diff --git a/userspace/libsinsp/utils.cpp b/userspace/libsinsp/utils.cpp
index c104575ae5..42a6da6d12 100644
--- a/userspace/libsinsp/utils.cpp
+++ b/userspace/libsinsp/utils.cpp
@@ -861,54 +861,6 @@ bool sinsp_utils::glob_match(const char *pattern, const char *string, const bool
 #endif
 }
 
-#ifndef _WIN32
-#ifdef __GLIBC__
-void sinsp_utils::bt(void)
-{
-	static const char start[] = "BACKTRACE ------------";
-	static const char end[] = "----------------------";
-
-	void *bt[1024];
-	int bt_size;
-	char **bt_syms;
-	int i;
-
-	bt_size = backtrace(bt, 1024);
-	bt_syms = backtrace_symbols(bt, bt_size);
-	libsinsp_logger()->format("%s", start);
-	for (i = 1; i < bt_size; i++)
-	{
-		libsinsp_logger()->format("%s", bt_syms[i]);
-	}
-	libsinsp_logger()->format("%s", end);
-
-	free(bt_syms);
-}
-#endif // __GLIBC__
-#endif // _WIN32
-
-bool sinsp_utils::find_first_env(std::string &out, const std::vector<std::string> &env, const std::vector<std::string> &keys)
-{
-	for (const auto& key : keys)
-	{
-		for(const auto& env_var : env)
-		{
-			if((env_var.size() > key.size()) && !env_var.compare(0, key.size(), key) && (env_var[key.size()] == '='))
-			{
-				out = env_var.substr(key.size()+1);
-				return true;
-			}
-		}
-	}
-	return false;
-}
-
-bool sinsp_utils::find_env(std::string &out, const std::vector<std::string> &env, const std::string &key)
-{
-	const std::vector<std::string> keys = { key };
-	return find_first_env(out, env, keys);
-}
-
 void sinsp_utils::split_container_image(const std::string &image,
 					std::string &hostname,
 					std::string &port,
@@ -973,30 +925,6 @@ void sinsp_utils::split_container_image(const std::string &image,
 	}
 }
 
-void sinsp_utils::parse_suppressed_types(const std::vector<std::string>& supp_strs,
-					 std::vector<ppm_event_code>* supp_ids)
-{
-	for (auto ii = 0; ii < PPM_EVENT_MAX; ii++)
-	{
-		auto iter = std::find(supp_strs.begin(), supp_strs.end(),
-				      event_name_by_id(ii));
-		if (iter != supp_strs.end())
-		{
-			supp_ids->push_back(static_cast<ppm_event_code>(ii));
-		}
-	}
-}
-
-const char* sinsp_utils::event_name_by_id(uint16_t id)
-{
-	if (id >= PPM_EVENT_MAX)
-	{
-		ASSERT(false);
-		return "NA";
-	}
-	return g_infotables.m_event_info[id].name;
-}
-
 static int32_t gmt2local(time_t t)
 {
 	int dt, dir;
@@ -1107,34 +1035,6 @@ void sinsp_utils::ts_to_iso_8601(uint64_t ts, OUT std::string* res)
 // Time utility functions.
 ///////////////////////////////////////////////////////////////////////////////
 
-bool sinsp_utils::parse_iso_8601_utc_string(const std::string& time_str, uint64_t &ns)
-{
-#ifndef _WIN32
-	tm tm_time{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
-	char* rem = strptime(time_str.c_str(), "%Y-%m-%dT%H:%M:", &tm_time);
-	if(rem == NULL || *rem == '\0')
-	{
-		return false;
-	}
-	tm_time.tm_isdst = -1; // strptime does not set this, signal timegm to determine DST
-	ns = timegm(&tm_time) * ONE_SECOND_IN_NS;
-
-	// Handle the possibly fractional seconds now. Also verify
-	// that the string ends with Z.
-	double fractional_secs;
-	if(sscanf(rem, "%lfZ", &fractional_secs) != 1)
-	{
-		return false;
-	}
-
-	ns += (fractional_secs * ONE_SECOND_IN_NS);
-
-	return true;
-#else
-	throw sinsp_exception("parse_iso_8601_utc_string() not implemented on Windows");
-#endif
-}
-
 time_t get_epoch_utc_seconds(const std::string& time_str, const std::string& fmt)
 {
 #ifndef _WIN32
diff --git a/userspace/libsinsp/utils.h b/userspace/libsinsp/utils.h
index 3ef31f824e..68e087f34b 100644
--- a/userspace/libsinsp/utils.h
+++ b/userspace/libsinsp/utils.h
@@ -122,9 +122,6 @@ class sinsp_utils
 	static void bt(void);
 #endif // _WIN32
 
-	static bool find_first_env(std::string &out, const std::vector<std::string> &env, const std::vector<std::string> &keys);
-	static bool find_env(std::string &out, const std::vector<std::string> &env, const std::string &key);
-
 	static void split_container_image(const std::string &image,
 					  std::string &hostname,
 					  std::string &port,
@@ -133,20 +130,10 @@ class sinsp_utils
 					  std::string &digest,
 					  bool split_repo = true);
 
-	static void parse_suppressed_types(const std::vector<std::string>& supp_strs,
-					   std::vector<ppm_event_code>* supp_ids);
-
-	static const char* event_name_by_id(uint16_t id);
-
 	static void ts_to_string(uint64_t ts, OUT std::string* res, bool date, bool ns);
 
 	static void ts_to_iso_8601(uint64_t ts, OUT std::string* res);
 
-        // Limited version of iso 8601 time string parsing, that assumes a
-        // timezone of Z for UTC, but does support parsing fractional seconds,
-        // unlike get_epoch_utc_seconds_* below.
-	static bool parse_iso_8601_utc_string(const std::string& time_str, uint64_t &ns);
-
 	//
 	// Convert caps from their numeric representation to a space-separated string list
 	//