diff --git a/.github/workflows/clang-format.yml b/.github/workflows/clang-format.yml
new file mode 100644
index 0000000..38a328a
--- /dev/null
+++ b/.github/workflows/clang-format.yml
@@ -0,0 +1,40 @@
+name: Clang-format check
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+
+permissions:
+  contents: read
+  checks: write
+  issues: write
+  pull-requests: write
+
+jobs:
+  clang-format-check:
+    runs-on: ubuntu-latest
+    timeout-minutes: 5
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v5
+
+      - name: Install clang-format
+        run: sudo apt-get install -y clang-format-19
+
+      - name: Run clang-format
+        run: >
+          git ls-files '*.cpp' '*.c' '*.hpp' '*.h' |
+          xargs -r clang-format-19 -i
+
+      - name: Suggest clang-format fixes
+        if: github.event_name == 'pull_request'
+        uses: reviewdog/action-suggester@v1
+        with:
+          tool_name: clang-format-19
+          fail_level: any
+          level: warning
+
+      - name: Verify no formatting changes are needed
+        run: git --no-pager diff --exit-code -- .