diff --git a/.prettierignore b/.prettierignore
new file mode 100644
index 0000000..b59e8ec
--- /dev/null
+++ b/.prettierignore
@@ -0,0 +1,30 @@
+# Dependencies
+node_modules/
+
+# Build output
+dist/
+coverage/
+
+# Environment variables
+.env
+.env.*
+
+# Lock files
+package-lock.json
+
+# Data files
+*.csv
+*.jsonl
+
+# Assets
+*.svg
+*.png
+*.jpg
+*.jpeg
+*.webp
+
+# Database
+*.sql
+
+# Git
+.gitignore
\ No newline at end of file
diff --git a/.prettierrc.json b/.prettierrc.json
new file mode 100644
index 0000000..73576ff
--- /dev/null
+++ b/.prettierrc.json
@@ -0,0 +1,11 @@
+{
+  "semi": true,
+  "singleQuote": true,
+  "trailingComma": "all",
+  "printWidth": 100,
+  "tabWidth": 2,
+  "useTabs": false,
+  "bracketSpacing": true,
+  "arrowParens": "always",
+  "endOfLine": "lf"
+}
diff --git a/package.json b/package.json
new file mode 100644
index 0000000..94e09a1
--- /dev/null
+++ b/package.json
@@ -0,0 +1,9 @@
+{
+  "scripts": {
+    "format": "prettier --write .",
+    "format:check": "prettier --check ."
+  },
+  "devDependencies": {
+    "prettier": "^3.9.10"
+  }
+}