diff --git a/ctx.go b/ctx.go
index e70c3672..218bd538 100644
--- a/ctx.go
+++ b/ctx.go
@@ -497,7 +497,7 @@ func (c *Ctx) Is(extension string) bool {
 	}
 
 	return strings.HasPrefix(
-		utils.TrimLeft(utils.GetString(c.fasthttp.Request.Header.ContentType()), ' '),
+		utils.TrimLeft(utils.UnsafeString(c.fasthttp.Request.Header.ContentType()), ' '),
 		extensionHeader,
 	)
 }
@@ -704,8 +704,8 @@ func (c *Ctx) QueryParser(out interface{}) error {
 
 	data := make(map[string][]string)
 	c.fasthttp.QueryArgs().VisitAll(func(key []byte, val []byte) {
-		k := utils.GetString(key)
-		v := utils.GetString(val)
+		k := utils.UnsafeString(key)
+		v := utils.UnsafeString(val)
 		if strings.Index(v, ",") > -1 && equalFieldType(out, reflect.Slice, k) {
 			values := strings.Split(v, ",")
 			for i := 0; i < len(values); i++ {
@@ -920,7 +920,7 @@ func (c *Ctx) SendFile(file string, compress ...bool) error {
 	})
 
 	// Keep original path for mutable params
-	c.pathOriginal = utils.ImmutableString(c.pathOriginal)
+	c.pathOriginal = utils.SafeString(c.pathOriginal)
 	// Disable compression
 	if len(compress) <= 0 || !compress[0] {
 		// https://github.com/valyala/fasthttp/blob/master/fs.go#L46
@@ -995,7 +995,7 @@ func (c *Ctx) Set(key string, val string) {
 }
 
 func (c *Ctx) setCanonical(key string, val string) {
-	c.fasthttp.Response.Header.SetCanonical(utils.GetBytes(key), utils.GetBytes(val))
+	c.fasthttp.Response.Header.SetCanonical(utils.UnsafeBytes(key), utils.UnsafeBytes(val))
 }
 
 // Subdomains returns a string slice of subdomains in the domain name of the request.
@@ -1072,7 +1072,7 @@ func (c *Ctx) WriteString(s string) (int, error) {
 // XHR returns a Boolean property, that is true, if the request's X-Requested-With header field is XMLHttpRequest,
 // indicating that the request was issued by a client library (such as jQuery).
 func (c *Ctx) XHR() bool {
-	return utils.EqualsFold(utils.GetBytes(c.Get(HeaderXRequestedWith)), []byte("xmlhttprequest"))
+	return utils.EqualsFold(utils.UnsafeBytes(c.Get(HeaderXRequestedWith)), []byte("xmlhttprequest"))
 }
 
 // prettifyPath ...
diff --git a/helpers.go b/helpers.go
index 3ddbcace..464304cd 100644
--- a/helpers.go
+++ b/helpers.go
@@ -111,7 +111,7 @@ func removeNewLines(raw string) string {
 		}
 		buf[i] = ' '
 	}
-	raw = utils.GetString(buf)
+	raw = utils.UnsafeString(buf)
 	bytebufferpool.Put(bb)
 
 	return raw
@@ -373,13 +373,13 @@ func (c *testConn) SetReadDeadline(t time.Time) error  { return nil }
 func (c *testConn) SetWriteDeadline(t time.Time) error { return nil }
 
 // getString converts byte slice to a string without memory allocation.
-var getString = utils.GetString
+var getString = utils.UnsafeString
 var getStringImmutable = func(b []byte) string {
 	return string(b)
 }
 
 // getBytes converts string to a byte slice without memory allocation.
-var getBytes = utils.GetBytes
+var getBytes = utils.UnsafeBytes
 var getBytesImmutable = func(s string) (b []byte) {
 	return []byte(s)
 }
diff --git a/helpers_test.go b/helpers_test.go
index 87d2a9d9..223eee2c 100644
--- a/helpers_test.go
+++ b/helpers_test.go
@@ -19,7 +19,7 @@ import (
 func Benchmark_Utils_RemoveNewLines(b *testing.B) {
 	withNL := "foo\r\nSet-Cookie:%20SESSIONID=MaliciousValue\r\n"
 	withoutNL := "foo  Set-Cookie:%20SESSIONID=MaliciousValue  "
-	expected := utils.ImmutableString(withoutNL)
+	expected := utils.SafeString(withoutNL)
 	var res string
 
 	b.Run("withNewlines", func(b *testing.B) {
diff --git a/middleware/basicauth/basicauth.go b/middleware/basicauth/basicauth.go
index 2100659f..347d0e35 100644
--- a/middleware/basicauth/basicauth.go
+++ b/middleware/basicauth/basicauth.go
@@ -117,7 +117,7 @@ func New(config Config) fiber.Handler {
 			if raw, err := base64.StdEncoding.DecodeString(auth[6:]); err == nil {
 
 				// Convert to string
-				cred := utils.GetString(raw)
+				cred := utils.UnsafeString(raw)
 
 				// Find semicolumn
 				for i := 0; i < len(cred); i++ {
diff --git a/middleware/csrf/csrf.go b/middleware/csrf/csrf.go
index e2941959..bb9f4cf6 100644
--- a/middleware/csrf/csrf.go
+++ b/middleware/csrf/csrf.go
@@ -131,7 +131,7 @@ func New(config ...Config) fiber.Handler {
 				return fiber.ErrForbidden
 			}
 			// Some magic to compare both cookie and client csrf token
-			if subtle.ConstantTimeCompare(utils.GetBytes(token), utils.GetBytes(csrf)) != 1 {
+			if subtle.ConstantTimeCompare(utils.UnsafeBytes(token), utils.UnsafeBytes(csrf)) != 1 {
 				// Comparison failed, return forbidden
 				return fiber.ErrForbidden
 			}
diff --git a/utils/convert.go b/utils/convert.go
index eea4560c..38c2f3d7 100644
--- a/utils/convert.go
+++ b/utils/convert.go
@@ -13,13 +13,13 @@ import (
 
 // #nosec G103
 // GetString returns a string pointer without allocation
-func GetString(b []byte) string {
+func UnsafeString(b []byte) string {
 	return *(*string)(unsafe.Pointer(&b))
 }
 
 // #nosec G103
 // GetBytes returns a byte pointer without allocation
-func GetBytes(s string) (bs []byte) {
+func UnsafeBytes(s string) (bs []byte) {
 	sh := (*reflect.StringHeader)(unsafe.Pointer(&s))
 	bh := (*reflect.SliceHeader)(unsafe.Pointer(&bs))
 	bh.Data = sh.Data
@@ -28,9 +28,33 @@ func GetBytes(s string) (bs []byte) {
 	return
 }
 
+// SafeString copies a string to make it immutable
+func SafeString(s string) string {
+	return string(UnsafeBytes(s))
+}
+
+// SafeBytes copies a slive to make it immutable
+func SafeBytes(b []byte) []byte {
+	tmp := make([]byte, len(b))
+	copy(tmp, b)
+	return tmp
+}
+
+// #nosec G103
+// GetString returns a string pointer without allocation
+func GetString(b []byte) string {
+	return UnsafeString(b)
+}
+
+// #nosec G103
+// GetBytes returns a byte pointer without allocation
+func GetBytes(s string) []byte {
+	return UnsafeBytes(s)
+}
+
 // ImmutableString copies a string to make it immutable
 func ImmutableString(s string) string {
-	return string(GetBytes(s))
+	return SafeString(s)
 }
 
 const (