diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
new file mode 100644
index 00000000..371040a4
--- /dev/null
+++ b/.github/workflows/test.yml
@@ -0,0 +1,50 @@
+name: Test
+
+on:
+  push:
+    branches: [ "master", "main" ]
+  pull_request:
+    branches: [ "master", "main" ]
+
+permissions:
+  contents: read
+
+jobs:
+  build-and-test:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ["3.9", "3.11", "3.13"]
+    
+    steps:
+      - uses: actions/checkout@v4
+      
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+      
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install ".[test]"
+      
+      - name: Run pytest tests
+        run: |
+          mkdir -p test-results
+          pytest --junitxml=test-results/junit.xml -o junit_family=legacy
+      
+      - name: Upload test results
+        if: always()
+        uses: actions/upload-artifact@v4
+        with:
+          name: test-results-${{ matrix.python-version }}
+          path: test-results/
+      
+      - name: Color TextModeTrees
+        run: |
+          udapy read.Conllu files=udapi/core/tests/data/babinsky.conllu write.TextModeTrees color=1
+      
+      - name: External tests
+        run: |
+          cd udapi/core/tests && bash external_tests.sh
diff --git a/.gitignore b/.gitignore
index a75e7c05..325f4ab2 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,6 @@
 .idea
 *.pyc
 .cache
+build/
+*.egg-info/
+test-results/