diff --git a/server/build.go b/server/build.go
index d2032d13..c9619a44 100644
--- a/server/build.go
+++ b/server/build.go
@@ -25,9 +25,10 @@ type BuildTask struct {
 	Alias        map[string]string `json:"alias"`
 	Deps         PkgSlice          `json:"deps"`
 	Target       string            `json:"target"`
+	DevMode      bool              `json:"dev"`
 	BundleMode   bool              `json:"bundle"`
 	NoRequire    bool              `json:"noRequire"`
-	DevMode      bool              `json:"dev"`
+	KeepNames    bool              `json:"keepNames"`
 
 	// state
 	id    string
@@ -50,6 +51,9 @@ func (task *BuildTask) ID() string {
 	if task.NoRequire {
 		name += ".nr"
 	}
+	if task.KeepNames {
+		name += ".kn"
+	}
 	if task.DevMode {
 		name += ".development"
 	}
@@ -329,7 +333,7 @@ esbuild:
 		MinifyWhitespace:  !task.DevMode,
 		MinifyIdentifiers: !task.DevMode,
 		MinifySyntax:      !task.DevMode,
-		KeepNames:         true, // prevent class/function names erasing
+		KeepNames:         task.KeepNames, // prevent class/function names erasing
 		Plugins:           []api.Plugin{esmResolverPlugin},
 		Loader: map[string]api.Loader{
 			".wasm":  api.LoaderDataURL,
diff --git a/server/query.go b/server/query.go
index 16752fda..f316d6a2 100644
--- a/server/query.go
+++ b/server/query.go
@@ -409,6 +409,7 @@ func query(devMode bool) rex.Handle {
 		isWorker := ctx.Form.Has("worker")
 		noCheck := ctx.Form.Has("no-check")
 		noRequire := ctx.Form.Has("no-require")
+		keepNames := ctx.Form.Has("keep-names")
 
 		// force react/jsx-dev-runtime and react-refresh into `dev` mode
 		if !isDev {
@@ -454,6 +455,10 @@ func query(devMode bool) rex.Handle {
 						submodule = strings.TrimSuffix(submodule, ".development")
 						isDev = true
 					}
+					if endsWith(submodule, ".kn") {
+						submodule = strings.TrimSuffix(submodule, ".kn")
+						keepNames = true
+					}
 					if endsWith(submodule, ".nr") {
 						submodule = strings.TrimSuffix(submodule, ".nr")
 						noRequire = true
@@ -538,9 +543,10 @@ func query(devMode bool) rex.Handle {
 			Alias:        alias,
 			Deps:         deps,
 			Target:       target,
+			DevMode:      isDev,
 			BundleMode:   isBundleMode || isWorker,
 			NoRequire:    noRequire,
-			DevMode:      isDev,
+			KeepNames:    keepNames,
 			stage:        "init",
 		}
 		taskID := task.ID()