 100)
     var passHash: String = "",
 
-    @NotNull @Column(length = 32)
     var passSalt: String = ""
 )
 {
@@ -48,7 +46,7 @@ data class User(
     }
 }
 
-interface UserRepo: JpaRepository<User, Long>
+interface UserRepo: MongoRepository<User, String>
 
 @RestController
 @RequestMapping("/api/user")
diff --git a/Backend/src/main/resources/application.properties b/Backend/src/main/resources/application.properties
index 88f3e57..703e479 100644
--- a/Backend/src/main/resources/application.properties
+++ b/Backend/src/main/resources/application.properties
@@ -1,6 +1,9 @@
 
-spring.datasource.url=jdbc:mariadb://192.168.0.22:3306/clock
-spring.datasource.username=root
-spring.datasource.password=Yay, you found my database password. You're the best hacker in the world.
-spring.datasource.driver-class-name=org.mariadb.jdbc.Driver
-spring.jpa.hibernate.ddl-auto=update
+#spring.datasource.url=jdbc:mariadb://192.168.0.22:3306/clock
+#spring.datasource.username=root
+#spring.datasource.password=<insert password here>
+#spring.datasource.driver-class-name=org.mariadb.jdbc.Driver
+#spring.jpa.hibernate.ddl-auto=update
+
+spring.data.mongodb.uri=mongodb://hykilp:<insert-password-here>@192.168.0.22:27017/?authSource=admin&retryWrites=true
+spring.data.mongodb.database=clock