diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
new file mode 100644
index 0000000..5fd1789
--- /dev/null
+++ b/.github/workflows/tests.yml
@@ -0,0 +1,23 @@
+name: tests
+
+on:
+  push:
+  pull_request:
+
+jobs:
+  unittest:
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, windows-latest]
+        python: ["3.10", "3.12"]
+    runs-on: ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python }}
+          cache: pip
+      - run: pip install -r requirements.txt
+      # Offline: the test package blanks COMFY_API_KEY, so nothing reaches Comfy Cloud.
+      - run: python -m unittest -v