diff --git a/openflare_server/utils/browser.go b/openflare_server/utils/browser.go
deleted file mode 100644
index 48c00ea3..00000000
--- a/openflare_server/utils/browser.go
+++ /dev/null
@@ -1,23 +0,0 @@
-package utils
-
-import (
-	"log/slog"
-	"os/exec"
-	"runtime"
-)
-
-func OpenBrowser(url string) {
-	var err error
-
-	switch runtime.GOOS {
-	case "linux":
-		err = exec.Command("xdg-open", url).Start()
-	case "windows":
-		err = exec.Command("rundll32", "url.dll,FileProtocolHandler", url).Start()
-	case "darwin":
-		err = exec.Command("open", url).Start()
-	}
-	if err != nil {
-		slog.Error("open browser failed", "error", err)
-	}
-}
diff --git a/openflare_server/utils/html.go b/openflare_server/utils/html.go
deleted file mode 100644
index 7dc2861f..00000000
--- a/openflare_server/utils/html.go
+++ /dev/null
@@ -1,7 +0,0 @@
-package utils
-
-import "html/template"
-
-func UnescapeHTML(x string) interface{} {
-	return template.HTML(x)
-}
diff --git a/openflare_server/utils/math.go b/openflare_server/utils/math.go
deleted file mode 100644
index c2e31406..00000000
--- a/openflare_server/utils/math.go
+++ /dev/null
@@ -1,15 +0,0 @@
-package utils
-
-func IntMax(a int, b int) int {
-	if a >= b {
-		return a
-	}
-	return b
-}
-
-func Max(a int, b int) int {
-	if a >= b {
-		return a
-	}
-	return b
-}
diff --git a/openflare_server/utils/uuid.go b/openflare_server/utils/uuid.go
deleted file mode 100644
index 0ada3793..00000000
--- a/openflare_server/utils/uuid.go
+++ /dev/null
@@ -1,13 +0,0 @@
-package utils
-
-import (
-	"strings"
-
-	"github.com/google/uuid"
-)
-
-func GetUUID() string {
-	code := uuid.New().String()
-	code = strings.Replace(code, "-", "", -1)
-	return code
-}