diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
new file mode 100644
index 0000000..a78b3d4
--- /dev/null
+++ b/.github/workflows/main.yml
@@ -0,0 +1,42 @@
+name: build
+on:
+  pull_request:
+  push:
+jobs:
+  run:
+    runs-on: ${{ matrix.operating-system }}
+    strategy:
+      matrix:
+        operating-system: [ubuntu-latest, windows-latest, macos-latest]
+        php-versions: ['7.1', '7.2', '7.3', '7.4']
+    name: PHP ${{ matrix.php-versions }} Test on ${{ matrix.operating-system }}
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v2
+
+    - name: Setup PHP
+      uses: shivammathur/setup-php@v2
+      with:
+        php-version: ${{ matrix.php-versions }}
+        extensions: mbstring, intl
+        coverage: xdebug        
+
+    - name: Check environment
+      run: |
+        php --version
+        composer --version
+
+    - name: Install dependencies
+      run: composer update -n --prefer-dist
+
+    - name: Run tests
+      run: |
+        vendor/bin/phpunit --coverage-text --coverage-clover build/logs/clover.xml
+        PHP_CS_FIXER_IGNORE_ENV=1 php vendor/bin/php-cs-fixer --diff --dry-run -v fix
+        vendor/bin/psalm
+
+    - name: Collect code coverage
+      env:
+        COVERALLS_REPO_TOKEN: ${{secrets.GITHUB_TOKEN}}
+      if: success()
+      run: vendor/bin/coveralls build/logs/clover.xml