diff --git a/.forgejo/workflows/format.yml b/.forgejo/workflows/format.yml
new file mode 100644
index 0000000..fdf56b9
--- /dev/null
+++ b/.forgejo/workflows/format.yml
@@ -0,0 +1,28 @@
+name: Format code with Prettier
+
+on:
+  push:
+    branches: ["master"]
+
+jobs:
+  format:
+    runs-on: linux
+    container: node:20-bookworm
+
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v4
+
+      - name: Install dependencies
+        run: npm install
+
+      - name: Run Prettier
+        run: npx prettier --write .
+
+      - name: Commit changes (if any)
+        run: |
+          git config user.name "forgejo-bot"
+          git config user.email "forgejo-bot@local"
+          git add .
+          git diff --cached --quiet || git commit -m "chore: format with prettier"
+          git push
diff --git a/frontend/package.json b/frontend/package.json
index 040d3ac..6234261 100644
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -31,6 +31,7 @@
         "eslint-plugin-react-hooks": "^7.0.1",
         "eslint-plugin-react-refresh": "^0.5.2",
         "globals": "^17.4.0",
+        "prettier": "^3.8.3",
         "vite": "^8.0.4"
     }
 }