diff --git a/modules/local-kms/build.gradle.kts b/modules/local-kms/build.gradle.kts
index c771ff60..87061f17 100644
--- a/modules/local-kms/build.gradle.kts
+++ b/modules/local-kms/build.gradle.kts
@@ -1,3 +1,6 @@
+import org.jetbrains.kotlin.gradle.targets.js.webpack.KotlinWebpackConfig
+import kotlin.apply
+
 plugins {
     kotlin("multiplatform") version "2.0.0"
     id("app.cash.sqldelight") version "2.0.2"
@@ -30,6 +33,22 @@ sqldelight {
 
 kotlin {
     jvm()
+    js {
+        browser {
+            commonWebpackConfig {
+                devServer = KotlinWebpackConfig.DevServer().apply {
+                    port = 8083
+                }
+            }
+        }
+        nodejs {
+            testTask {
+                useMocha {
+                    timeout = "5000"
+                }
+            }
+        }
+    }
 
     sourceSets {
         commonMain {
@@ -49,13 +68,13 @@ kotlin {
             }
         }
 
-//        jsMain {
-//            dependencies {
-//                implementation(npm("typescript", "5.5.3"))
-//                implementation(npm("jose", "5.6.3"))
-//                implementation("org.jetbrains.kotlinx:kotlinx-serialization-json:1.7.1")
-//            }
-//        }
+        jsMain {
+            dependencies {
+                implementation(npm("typescript", "5.5.3"))
+                implementation(npm("jose", "5.6.3"))
+                implementation("org.jetbrains.kotlinx:kotlinx-serialization-json:1.7.1")
+            }
+        }
 
         jvmTest {
             dependencies {
diff --git a/modules/local-kms/src/commonMain/sqldelight/com/sphereon/oid/fed/kms/local/models/1.sqm b/modules/local-kms/src/commonMain/sqldelight/com/sphereon/oid/fed/kms/local/models/1.sqm
index aaee9711..cb48ff6d 100644
--- a/modules/local-kms/src/commonMain/sqldelight/com/sphereon/oid/fed/kms/local/models/1.sqm
+++ b/modules/local-kms/src/commonMain/sqldelight/com/sphereon/oid/fed/kms/local/models/1.sqm
@@ -1,5 +1,5 @@
 CREATE TABLE Keys (
     id TEXT PRIMARY KEY,
     key TEXT NOT NULL,
-    deleted_at TIMESTAMP
+    deleted_at BIGINT
 );
diff --git a/modules/local-kms/src/jsMain/kotlin/com/sphereon/oid/fed/kms/local/database/LocalKmsDatabase.js.kt b/modules/local-kms/src/jsMain/kotlin/com/sphereon/oid/fed/kms/local/database/LocalKmsDatabase.js.kt
new file mode 100644
index 00000000..7aab0e68
--- /dev/null
+++ b/modules/local-kms/src/jsMain/kotlin/com/sphereon/oid/fed/kms/local/database/LocalKmsDatabase.js.kt
@@ -0,0 +1,75 @@
+package com.sphereon.oid.fed.kms.local.database
+
+import app.cash.sqldelight.db.QueryResult
+import app.cash.sqldelight.db.SqlCursor
+import app.cash.sqldelight.db.SqlDriver
+import com.sphereon.oid.fed.kms.local.Constants
+import com.sphereon.oid.fed.kms.local.Database
+import com.sphereon.oid.fed.kms.local.models.Keys
+
+
+actual class LocalKmsDatabase {
+
+    private var database: Database
+
+    init {
+        val driver = getDriver()
+        runMigrations(driver)
+
+        database = Database(driver)
+    }
+
+    private fun getDriver(): SqlDriver {
+        return PlatformSqlDriver().createPostgresDriver(
+            System.getenv(Constants.LOCAL_KMS_DATASOURCE_URL),
+            System.getenv(Constants.LOCAL_KMS_DATASOURCE_USER),
+            System.getenv(Constants.LOCAL_KMS_DATASOURCE_PASSWORD)
+        )
+    }
+
+    private fun runMigrations(driver: SqlDriver) {
+        setupSchemaVersioningTable(driver)
+
+        val currentVersion = getCurrentDatabaseVersion(driver)
+        val newVersion = Database.Schema.version
+
+        if (currentVersion < newVersion) {
+            Database.Schema.migrate(driver, currentVersion, newVersion)
+            updateDatabaseVersion(driver, newVersion)
+        }
+    }
+
+    private fun setupSchemaVersioningTable(driver: SqlDriver) {
+        driver.execute(null, "CREATE TABLE IF NOT EXISTS schema_version (version INTEGER NOT NULL)", 0)
+    }
+
+    private fun getCurrentDatabaseVersion(driver: SqlDriver): Long {
+        val versionQuery = "SELECT version FROM schema_version ORDER BY version DESC LIMIT 1"
+
+        val version = driver.executeQuery(null, versionQuery, parameters = 0, mapper = { cursor: SqlCursor ->
+            QueryResult.Value(if (cursor.next().value) cursor.getLong(0) else null)
+        })
+
+        return version.value ?: 0
+    }
+
+    private fun updateDatabaseVersion(driver: SqlDriver, newVersion: Long) {
+        val updateQuery = "INSERT INTO schema_version (version) VALUES (?)"
+        driver.execute(null, updateQuery, 1) {
+            bindLong(0, newVersion)
+        }
+    }
+
+    actual fun getKey(keyId: String): Keys {
+        return database.keysQueries.findById(keyId).executeAsOneOrNull()
+            ?: throw KeyNotFoundException("$keyId not found")
+    }
+
+    actual fun insertKey(keyId: String, key: String) {
+        database.keysQueries.create(keyId, key).executeAsOneOrNull()
+    }
+
+    actual fun deleteKey(keyId: String) {
+        database.keysQueries.delete(keyId)
+    }
+}
diff --git a/modules/local-kms/src/jsMain/kotlin/com/sphereon/oid/fed/kms/local/database/PlatformSqlDriver.kt b/modules/local-kms/src/jsMain/kotlin/com/sphereon/oid/fed/kms/local/database/PlatformSqlDriver.kt
new file mode 100644
index 00000000..1bc99f62
--- /dev/null
+++ b/modules/local-kms/src/jsMain/kotlin/com/sphereon/oid/fed/kms/local/database/PlatformSqlDriver.kt
@@ -0,0 +1,14 @@
+package com.sphereon.oid.fed.kms.local.database
+
+import app.cash.sqldelight.db.SqlDriver
+import com.sphereon.oid.fed.kms.local.Constants
+
+actual class PlatformSqlDriver {
+    actual fun createPostgresDriver(url: String, username: String, password: String): SqlDriver {
+        throw UnsupportedOperationException(Constants.POSTGRESQL_IS_NOT_SUPPORTED_IN_JS) as Throwable
+    }
+
+    actual fun createSqliteDriver(path: String): SqlDriver {
+        throw UnsupportedOperationException(Constants.SQLITE_IS_NOT_SUPPORTED_IN_JS)
+    }
+}