diff --git a/gapic-generator-cloud/lib/gapic/generators/cloud_generator_parameters.rb b/gapic-generator-cloud/lib/gapic/generators/cloud_generator_parameters.rb
index dd5b4ed02..3afb6c5aa 100644
--- a/gapic-generator-cloud/lib/gapic/generators/cloud_generator_parameters.rb
+++ b/gapic-generator-cloud/lib/gapic/generators/cloud_generator_parameters.rb
@@ -21,6 +21,7 @@ module Generators
     # Contains the cloud generator's parameters
     module CloudGeneratorParameters
       BOOL_PARAMETERS_ALIASES = {
+        "ruby-cloud-format"                       => ":format",
         "ruby-cloud-free-tier"                    => ":gem.:free_tier",
         "ruby-cloud-yard-strict"                  => ":gem.:yard_strict",
         "ruby-cloud-generic-endpoint"             => ":gem.:generic_endpoint",
diff --git a/gapic-generator-cloud/test/gapic/schema/cloud_api_test.rb b/gapic-generator-cloud/test/gapic/schema/cloud_api_test.rb
index b599d16d7..788a725b7 100644
--- a/gapic-generator-cloud/test/gapic/schema/cloud_api_test.rb
+++ b/gapic-generator-cloud/test/gapic/schema/cloud_api_test.rb
@@ -37,6 +37,7 @@ def test_parse_parameters_readable
       ["ruby-cloud-is-cloud-product", API_INFO[:is_cloud_product].to_s],
       ["ruby-cloud-generate-metadata", API_INFO[:generate_metadata].to_s],
       ["ruby-cloud-rest-numeric-enums", API_INFO[:rest_numeric_enums].to_s],
+      ["ruby-cloud-format", API_INFO[:format].to_s],
 
       ["ruby-cloud-gem-name", API_INFO[:name]],
       ["ruby-cloud-gem-namespace", API_INFO[:namespace]],
diff --git a/gapic-generator/lib/gapic/generators/base_generator.rb b/gapic-generator/lib/gapic/generators/base_generator.rb
index 064d113fa..90634ca87 100644
--- a/gapic-generator/lib/gapic/generators/base_generator.rb
+++ b/gapic-generator/lib/gapic/generators/base_generator.rb
@@ -74,6 +74,7 @@ def generate_file template, filename, **args
       alias_method :g, :generate_file
 
       def format_files files
+        return files unless @api.format?
         FileFormatter.new(format_config, files).files
       end
 
diff --git a/gapic-generator/lib/gapic/generators/default_generator_parameters.rb b/gapic-generator/lib/gapic/generators/default_generator_parameters.rb
index 3c3bbdaa5..34f530663 100644
--- a/gapic-generator/lib/gapic/generators/default_generator_parameters.rb
+++ b/gapic-generator/lib/gapic/generators/default_generator_parameters.rb
@@ -21,6 +21,7 @@ module Generators
     # Contains the default generator's parameters
     module DefaultGeneratorParameters
       BOOL_PARAMETERS = [
+        ":format",
         ":gem.:free_tier",
         ":gem.:yard_strict",
         ":gem.:generic_endpoint",
diff --git a/gapic-generator/lib/gapic/schema/api.rb b/gapic-generator/lib/gapic/schema/api.rb
index 6c500d14b..d9649934d 100644
--- a/gapic-generator/lib/gapic/schema/api.rb
+++ b/gapic-generator/lib/gapic/schema/api.rb
@@ -289,6 +289,12 @@ def generate_yardoc_snippets?
         configuration.fetch :generate_yardoc_snippets, true
       end
 
+      # Whether to format generated files
+      # @return [Boolean]
+      def format?
+        configuration.fetch :format, true
+      end
+
       # Whether to generate gapic metadata (drift manifest) file
       # @return [Boolean]
       def generate_metadata
diff --git a/gapic-generator/test/gapic/schema/api_test.rb b/gapic-generator/test/gapic/schema/api_test.rb
index 1a156b8fb..58cf5692d 100644
--- a/gapic-generator/test/gapic/schema/api_test.rb
+++ b/gapic-generator/test/gapic/schema/api_test.rb
@@ -16,6 +16,7 @@
 
 require "test_helper"
 require "api_test_resources"
+require "gapic/generators/base_generator"
 
 class ApiTest < Minitest::Test
   API_INFO = ApiTestResources::API_INFO
@@ -41,6 +42,7 @@ def test_parse_parameters_literal
       [":gem.:is_cloud_product", API_INFO[:is_cloud_product].to_s],
       [":gem.:rest_numeric_enums", API_INFO[:rest_numeric_enums].to_s],
       [":generate_metadata", API_INFO[:generate_metadata].to_s],
+      [":format", API_INFO[:format].to_s],
 
       [":gem.:name", API_INFO[:name]],
       [":gem.:namespace", API_INFO[:namespace]],
@@ -91,8 +93,9 @@ def test_parse_parameters_readable
       ["gem-generic-endpoint", API_INFO[:generic_endpoint]],
       ["gem-is-cloud-product", API_INFO[:is_cloud_product]],
       ["rest-numeric-enums", API_INFO[:rest_numeric_enums]],
-      # this parameter has no alias in gapic-generator-vanilla
+      # these parameters have no alias in gapic-generator-vanilla
       [":generate_metadata", API_INFO[:generate_metadata]],
+      [":format", API_INFO[:format]],
 
       ["gem-name", API_INFO[:name]],
       ["gem-namespace", API_INFO[:namespace]],
@@ -147,6 +150,20 @@ def test_parameter_reconstruction
     assert_equal parameter, api.protoc_parameter
   end
 
+  def test_format_default_and_override
+    default_api = Gapic::Schema::Api.new OpenStruct.new(parameter: "", proto_file: [])
+    assert default_api.format?
+
+    unformatted_api = Gapic::Schema::Api.new OpenStruct.new(parameter: ":format=false", proto_file: [])
+    refute unformatted_api.format?
+
+    file = Google::Protobuf::Compiler::CodeGeneratorResponse::File.new(
+      name: "foo.rb", content: "x = 'unformatted'\n"
+    )
+    formatted = Gapic::Generators::BaseGenerator.new(unformatted_api).send(:format_files, [file])
+    assert_equal "x = 'unformatted'\n", formatted.first.content
+  end
+
   private
 
   # Create a list of parameters and values
diff --git a/shared/test_resources/api_test_resources.rb b/shared/test_resources/api_test_resources.rb
index d0b1f6439..299c4a6aa 100644
--- a/shared/test_resources/api_test_resources.rb
+++ b/shared/test_resources/api_test_resources.rb
@@ -28,6 +28,7 @@ module ApiTestResources
     is_cloud_product: true,
     generate_metadata: false,
     rest_numeric_enums: true,
+    format: false,
 
     # string parameters
     name: 'google-cloud-container_analysis-v1',
@@ -113,6 +114,7 @@ module ApiTestResources
       wrapper_gem_name: API_INFO[:wrapper_gem_name_override]
     },
     transports: API_INFO[:transports],
-    generate_metadata: API_INFO[:generate_metadata]
+    generate_metadata: API_INFO[:generate_metadata],
+    format: API_INFO[:format]
   }.freeze
 end