diff --git a/backend/app/database.py b/backend/app/database.py
new file mode 100644
index 0000000..1e6aacd
--- /dev/null
+++ b/backend/app/database.py
@@ -0,0 +1,23 @@
+from sqlalchemy import create_engine
+from sqlalchemy.orm import DeclarativeBase, sessionmaker
+
+DATABASE_URL = "sqlite:///./netmapper.db"
+
+engine = create_engine(
+    DATABASE_URL,
+    connect_args={"check_same_thread": False},
+)
+
+SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
+
+
+class Base(DeclarativeBase):
+    pass
+
+
+def get_db():
+    db = SessionLocal()
+    try:
+        yield db
+    finally:
+        db.close()