diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..760de88
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,32 @@
+name: CI
+
+on:
+  push:
+    branches: [master]
+  pull_request:
+    branches: [master]
+
+jobs:
+  test:
+    name: Node.js ${{ matrix.node-version }}
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        node-version: [18, 20, 22]
+      fail-fast: false
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v4
+        with:
+          node-version: ${{ matrix.node-version }}
+          cache: npm
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Test
+        run: npm test
diff --git a/README.md b/README.md
index 3bb0bd6..c81ae9d 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,6 @@
 # filejson
 
+[![CI](https://github.com/bchr02/filejson/actions/workflows/ci.yml/badge.svg)](https://github.com/bchr02/filejson/actions/workflows/ci.yml)
 [![npm version](https://img.shields.io/npm/v/filejson.svg)](https://www.npmjs.com/package/filejson)
 [![npm downloads](https://img.shields.io/npm/dm/filejson.svg)](https://www.npmjs.com/package/filejson)
 [![Node.js Version](https://img.shields.io/node/v/filejson.svg)](https://nodejs.org)