diff --git a/src/client/CMakeLists.txt b/src/client/CMakeLists.txt
index 174023d4..bf99d0c1 100644
--- a/src/client/CMakeLists.txt
+++ b/src/client/CMakeLists.txt
@@ -88,7 +88,7 @@ add_executable(test_cluster_client
 	EXCLUDE_FROM_ALL
 	../test/test_cluster_client.cpp
 	pg_states.cpp osd_ops.cpp cluster_client.cpp cluster_client_list.cpp cluster_client_wb.cpp msgr_op.cpp ../test/mock/messenger.cpp msgr_stop.cpp
-	etcd_state_client.cpp ../util/timerfd_manager.cpp ../util/str_util.cpp ../../json11/json11.cpp
+	etcd_state_client.cpp ../util/timerfd_manager.cpp ../util/str_util.cpp ../util/json_util.cpp ../../json11/json11.cpp
 )
 target_compile_definitions(test_cluster_client PUBLIC -D__MOCK__)
 target_include_directories(test_cluster_client BEFORE PUBLIC ${CMAKE_SOURCE_DIR}/src/test/mock)
diff --git a/src/client/cluster_client.cpp b/src/client/cluster_client.cpp
index 01dd81a2..3a5533db 100644
--- a/src/client/cluster_client.cpp
+++ b/src/client/cluster_client.cpp
@@ -4,7 +4,7 @@
 #include <stdexcept>
 #include <assert.h>
 #include "cluster_client_impl.h"
-#include "http_client.h" // json_is_true
+#include "json_util.h"
 
 cluster_client_t::cluster_client_t(ring_loop_t *ringloop, timerfd_manager_t *tfd, json11::Json config)
 {
diff --git a/src/client/http_client.cpp b/src/client/http_client.cpp
index d0ec9a49..4b60c645 100644
--- a/src/client/http_client.cpp
+++ b/src/client/http_client.cpp
@@ -15,6 +15,7 @@
 
 #include "addr_util.h"
 #include "str_util.h"
+#include "json_util.h"
 #include "json11/json11.hpp"
 #include "http_client.h"
 #include "timerfd_manager.h"
@@ -724,22 +725,3 @@ static bool ws_parse_frame(std::string & buf, int & type, std::string & res)
     buf = buf.substr(hdr+len);
     return true;
 }
-
-// FIXME: move to utils
-bool json_is_true(const json11::Json & val)
-{
-    if (val.is_string())
-        return val == "true" || val == "yes" || val == "1";
-    return val.bool_value();
-}
-
-bool json_is_false(const json11::Json & val)
-{
-    if (val.is_string())
-        return val.string_value() == "false" || val.string_value() == "no" || val.string_value() == "0";
-    if (val.is_number())
-        return val.number_value() == 0;
-    if (val.is_bool())
-        return !val.bool_value();
-    return false;
-}
diff --git a/src/client/http_client.h b/src/client/http_client.h
index 29c5d8c4..b57d3a4c 100644
--- a/src/client/http_client.h
+++ b/src/client/http_client.h
@@ -48,9 +48,3 @@ void http_request(http_co_t *handler, const std::string & host, const std::strin
     const http_options_t & options, std::function<void(const http_response_t *response)> response_callback);
 void http_post_message(http_co_t *handler, int type, const std::string & msg);
 void http_close(http_co_t *co);
-
-// Utils
-std::string strtolower(const std::string & in);
-// FIXME: move to json11
-bool json_is_true(const json11::Json & val);
-bool json_is_false(const json11::Json & val);
diff --git a/src/cmd/cli_fix.cpp b/src/cmd/cli_fix.cpp
index 61cb7afc..9016fcfb 100644
--- a/src/cmd/cli_fix.cpp
+++ b/src/cmd/cli_fix.cpp
@@ -5,6 +5,7 @@
 #include "cluster_client.h"
 #include "pg_states.h"
 #include "str_util.h"
+#include "json_util.h"
 
 struct cli_fix_t
 {
diff --git a/src/cmd/cli_fix.h b/src/cmd/cli_fix.h
index 2a13f08f..9371742f 100644
--- a/src/cmd/cli_fix.h
+++ b/src/cmd/cli_fix.h
@@ -21,6 +21,3 @@ template<class T> void remove_duplicates(std::vector<T> & ret)
     }
     ret.resize(j+1);
 }
-
-// from http_client.cpp...
-bool json_is_false(const json11::Json & val);
diff --git a/src/cmd/cli_modify_osd.cpp b/src/cmd/cli_modify_osd.cpp
index 0810727c..5fc39230 100644
--- a/src/cmd/cli_modify_osd.cpp
+++ b/src/cmd/cli_modify_osd.cpp
@@ -4,6 +4,7 @@
 #include "cli.h"
 #include "cluster_client.h"
 #include "str_util.h"
+#include "json_util.h"
 #include "http_client.h"
 
 // Reweight OSD, change tags or set noout flag
diff --git a/src/cmd/cli_status.cpp b/src/cmd/cli_status.cpp
index ae32fcaa..7e12bec7 100644
--- a/src/cmd/cli_status.cpp
+++ b/src/cmd/cli_status.cpp
@@ -4,6 +4,7 @@
 #include "cli.h"
 #include "cluster_client.h"
 #include "str_util.h"
+#include "json_util.h"
 #include "pg_states.h"
 #include "http_client.h"
 
diff --git a/src/disk_tool/disk_tool.h b/src/disk_tool/disk_tool.h
index 80549054..7dc854e0 100644
--- a/src/disk_tool/disk_tool.h
+++ b/src/disk_tool/disk_tool.h
@@ -136,7 +136,6 @@ uint64_t sscanf_json(const char *fmt, const json11::Json & str);
 void fromhexstr(const std::string & from, int bytes, uint8_t *to);
 int disable_cache(std::string dev);
 std::string get_parent_device(std::string dev);
-bool json_is_true(const json11::Json & val);
 int shell_exec(const std::vector<std::string> & cmd, const std::string & in, std::string *out, std::string *err);
 int write_zero(int fd, uint64_t offset, uint64_t size);
 json11::Json read_parttable(std::string dev);
diff --git a/src/disk_tool/disk_tool_prepare.cpp b/src/disk_tool/disk_tool_prepare.cpp
index 2e94c319..8c9958a2 100644
--- a/src/disk_tool/disk_tool_prepare.cpp
+++ b/src/disk_tool/disk_tool_prepare.cpp
@@ -3,6 +3,7 @@
 
 #include "disk_tool.h"
 #include "str_util.h"
+#include "json_util.h"
 #include "osd_id.h"
 
 int disk_tool_t::prepare_one(std::map<std::string, std::string> options, int is_hdd)
diff --git a/src/disk_tool/disk_tool_udev.cpp b/src/disk_tool/disk_tool_udev.cpp
index 7b7f1e81..f362620f 100644
--- a/src/disk_tool/disk_tool_udev.cpp
+++ b/src/disk_tool/disk_tool_udev.cpp
@@ -6,6 +6,7 @@
 #include "disk_tool.h"
 #include "rw_blocking.h"
 #include "str_util.h"
+#include "json_util.h"
 
 struct __attribute__((__packed__)) vitastor_disk_superblock_t
 {
diff --git a/src/disk_tool/disk_tool_utils.cpp b/src/disk_tool/disk_tool_utils.cpp
index ab94db85..906b4196 100644
--- a/src/disk_tool/disk_tool_utils.cpp
+++ b/src/disk_tool/disk_tool_utils.cpp
@@ -147,13 +147,6 @@ std::string get_parent_device(std::string dev)
     return dev.substr(0, i);
 }
 
-bool json_is_true(const json11::Json & val)
-{
-    if (val.is_string())
-        return val == "true" || val == "yes" || val == "1";
-    return val.bool_value();
-}
-
 int shell_exec(const std::vector<std::string> & cmd, const std::string & in, std::string *out, std::string *err)
 {
     int child_stdin[2], child_stdout[2], child_stderr[2];
diff --git a/src/nfs/nfs_proxy.cpp b/src/nfs/nfs_proxy.cpp
index b3340691..25d99e61 100644
--- a/src/nfs/nfs_proxy.cpp
+++ b/src/nfs/nfs_proxy.cpp
@@ -19,6 +19,7 @@
 
 #include "addr_util.h"
 #include "str_util.h"
+#include "json_util.h"
 #include "nfs_proxy.h"
 #include "nfs_kv.h"
 #include "nfs_block.h"
diff --git a/src/test/mock/messenger.cpp b/src/test/mock/messenger.cpp
index 32150cef..2d5004b5 100644
--- a/src/test/mock/messenger.cpp
+++ b/src/test/mock/messenger.cpp
@@ -55,10 +55,3 @@ json11::Json::object osd_messenger_t::merge_configs(const json11::Json::object &
 {
     return cli_config;
 }
-
-bool json_is_true(const json11::Json & val)
-{
-    if (val.is_string())
-        return val == "true" || val == "yes" || val == "1";
-    return val.bool_value();
-}
diff --git a/src/util/json_util.cpp b/src/util/json_util.cpp
index 2ba87bd6..f329a23e 100644
--- a/src/util/json_util.cpp
+++ b/src/util/json_util.cpp
@@ -15,3 +15,21 @@ std::map<std::string, std::string> json_to_string_map(const json11::Json::object
     }
     return bs;
 }
+
+bool json_is_true(const json11::Json & val)
+{
+    if (val.is_string())
+        return val == "true" || val == "yes" || val == "1";
+    return val.bool_value();
+}
+
+bool json_is_false(const json11::Json & val)
+{
+    if (val.is_string())
+        return val.string_value() == "false" || val.string_value() == "no" || val.string_value() == "0";
+    if (val.is_number())
+        return val.number_value() == 0;
+    if (val.is_bool())
+        return !val.bool_value();
+    return false;
+}
diff --git a/src/util/json_util.h b/src/util/json_util.h
index 0fbe25b3..cd958d95 100644
--- a/src/util/json_util.h
+++ b/src/util/json_util.h
@@ -9,3 +9,5 @@
 #include "json11/json11.hpp"
 
 std::map<std::string, std::string> json_to_string_map(const json11::Json::object & config);
+bool json_is_true(const json11::Json & val);
+bool json_is_false(const json11::Json & val);