diff --git a/README.md b/README.md
index 047a7e2..56a85cf 100644
--- a/README.md
+++ b/README.md
@@ -22,14 +22,14 @@ As you can see, the `-target` supports default `golang`, any git URI, or a local
 ### Set custom template variables
 Change any of the following values by passing `-option="Value"` CLI flag to `webrpc-gen`.
 
-| webrpc-gen -option       | Description                               | Default value              | Added in |
-|--------------------------|-------------------------------------------|----------------------------|----------|
-| `-pkg=<name>`            | package name                              | `"proto"`                  |          |
-| `-client`                | generate client code                      | unset (`false`)            |          |
-| `-server`                | generate server code                      | unset (`false`)            |          |
-| `-json=jsoniter`         | use alternative json encoding package     | unset (`"stdlib"`)         | v0.12.0  |
-| `-importTypesFrom=<pkg>` | do not generate types; import from a pkg  | unset (`""`)               | v0.12.0  |
-| `-legacyErrors=true`     | enable legacy errors (v0.10.0 or older)   | unset (`false`)            | v0.11.0  |
+| webrpc-gen -option   | Description                             | Default value | Added in |
+|----------------------|-----------------------------------------|--------------|----------|
+| `-pkg=<name>`        | package name                            | `"proto"`    | v0.5.0   |
+| `-client`            | generate client code                    | `false`      | v0.5.0   |
+| `-server`            | generate server code                    | `false`      | v0.5.0   |
+| `-types=false`       | don't generate types                    | `true`       | v0.13.0  |
+| `-json=jsoniter`     | use alternative json encoding package   | `"stdlib"`   | v0.12.0  |
+| `-legacyErrors=true` | enable legacy errors (v0.10.0 or older) | `false`      | v0.11.0  |
 
 Example:
 ```
diff --git a/enum.go.tmpl b/enum.go.tmpl
index ebd841c..8e24f1e 100644
--- a/enum.go.tmpl
+++ b/enum.go.tmpl
@@ -3,8 +3,11 @@
 {{- $name := .Name -}}
 {{- $type := .Type -}}
 {{- $fields := .Fields -}}
+{{- $opts := .Opts -}}
 
+{{- if $opts.types -}}
 type {{$name}} {{$type}}
+{{- end }}
 
 const (
 {{- range $fields}}
diff --git a/imports.go.tmpl b/imports.go.tmpl
index aac967c..7ad89cb 100644
--- a/imports.go.tmpl
+++ b/imports.go.tmpl
@@ -14,26 +14,32 @@
 	{{- set $stdlibImports "encoding/json" "" -}}
 {{- end -}}
 
-{{- if $opts.client}}
+{{- if or $opts.client (not $opts.types) }}
 	{{- set $stdlibImports "bytes" "" -}}
+{{- end -}}
+
+{{- if $opts.client }}
 	{{- set $stdlibImports "io" "" -}}
 	{{- set $stdlibImports "net/url" "" -}}
 {{- end -}}
-{{- if $opts.server}}
+
+{{- if $opts.server }}
 	{{- set $stdlibImports "strings" "" -}}
 {{- end -}}
 
 {{- /* Import "time" if there's at least one timestamp. */ -}}
+{{ if $opts.types }}
 {{ if eq $opts.importTypesFrom "" }}
-	{{- range $_, $type := $types -}}
-		{{- range $_, $field := $type.Fields -}}
-			{{- if $field.Type -}}
-				{{- if eq $field.Type.Expr "timestamp" -}}
-					{{- set $stdlibImports "time" "" -}}
-				{{- end -}}
-			{{- end -}}
-		{{- end -}}
-	{{- end -}}
+   {{- range $_, $type := $types -}}
+       {{- range $_, $field := $type.Fields -}}
+           {{- if $field.Type -}}
+               {{- if eq $field.Type.Expr "timestamp" -}}
+                   {{- set $stdlibImports "time" "" -}}
+               {{- end -}}
+           {{- end -}}
+       {{- end -}}
+   {{- end -}}
+{{- end -}}
 {{- end -}}
 
 import (
@@ -68,9 +74,11 @@ import (
 		{{- end -}}
 	{{- end -}}
 {{- end }}
+{{- if $opts.types }}
 {{ range $import, $rename := $imports }}
 	{{if ne $rename ""}}{{$rename}} {{end}}"{{$import}}"
 {{- end }}
+{{- end }}
 )
 
 {{- if eq $opts.json "jsoniter" }}
diff --git a/main.go.tmpl b/main.go.tmpl
index 0e6cf43..43ab00f 100644
--- a/main.go.tmpl
+++ b/main.go.tmpl
@@ -5,9 +5,10 @@
 {{- set $opts "pkg" (default .Opts.pkg "proto") -}}
 {{- set $opts "client" (ternary (in .Opts.client "" "true") true false) -}}
 {{- set $opts "server" (ternary (in .Opts.server "" "true") true false) -}}
+{{- set $opts "types" (ternary (eq .Opts.types "false") false true) -}}
 {{- set $opts "json" (default .Opts.json "stdlib") -}}
 {{- set $opts "importTypesFrom" (default .Opts.importTypesFrom "" ) -}}
-{{- set $opts "legacyErrors" (ternary (in .Opts.legacyErrors "true") true false) -}}
+{{- set $opts "legacyErrors" (ternary (in .Opts.legacyErrors "" "true") true false) -}}
 
 {{- $typePrefix := (last (split "/" $opts.importTypesFrom)) -}}
 {{- if ne $typePrefix "" -}}
@@ -87,7 +88,7 @@ func WebRPCSchemaHash() string {
 {{- printf "\n" -}}
 
 {{- if eq $opts.importTypesFrom "" }}
-{{ template "types" dict "Services" .Services "Types" .Types "TypeMap" $typeMap "TypePrefix" $typePrefix}}
+{{ template "types" dict "Services" .Services "Types" .Types "TypeMap" $typeMap "TypePrefix" $typePrefix "Opts" $opts }}
 {{ end -}}
 
 {{- if $opts.server}}
@@ -100,7 +101,7 @@ func WebRPCSchemaHash() string {
 
 {{ template "helpers" . }}
 
-{{- template "errors" dict "WebrpcErrors" .WebrpcErrors "SchemaErrors" .Errors "Opts" $opts "TypePrefix" $typePrefix}}
+{{- template "errors" dict "WebrpcErrors" .WebrpcErrors "SchemaErrors" .Errors "Opts" $opts "TypePrefix" $typePrefix }}
 
 {{- if $opts.legacyErrors }}
 {{ template "legacyErrors" . }}
diff --git a/types.go.tmpl b/types.go.tmpl
index 05df40c..53c5a7e 100644
--- a/types.go.tmpl
+++ b/types.go.tmpl
@@ -3,6 +3,7 @@
 {{- $typePrefix := .TypePrefix -}}
 {{- $types := .Types -}}
 {{- $services := .Services -}}
+{{- $opts := .Opts -}}
 
 {{- if $types -}}
 //
@@ -11,17 +12,17 @@
 {{ range $_, $type := $types -}}
 
 {{- if eq $type.Kind "enum" }}
-{{template "enum" dict "Name" $type.Name "Type" $type.Type "TypePrefix" $typePrefix "Fields" $type.Fields}}
+{{template "enum" dict "Name" $type.Name "Type" $type.Type "TypePrefix" $typePrefix "Fields" $type.Fields "Opts" $opts}}
 {{ end -}}
 
-{{- if eq $type.Kind "struct" }}
+{{- if and (eq $type.Kind "struct") $opts.types }}
 {{template "struct" dict "Name" $type.Name "TypeMap" $typeMap "TypePrefix" $typePrefix "Fields" $type.Fields}}
 {{ end -}}
 
 {{- end -}}
 {{- end -}}
 
-{{- if $services -}}
+{{- if and $services $opts.types -}}
 {{ range $_, $service := $services}}
 type {{$service.Name}} interface {
 	{{- range $_, $method := $service.Methods}}