diff --git a/Makefile b/Makefile
index 2c436d8d..fe29a152 100644
--- a/Makefile
+++ b/Makefile
@@ -186,6 +186,7 @@ objects = \
 	common/send-stream.o	\
 	common/send-utils.o	\
 	common/string-table.o	\
+	common/string-utils.o	\
 	common/task-utils.o \
 	common/units.o	\
 	common/utils.o	\
diff --git a/btrfs-corrupt-block.c b/btrfs-corrupt-block.c
index 93bd709a..5472944f 100644
--- a/btrfs-corrupt-block.c
+++ b/btrfs-corrupt-block.c
@@ -33,6 +33,7 @@
 #include "common/help.h"
 #include "common/extent-cache.h"
 #include "common/messages.h"
+#include "common/string-utils.h"
 
 #define FIELD_BUF_LEN 80
 
diff --git a/btrfs-find-root.c b/btrfs-find-root.c
index cab1a52f..fa6717ea 100644
--- a/btrfs-find-root.c
+++ b/btrfs-find-root.c
@@ -29,6 +29,7 @@
 #include "common/extent-cache.h"
 #include "common/help.h"
 #include "common/messages.h"
+#include "common/string-utils.h"
 #include "cmds/commands.h"
 
 /*
diff --git a/btrfs-map-logical.c b/btrfs-map-logical.c
index 06b34672..6c2ad2e3 100644
--- a/btrfs-map-logical.c
+++ b/btrfs-map-logical.c
@@ -34,6 +34,7 @@
 #include "common/utils.h"
 #include "common/help.h"
 #include "common/extent-cache.h"
+#include "common/string-utils.h"
 
 #define BUFFER_SIZE SZ_64K
 
diff --git a/btrfs-select-super.c b/btrfs-select-super.c
index ef8d4bd9..f84c8e68 100644
--- a/btrfs-select-super.c
+++ b/btrfs-select-super.c
@@ -29,6 +29,7 @@
 #include "common/help.h"
 #include "common/open-utils.h"
 #include "common/messages.h"
+#include "common/string-utils.h"
 
 static void print_usage(void)
 {
diff --git a/btrfs.c b/btrfs.c
index 049ecdf0..4c64f953 100644
--- a/btrfs.c
+++ b/btrfs.c
@@ -24,6 +24,7 @@
 #include "kernel-shared/volumes.h"
 #include "crypto/crc32c.h"
 #include "common/utils.h"
+#include "common/string-utils.h"
 #include "common/help.h"
 #include "common/box.h"
 #include "cmds/commands.h"
diff --git a/btrfstune.c b/btrfstune.c
index c36a95a8..9b739576 100644
--- a/btrfstune.c
+++ b/btrfstune.c
@@ -38,6 +38,7 @@
 #include "common/parse-utils.h"
 #include "common/device-scan.h"
 #include "common/messages.h"
+#include "common/string-utils.h"
 #include "common/help.h"
 #include "common/box.h"
 #include "ioctl.h"
diff --git a/check/main.c b/check/main.c
index a0777c6a..df1db36b 100644
--- a/check/main.c
+++ b/check/main.c
@@ -53,6 +53,7 @@
 #include "common/rbtree-utils.h"
 #include "common/help.h"
 #include "common/open-utils.h"
+#include "common/string-utils.h"
 #include "cmds/commands.h"
 #include "mkfs/common.h"
 #include "check/common.h"
diff --git a/cmds/device.c b/cmds/device.c
index 389ed7c6..f6a912f1 100644
--- a/cmds/device.c
+++ b/cmds/device.c
@@ -36,6 +36,7 @@
 #include "common/format-output.h"
 #include "common/open-utils.h"
 #include "common/units.h"
+#include "common/string-utils.h"
 #include "cmds/commands.h"
 #include "cmds/filesystem-usage.h"
 #include "mkfs/common.h"
diff --git a/cmds/inspect-dump-super.c b/cmds/inspect-dump-super.c
index 77a1ba1a..26e2b4ba 100644
--- a/cmds/inspect-dump-super.c
+++ b/cmds/inspect-dump-super.c
@@ -27,6 +27,7 @@
 #include "kernel-shared/zoned.h"
 #include "common/utils.h"
 #include "common/help.h"
+#include "common/string-utils.h"
 #include "cmds/commands.h"
 
 static int load_and_dump_sb(char *filename, int fd, u64 sb_bytenr, int full,
diff --git a/cmds/inspect-dump-tree.c b/cmds/inspect-dump-tree.c
index a6b2983d..0ef9d41c 100644
--- a/cmds/inspect-dump-tree.c
+++ b/cmds/inspect-dump-tree.c
@@ -32,6 +32,7 @@
 #include "common/utils.h"
 #include "common/help.h"
 #include "common/device-scan.h"
+#include "common/string-utils.h"
 #include "cmds/commands.h"
 
 static void print_extents(struct extent_buffer *eb)
diff --git a/cmds/inspect.c b/cmds/inspect.c
index 116319b1..14d73909 100644
--- a/cmds/inspect.c
+++ b/cmds/inspect.c
@@ -30,6 +30,7 @@
 #include "common/help.h"
 #include "common/open-utils.h"
 #include "common/units.h"
+#include "common/string-utils.h"
 #include "cmds/commands.h"
 #include "ioctl.h"
 
diff --git a/cmds/receive.c b/cmds/receive.c
index ff6839f8..a19af7ad 100644
--- a/cmds/receive.c
+++ b/cmds/receive.c
@@ -55,6 +55,7 @@
 #include "common/send-utils.h"
 #include "common/help.h"
 #include "common/path-utils.h"
+#include "common/string-utils.h"
 #include "cmds/commands.h"
 #include "cmds/receive-dump.h"
 #include "ioctl.h"
diff --git a/cmds/replace.c b/cmds/replace.c
index 0f0060e5..16527fba 100644
--- a/cmds/replace.c
+++ b/cmds/replace.c
@@ -38,6 +38,7 @@
 #include "common/help.h"
 #include "common/path-utils.h"
 #include "common/device-utils.h"
+#include "common/string-utils.h"
 #include "cmds/commands.h"
 #include "mkfs/common.h"
 #include "ioctl.h"
diff --git a/cmds/restore.c b/cmds/restore.c
index 4ea91e15..123f5b49 100644
--- a/cmds/restore.c
+++ b/cmds/restore.c
@@ -45,6 +45,7 @@
 #include "common/utils.h"
 #include "common/help.h"
 #include "common/open-utils.h"
+#include "common/string-utils.h"
 #include "cmds/commands.h"
 
 static char fs_name[PATH_MAX];
diff --git a/cmds/send.c b/cmds/send.c
index d9b5aa52..5d53c3b0 100644
--- a/cmds/send.c
+++ b/cmds/send.c
@@ -39,6 +39,7 @@
 #include "common/send-utils.h"
 #include "common/help.h"
 #include "common/path-utils.h"
+#include "common/string-utils.h"
 #include "cmds/commands.h"
 #include "ioctl.h"
 
diff --git a/cmds/subvolume-list.c b/cmds/subvolume-list.c
index 4418fdf0..9f6c4228 100644
--- a/cmds/subvolume-list.c
+++ b/cmds/subvolume-list.c
@@ -25,6 +25,7 @@
 #include "common/help.h"
 #include "common/messages.h"
 #include "common/open-utils.h"
+#include "common/string-utils.h"
 #include "common/utils.h"
 #include "cmds/commands.h"
 #include "ioctl.h"
diff --git a/cmds/subvolume.c b/cmds/subvolume.c
index e63ae081..78b658cf 100644
--- a/cmds/subvolume.c
+++ b/cmds/subvolume.c
@@ -36,6 +36,7 @@
 #include "common/path-utils.h"
 #include "common/device-scan.h"
 #include "common/open-utils.h"
+#include "common/string-utils.h"
 #include "common/units.h"
 #include "cmds/commands.h"
 #include "ioctl.h"
diff --git a/common/fsfeatures.c b/common/fsfeatures.c
index 7aad85da..d9e5bb55 100644
--- a/common/fsfeatures.c
+++ b/common/fsfeatures.c
@@ -21,6 +21,7 @@
 #include <unistd.h>
 #include "kernel-shared/ctree.h"
 #include "common/fsfeatures.h"
+#include "common/string-utils.h"
 #include "common/utils.h"
 
 /*
diff --git a/common/help.c b/common/help.c
index 0441bdbd..9cbef7f4 100644
--- a/common/help.c
+++ b/common/help.c
@@ -21,6 +21,7 @@
 #include <getopt.h>
 #include "common/utils.h"
 #include "common/help.h"
+#include "common/string-utils.h"
 #include "cmds/commands.h"
 
 #define USAGE_SHORT		1U
diff --git a/common/string-utils.c b/common/string-utils.c
new file mode 100644
index 00000000..016c96ac
--- /dev/null
+++ b/common/string-utils.c
@@ -0,0 +1,76 @@
+/*
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License v2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this program; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 021110-1307, USA.
+ */
+
+#include "kerncompat.h"
+#include <stdlib.h>
+#include <stdio.h>
+#include <limits.h>
+#include "string-utils.h"
+
+int string_is_numerical(const char *str)
+{
+	if (!str)
+		return 0;
+	if (!(*str >= '0' && *str <= '9'))
+		return 0;
+	while (*str >= '0' && *str <= '9')
+		str++;
+	if (*str != '\0')
+		return 0;
+	return 1;
+}
+
+int prefixcmp(const char *str, const char *prefix)
+{
+	for (; ; str++, prefix++)
+		if (!*prefix)
+			return 0;
+		else if (*str != *prefix)
+			return (unsigned char)*prefix - (unsigned char)*str;
+}
+
+/*
+ * This function should be only used when parsing command arg, it won't return
+ * error to its caller and rather exit directly just like usage().
+ */
+u64 arg_strtou64(const char *str)
+{
+	u64 value;
+	char *ptr_parse_end = NULL;
+
+	value = strtoull(str, &ptr_parse_end, 0);
+	if (ptr_parse_end && *ptr_parse_end != '\0') {
+		fprintf(stderr, "ERROR: %s is not a valid numeric value.\n",
+			str);
+		exit(1);
+	}
+
+	/*
+	 * if we pass a negative number to strtoull, it will return an
+	 * unexpected number to us, so let's do the check ourselves.
+	 */
+	if (str[0] == '-') {
+		fprintf(stderr, "ERROR: %s: negative value is invalid.\n",
+			str);
+		exit(1);
+	}
+	if (value == ULLONG_MAX) {
+		fprintf(stderr, "ERROR: %s is too large.\n", str);
+		exit(1);
+	}
+	return value;
+}
+
diff --git a/common/string-utils.h b/common/string-utils.h
new file mode 100644
index 00000000..110d34f3
--- /dev/null
+++ b/common/string-utils.h
@@ -0,0 +1,24 @@
+/*
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License v2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this program; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 021110-1307, USA.
+ */
+
+#ifndef __BTRFS_STRING_UTILS_H__
+#define __BTRFS_STRING_UTILS_H__
+
+int string_is_numerical(const char *str);
+int prefixcmp(const char *str, const char *prefix);
+u64 arg_strtou64(const char *str);
+
+#endif
diff --git a/common/utils.c b/common/utils.c
index 00732a21..76ddbb43 100644
--- a/common/utils.c
+++ b/common/utils.c
@@ -1060,28 +1060,6 @@ int count_digits(u64 num)
 	return ret;
 }
 
-int string_is_numerical(const char *str)
-{
-	if (!str)
-		return 0;
-	if (!(*str >= '0' && *str <= '9'))
-		return 0;
-	while (*str >= '0' && *str <= '9')
-		str++;
-	if (*str != '\0')
-		return 0;
-	return 1;
-}
-
-int prefixcmp(const char *str, const char *prefix)
-{
-	for (; ; str++, prefix++)
-		if (!*prefix)
-			return 0;
-		else if (*str != *prefix)
-			return (unsigned char)*prefix - (unsigned char)*str;
-}
-
 const char *subvol_strip_mountpoint(const char *mnt, const char *full_path)
 {
 	int len = strlen(mnt);
@@ -1603,38 +1581,6 @@ out:
 	return ret;
 }
 
-/*
- * This function should be only used when parsing command arg, it won't return
- * error to its caller and rather exit directly just like usage().
- */
-u64 arg_strtou64(const char *str)
-{
-	u64 value;
-	char *ptr_parse_end = NULL;
-
-	value = strtoull(str, &ptr_parse_end, 0);
-	if (ptr_parse_end && *ptr_parse_end != '\0') {
-		fprintf(stderr, "ERROR: %s is not a valid numeric value.\n",
-			str);
-		exit(1);
-	}
-
-	/*
-	 * if we pass a negative number to strtoull, it will return an
-	 * unexpected number to us, so let's do the check ourselves.
-	 */
-	if (str[0] == '-') {
-		fprintf(stderr, "ERROR: %s: negative value is invalid.\n",
-			str);
-		exit(1);
-	}
-	if (value == ULLONG_MAX) {
-		fprintf(stderr, "ERROR: %s is too large.\n", str);
-		exit(1);
-	}
-	return value;
-}
-
 /*
  * For a given:
  * - file or directory return the containing tree root id
diff --git a/common/utils.h b/common/utils.h
index d5ca1103..0c4d6fad 100644
--- a/common/utils.h
+++ b/common/utils.h
@@ -46,7 +46,6 @@ enum exclusive_operation {
 #define BTRFS_CSUM_STRING_LEN		(2 + 2 * BTRFS_CSUM_SIZE + 1)
 void btrfs_format_csum(u16 csum_type, const u8 *data, char *output);
 u64 parse_qgroupid_or_path(const char *p);
-u64 arg_strtou64(const char *str);
 int get_fs_info(const char *path, struct btrfs_ioctl_fs_info_args *fi_args,
 		struct btrfs_ioctl_dev_info_args **di_ret);
 int get_fsid(const char *path, u8 *fsid, int silent);
@@ -77,9 +76,6 @@ const char* btrfs_group_profile_str(u64 flag);
 int count_digits(u64 num);
 u64 div_factor(u64 num, int factor);
 
-int string_is_numerical(const char *str);
-int prefixcmp(const char *str, const char *prefix);
-
 unsigned long total_memory(void);
 
 void print_device_info(struct btrfs_device *device, char *prefix);
diff --git a/image/main.c b/image/main.c
index 22986694..1e6736a9 100644
--- a/image/main.c
+++ b/image/main.c
@@ -48,6 +48,7 @@
 #include "common/help.h"
 #include "common/device-utils.h"
 #include "common/open-utils.h"
+#include "common/string-utils.h"
 #include "image/metadump.h"
 #include "image/sanitize.h"
 #include "ioctl.h"
diff --git a/mkfs/main.c b/mkfs/main.c
index 6d6aaafe..5332ec34 100644
--- a/mkfs/main.c
+++ b/mkfs/main.c
@@ -50,6 +50,7 @@
 #include "common/fsfeatures.h"
 #include "common/box.h"
 #include "common/units.h"
+#include "common/string-utils.h"
 #include "check/qgroup-verify.h"
 #include "mkfs/common.h"
 #include "mkfs/rootdir.h"