diff --git a/Cargo.lock b/Cargo.lock
index 6fb4373841743..4e831176de0d1 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1706,7 +1706,6 @@ dependencies = [
  "oxc_allocator",
  "oxc_ast",
  "oxc_codegen",
- "oxc_diagnostics",
  "oxc_mangler",
  "oxc_parser",
  "oxc_semantic",
@@ -1988,6 +1987,7 @@ version = "0.30.5"
 dependencies = [
  "assert-unchecked",
  "base64",
+ "cow-utils",
  "dashmap 6.0.1",
  "indexmap",
  "oxc-browserslist",
diff --git a/crates/oxc_minifier/Cargo.toml b/crates/oxc_minifier/Cargo.toml
index 9eb6e50b761e8..a868ebaf4c7ee 100644
--- a/crates/oxc_minifier/Cargo.toml
+++ b/crates/oxc_minifier/Cargo.toml
@@ -21,11 +21,9 @@ test = true
 doctest = false
 
 [dependencies]
-cow-utils = { workspace = true }
 oxc_allocator = { workspace = true }
 oxc_ast = { workspace = true }
 oxc_codegen = { workspace = true }
-oxc_diagnostics = { workspace = true }
 oxc_mangler = { workspace = true }
 oxc_parser = { workspace = true }
 oxc_semantic = { workspace = true }
@@ -33,12 +31,12 @@ oxc_span = { workspace = true }
 oxc_syntax = { workspace = true }
 oxc_traverse = { workspace = true }
 
+cow-utils = { workspace = true }
 num-bigint = { workspace = true }
 num-traits = { workspace = true }
 
 [dev-dependencies]
 oxc_parser = { workspace = true }
 
-cow-utils = { workspace = true }
 insta = { workspace = true }
 pico-args = { workspace = true }
diff --git a/crates/oxc_minifier/src/lib.rs b/crates/oxc_minifier/src/lib.rs
index 2715235572897..9fad23f4f3b00 100644
--- a/crates/oxc_minifier/src/lib.rs
+++ b/crates/oxc_minifier/src/lib.rs
@@ -7,7 +7,6 @@ mod compressor;
 mod keep_var;
 mod node_util;
 mod options;
-mod plugins;
 mod tri;
 mod ty;
 
@@ -18,9 +17,7 @@ use oxc_allocator::Allocator;
 use oxc_ast::ast::Program;
 use oxc_mangler::Mangler;
 
-pub use crate::{
-    ast_passes::CompressorPass, compressor::Compressor, options::CompressOptions, plugins::*,
-};
+pub use crate::{ast_passes::CompressorPass, compressor::Compressor, options::CompressOptions};
 
 #[derive(Debug, Clone, Copy)]
 pub struct MinifierOptions {
diff --git a/crates/oxc_minifier/tests/mod.rs b/crates/oxc_minifier/tests/mod.rs
index a09c3043bacfd..2b6812d0d6be5 100644
--- a/crates/oxc_minifier/tests/mod.rs
+++ b/crates/oxc_minifier/tests/mod.rs
@@ -1,6 +1,5 @@
 mod ast_passes;
 mod mangler;
-mod plugins;
 
 use oxc_allocator::Allocator;
 use oxc_codegen::{CodeGenerator, CodegenOptions};
diff --git a/crates/oxc_minifier/tests/plugins/mod.rs b/crates/oxc_minifier/tests/plugins/mod.rs
deleted file mode 100644
index f43e90253926e..0000000000000
--- a/crates/oxc_minifier/tests/plugins/mod.rs
+++ /dev/null
@@ -1,2 +0,0 @@
-mod inject_global_variables;
-mod replace_global_defines;
diff --git a/crates/oxc_transformer/Cargo.toml b/crates/oxc_transformer/Cargo.toml
index 57f3133dad2b9..fb86c6971aed5 100644
--- a/crates/oxc_transformer/Cargo.toml
+++ b/crates/oxc_transformer/Cargo.toml
@@ -24,6 +24,7 @@ doctest = false
 oxc_allocator = { workspace = true }
 oxc_ast = { workspace = true }
 oxc_diagnostics = { workspace = true }
+oxc_parser = { workspace = true }
 oxc_regular_expression = { workspace = true }
 oxc_semantic = { workspace = true }
 oxc_span = { workspace = true }
@@ -32,6 +33,7 @@ oxc_traverse = { workspace = true }
 
 assert-unchecked = { workspace = true }
 base64 = { workspace = true }
+cow-utils = { workspace = true }
 dashmap = { workspace = true }
 indexmap = { workspace = true }
 oxc-browserslist = { workspace = true }
diff --git a/crates/oxc_transformer/src/lib.rs b/crates/oxc_transformer/src/lib.rs
index 2002b1c731f85..c98189dcd885f 100644
--- a/crates/oxc_transformer/src/lib.rs
+++ b/crates/oxc_transformer/src/lib.rs
@@ -25,6 +25,8 @@ mod react;
 mod regexp;
 mod typescript;
 
+mod plugins;
+
 mod helpers {
     pub mod bindings;
     pub mod module_imports;
@@ -52,6 +54,7 @@ pub use crate::{
     env::{EnvOptions, Targets},
     es2015::{ArrowFunctionsOptions, ES2015Options},
     options::{BabelOptions, TransformOptions},
+    plugins::*,
     react::{JsxOptions, JsxRuntime, ReactRefreshOptions},
     typescript::{RewriteExtensionsMode, TypeScriptOptions},
 };
diff --git a/crates/oxc_minifier/src/plugins/inject_global_variables.rs b/crates/oxc_transformer/src/plugins/inject_global_variables.rs
similarity index 100%
rename from crates/oxc_minifier/src/plugins/inject_global_variables.rs
rename to crates/oxc_transformer/src/plugins/inject_global_variables.rs
diff --git a/crates/oxc_minifier/src/plugins/mod.rs b/crates/oxc_transformer/src/plugins/mod.rs
similarity index 100%
rename from crates/oxc_minifier/src/plugins/mod.rs
rename to crates/oxc_transformer/src/plugins/mod.rs
diff --git a/crates/oxc_minifier/src/plugins/replace_global_defines.rs b/crates/oxc_transformer/src/plugins/replace_global_defines.rs
similarity index 100%
rename from crates/oxc_minifier/src/plugins/replace_global_defines.rs
rename to crates/oxc_transformer/src/plugins/replace_global_defines.rs
diff --git a/crates/oxc_transformer/tests/mod.rs b/crates/oxc_transformer/tests/mod.rs
new file mode 100644
index 0000000000000..85cf1a563a20d
--- /dev/null
+++ b/crates/oxc_transformer/tests/mod.rs
@@ -0,0 +1 @@
+mod plugins;
diff --git a/crates/oxc_minifier/tests/plugins/inject_global_variables.rs b/crates/oxc_transformer/tests/plugins/inject_global_variables.rs
similarity index 98%
rename from crates/oxc_minifier/tests/plugins/inject_global_variables.rs
rename to crates/oxc_transformer/tests/plugins/inject_global_variables.rs
index 6793093b45f32..fb94828446cdd 100644
--- a/crates/oxc_minifier/tests/plugins/inject_global_variables.rs
+++ b/crates/oxc_transformer/tests/plugins/inject_global_variables.rs
@@ -4,12 +4,12 @@
 
 use oxc_allocator::Allocator;
 use oxc_codegen::{CodeGenerator, CodegenOptions};
-use oxc_minifier::{InjectGlobalVariables, InjectGlobalVariablesConfig, InjectImport};
 use oxc_parser::Parser;
 use oxc_semantic::SemanticBuilder;
 use oxc_span::SourceType;
+use oxc_transformer::{InjectGlobalVariables, InjectGlobalVariablesConfig, InjectImport};
 
-use crate::run;
+use super::run;
 
 pub(crate) fn test(source_text: &str, expected: &str, config: InjectGlobalVariablesConfig) {
     let source_type = SourceType::default();
@@ -25,7 +25,7 @@ pub(crate) fn test(source_text: &str, expected: &str, config: InjectGlobalVariab
         .with_options(CodegenOptions { single_quote: true, ..CodegenOptions::default() })
         .build(program)
         .source_text;
-    let expected = run(expected, source_type, None);
+    let expected = run(expected, source_type);
     assert_eq!(result, expected, "for source {source_text}");
 }
 
diff --git a/crates/oxc_transformer/tests/plugins/mod.rs b/crates/oxc_transformer/tests/plugins/mod.rs
new file mode 100644
index 0000000000000..8c72a1f7fd7bc
--- /dev/null
+++ b/crates/oxc_transformer/tests/plugins/mod.rs
@@ -0,0 +1,17 @@
+mod inject_global_variables;
+mod replace_global_defines;
+
+use oxc_allocator::Allocator;
+use oxc_codegen::{CodeGenerator, CodegenOptions};
+use oxc_parser::Parser;
+use oxc_span::SourceType;
+
+fn run(source_text: &str, source_type: SourceType) -> String {
+    let allocator = Allocator::default();
+    let ret = Parser::new(&allocator, source_text, source_type).parse();
+    let program = allocator.alloc(ret.program);
+    CodeGenerator::new()
+        .with_options(CodegenOptions { single_quote: true, ..CodegenOptions::default() })
+        .build(program)
+        .source_text
+}
diff --git a/crates/oxc_minifier/tests/plugins/replace_global_defines.rs b/crates/oxc_transformer/tests/plugins/replace_global_defines.rs
similarity index 95%
rename from crates/oxc_minifier/tests/plugins/replace_global_defines.rs
rename to crates/oxc_transformer/tests/plugins/replace_global_defines.rs
index 1755855e197c9..feee297338fad 100644
--- a/crates/oxc_minifier/tests/plugins/replace_global_defines.rs
+++ b/crates/oxc_transformer/tests/plugins/replace_global_defines.rs
@@ -1,11 +1,11 @@
 use oxc_allocator::Allocator;
 use oxc_codegen::{CodeGenerator, CodegenOptions};
-use oxc_minifier::{ReplaceGlobalDefines, ReplaceGlobalDefinesConfig};
 use oxc_parser::Parser;
 use oxc_semantic::SemanticBuilder;
 use oxc_span::SourceType;
+use oxc_transformer::{ReplaceGlobalDefines, ReplaceGlobalDefinesConfig};
 
-use crate::run;
+use super::run;
 
 pub(crate) fn test(source_text: &str, expected: &str, config: ReplaceGlobalDefinesConfig) {
     let source_type = SourceType::default();
@@ -21,7 +21,7 @@ pub(crate) fn test(source_text: &str, expected: &str, config: ReplaceGlobalDefin
         .with_options(CodegenOptions { single_quote: true, ..CodegenOptions::default() })
         .build(program)
         .source_text;
-    let expected = run(expected, source_type, None);
+    let expected = run(expected, source_type);
     assert_eq!(result, expected, "for source {source_text}");
 }