diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
new file mode 100644
index 0000000..d9bc7f0
--- /dev/null
+++ b/.github/workflows/test.yml
@@ -0,0 +1,18 @@
+name: test
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-go@v5
+        with:
+          go-version-file: go.mod
+          check-latest: true
+      - run: go vet ./...
+      - run: go test -race ./...
diff --git a/README.md b/README.md
index 1350674..cb1203b 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,7 @@
 # go-sqlite-vector
 
+[![test](https://github.com/justintout/go-sqlite-vector/actions/workflows/test.yml/badge.svg)](https://github.com/justintout/go-sqlite-vector/actions/workflows/test.yml)
+
 Pure Go vector search for SQLite. No CGo required.
 
 Register scalar SQL functions on a [zombiezen.com/go/sqlite](https://pkg.go.dev/zombiezen.com/go/sqlite) connection to store embeddings as blobs and run k-nearest neighbor queries with `ORDER BY vector_distance(...) LIMIT k`.