diff --git a/.gitignore b/.gitignore
new file mode 100644
index 00000000..8950b5f9
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,49 @@
+# Node.js
+node_modules/
+dist/
+build/
+.env.local
+.vercel/
+
+# Logs
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+.pnpm-debug.log*
+.pnpm-store/
+
+# Python
+__pycache__/
+*.pyc
+*.pyo
+*.pyd
+.Python
+env/
+venv/
+*.egg-info/
+.pytest_cache/
+.coverage
+.mypy_cache/
+.ipynb_checkpoints/
+
+# IDEs
+.idea/
+.vscode/
+.DS_Store
+
+# OS generated files
+.DS_Store
+.Trashes
+ehthumbs.db
+Thumbs.db
+
+# Project specific
+# Backend generated files
+backend/upload/tiles/
+backend/upload/shapes/
+# Backend environment variables
+backend/.env
+# Data processing outputs
+data/raw/*.tif
+data/raw/*.zip
+data/raw/*.hgt