diff --git a/.github/workflows/deno.yml b/.github/workflows/deno.yml
new file mode 100644
index 000000000..02e026c64
--- /dev/null
+++ b/.github/workflows/deno.yml
@@ -0,0 +1,35 @@
+---
+name: Deno build
+
+on:
+  push:
+    branches: [master]
+    tags: ['*']
+  pull_request:
+    branches: [master]
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  test:
+    runs-on: ${{ matrix.os }}
+    timeout-minutes: 5
+    strategy:
+      matrix:
+        os: [ubuntu-22.04, macos-12, windows-2022]
+      fail-fast: false
+
+    steps:
+      - uses: actions/checkout@v4
+      - uses: denoland/setup-deno@v1.1.2
+        with:
+          deno-version: v1.x
+      - name: Collect coverage
+        run: deno task coverage
+        if: ${{ always() }}
+      - uses: codecov/codecov-action@v4
+        if: ${{ always() }}
+        with:
+          files: coverage.lcov
diff --git a/.gitignore b/.gitignore
index d48f05a4e..bd385a876 100644
--- a/.gitignore
+++ b/.gitignore
@@ -20,3 +20,5 @@ dist
 !.yarn/versions
 .*.sw[po]
 .venv/
+coverage
+coverage.lcov
diff --git a/deno.json b/deno.json
index 54553baa5..dc08c1f6c 100644
--- a/deno.json
+++ b/deno.json
@@ -14,6 +14,7 @@
     ]
   },
   "tasks": {
-    "tests": "deno test --allow-read --allow-write cli/"
+    "tests": "deno test --allow-read --allow-write cli/",
+    "coverage": "deno test --allow-read --allow-write --coverage cli/ && deno coverage ./coverage --lcov > coverage.lcov"
   }
 }