diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..91a646f
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,58 @@
+name: CI
+on:
+  push:
+    branches: [master, 'fix/**', 'feat/**']
+  pull_request:
+    branches: [master]
+
+jobs:
+  backend:
+    runs-on: ubuntu-latest
+    services:
+      postgres:
+        image: postgres:16
+        env:
+          POSTGRES_USER: booklib
+          POSTGRES_PASSWORD: booklib
+          POSTGRES_DB: booklib
+        ports: ['5432:5432']
+        options: >-
+          --health-cmd pg_isready
+          --health-interval 5s
+          --health-timeout 3s
+          --health-retries 10
+      redis:
+        image: redis:7
+        ports: ['6379:6379']
+        options: >-
+          --health-cmd "redis-cli ping"
+          --health-interval 5s
+          --health-timeout 3s
+          --health-retries 10
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-go@v5
+        with:
+          go-version-file: backend/go.mod
+      - name: Format check
+        run: |
+          cd backend
+          OUT=$(gofmt -l .)
+          if [ -n "$OUT" ]; then echo "gofmt violations:"; echo "$OUT"; exit 1; fi
+      - name: Vet
+        run: cd backend && go vet ./...
+      - name: Test
+        run: cd backend && go test -p 1 -count=1 ./...
+        env:
+          DATABASE_URL: postgres://booklib:booklib@localhost:5432/booklib?sslmode=disable
+          REDIS_URL: redis://localhost:6379/0
+
+  frontend:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 20
+      - run: cd frontend && npm ci
+      - run: cd frontend && npm run check