diff --git a/internal/cli/browse.go b/internal/cli/browse.go
new file mode 100644
index 0000000..64f1317
--- /dev/null
+++ b/internal/cli/browse.go
@@ -0,0 +1,40 @@
+package cli
+
+import (
+	"fmt"
+	"net/url"
+	"os/exec"
+	"runtime"
+
+	"github.com/spf13/cobra"
+)
+
+var browseCmd = &cobra.Command{
+	Use:   "browse [handle/repo]",
+	Short: "Open a Tangled repository in a browser",
+	Args:  cobra.MaximumNArgs(1),
+	RunE: func(cmd *cobra.Command, args []string) error {
+		handle, repo, err := resolveTarget(cmd.Context(), args)
+		if err != nil {
+			return err
+		}
+
+		repoURL := "https://tangled.org/" + url.PathEscape(handle) + "/" + url.PathEscape(repo)
+		if err := openURL(repoURL); err != nil {
+			return fmt.Errorf("open browser: %w", err)
+		}
+		return nil
+	},
+}
+
+// openURL passes the URL as an argument instead of through a shell.
+func openURL(rawURL string) error {
+	switch runtime.GOOS {
+	case "darwin":
+		return exec.Command("open", "--", rawURL).Start()
+	case "windows":
+		return exec.Command("rundll32.exe", "url.dll,FileProtocolHandler", rawURL).Start()
+	default:
+		return exec.Command("xdg-open", rawURL).Start()
+	}
+}