diff --git a/README.md b/README.md
index 7dcbd5f..c2a32b3 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,12 @@
 # protobuf-gen-go
 
+![Static Badge](https://img.shields.io/badge/Go-reference-00ADD8?style=flat-square&logo=go&logoColor=white)
+![Static Badge](https://img.shields.io/badge/Go-golang-00ADD8?style=flat-square&logo=go&logoColor=white)
+![Static Badge](https://img.shields.io/badge/Go%20version-%3E=1.16-00ADD8?style=flat-square&logo=go&logoColor=white)
+![Static Badge](https://img.shields.io/badge/Protobuf-protocol--buffers-00979D?style=flat-square&logoColor=white)
+![Static Badge](https://img.shields.io/badge/gRPC-%3E=1.2-00979D?style=flat-square&logo=grpc&logoColor=white)
+![GitHub tag (with filter)](https://img.shields.io/github/v/tag/fynntang/protobuf-gen-go?style=flat-square)
+
 ## Usage
 
 ### Install `protoc-gen-go-http`
diff --git a/protoc-gen-go-crud/README.md b/protoc-gen-go-crud/README.md
index abf3186..275ee89 100644
--- a/protoc-gen-go-crud/README.md
+++ b/protoc-gen-go-crud/README.md
@@ -1 +1,4 @@
 # protoc-gen-go-http
+
+[![Go Reference](https://pkg.go.dev/badge/github.com/fynntang/protobuf-gen-go.svg)](https://pkg.go.dev/github.com/fynntang/protobuf-gen-go)
+![GitHub go.mod Go version (subdirectory of monorepo)](https://img.shields.io/github/go-mod/go-version/fynntang/protobuf-gen-go?filename=protoc-gen-go-crud%2Fgo.mod&style=flat-square&logo=go&logoColor=white)
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diff --git a/protoc-gen-go-crud/protoc-gen-go-crud b/protoc-gen-go-crud/protoc-gen-go-crud
deleted file mode 100755
index 80b784c..0000000
Binary files a/protoc-gen-go-crud/protoc-gen-go-crud and /dev/null differ
diff --git a/protoc-gen-go-http/README.md b/protoc-gen-go-http/README.md
index abf3186..5bd2b2e 100644
--- a/protoc-gen-go-http/README.md
+++ b/protoc-gen-go-http/README.md
@@ -1 +1,4 @@
 # protoc-gen-go-http
+
+[![Go Reference](https://pkg.go.dev/badge/github.com/fynntang/protobuf-gen-go.svg)](https://pkg.go.dev/github.com/fynntang/protobuf-gen-go)
+![GitHub go.mod Go version (subdirectory of monorepo)](https://img.shields.io/github/go-mod/go-version/fynntang/protobuf-gen-go?filename=protoc-gen-go-http%2Fgo.mod&style=flat-square&logo=go&logoColor=white)
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diff --git a/protoc-go-inject-tags/README.md b/protoc-go-inject-tags/README.md
new file mode 100644
index 0000000..e2e79c7
--- /dev/null
+++ b/protoc-go-inject-tags/README.md
@@ -0,0 +1,4 @@
+# protoc-go-inject-tags
+
+[![Go Reference](https://pkg.go.dev/badge/github.com/fynntang/protobuf-gen-go.svg)](https://pkg.go.dev/github.com/fynntang/protobuf-gen-go)
+![GitHub go.mod Go version (subdirectory of monorepo)](https://img.shields.io/github/go-mod/go-version/fynntang/protobuf-gen-go?filename=protoc-go-inject-tags%2Fgo.mod&style=flat-square&logo=go&logoColor=white&label=protoc-go-inject-tags)
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