diff --git a/Formula/openapi-generator.rb b/Formula/openapi-generator.rb
new file mode 100644
index 0000000000000..67e43135cab25
--- /dev/null
+++ b/Formula/openapi-generator.rb
@@ -0,0 +1,36 @@
+class OpenapiGenerator < Formula
+  desc "Generate clients, server & docs from an OpenAPI spec (v2, v3)"
+  homepage "https://openapi-generator.tech"
+  url "https://github.com/OpenAPITools/openapi-generator/archive/v3.0.0.tar.gz"
+  sha256 "01b4fde626b96c66edd8be71c34027eeda9ad132cc03890e6f051f505e600207"
+
+  depends_on "maven" => :build
+  depends_on :java => "1.8"
+
+  def install
+    # Need to set JAVA_HOME manually since maven overrides 1.8 with 1.7+
+    cmd = Language::Java.java_home_cmd("1.8")
+    ENV["JAVA_HOME"] = Utils.popen_read(cmd).chomp
+
+    system "mvn", "clean", "package"
+    libexec.install "modules/openapi-generator-cli/target/openapi-generator-cli.jar"
+    bin.write_jar_script libexec/"openapi-generator-cli.jar", "openapi-generator"
+  end
+
+  test do
+    (testpath/"minimal.yaml").write <<~EOS
+      ---
+      swagger: '2.0'
+      info:
+        version: 0.0.0
+        title: Simple API
+      paths:
+        /:
+          get:
+            responses:
+              200:
+                description: OK
+    EOS
+    system "#{bin}/openapi-generator", "generate", "-i", "minimal.yaml", "-l", "openapi"
+  end
+end