diff --git a/.env.example b/.env.example
new file mode 100644
index 0000000..d2fb8ce
--- /dev/null
+++ b/.env.example
@@ -0,0 +1,8 @@
+# Backend
+DEBUG=0
+MAX_UPLOAD_SIZE_MB=500
+TEMP_DIR=/tmp/audio_splitter_web
+CLEANUP_AFTER_SECONDS=3600
+
+# Frontend (development)
+VITE_BACKEND_URL=http://localhost:8000
diff --git a/.gitignore b/.gitignore
index fdf025f..12cd3a5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,3 +7,4 @@ test_data/
 venv/
 web/frontend/node_modules
 TODO.md
+.env