diff --git a/src/Loggers.cc b/src/Loggers.cc
new file mode 100644
index 00000000..42aa65e9
--- /dev/null
+++ b/src/Loggers.cc
@@ -0,0 +1,57 @@
+#include "Loggers.hh"
+
+#include <phosg/Strings.hh>
+
+using namespace std;
+
+
+
+PrefixedLogger ax_messages_log       ("[$ax message] "     , LogLevel::USE_DEFAULT);
+PrefixedLogger channel_exceptions_log("[Channel] "         , LogLevel::USE_DEFAULT);
+PrefixedLogger client_log            (""                   , LogLevel::USE_DEFAULT);
+PrefixedLogger command_data_log      (""                   , LogLevel::USE_DEFAULT);
+PrefixedLogger config_log            ("[Config] "          , LogLevel::USE_DEFAULT);
+PrefixedLogger dns_server_log        ("[DNSServer] "       , LogLevel::USE_DEFAULT);
+PrefixedLogger function_compiler_log ("[FunctionCompiler] ", LogLevel::USE_DEFAULT);
+PrefixedLogger ip_stack_simulator_log("[IPStackSimulator] ", LogLevel::USE_DEFAULT);
+PrefixedLogger license_log           ("[LicenseManager] "  , LogLevel::USE_DEFAULT);
+PrefixedLogger lobby_log             (""                   , LogLevel::USE_DEFAULT);
+PrefixedLogger player_data_log       (""                   , LogLevel::USE_DEFAULT);
+PrefixedLogger proxy_server_log      ("[ProxyServer] "     , LogLevel::USE_DEFAULT);
+PrefixedLogger server_log            ("[Server] "          , LogLevel::USE_DEFAULT);
+PrefixedLogger static_game_data_log  ("[StaticGameData] "  , LogLevel::USE_DEFAULT);
+
+static LogLevel log_level_for_name(const string& name) {
+  static const unordered_map<string, LogLevel> levels({
+    {"debug", LogLevel::DEBUG},
+    {"info", LogLevel::INFO},
+    {"warning", LogLevel::WARNING},
+    {"error", LogLevel::ERROR},
+    {"disabled", LogLevel::DISABLED},
+  });
+  return levels.at(tolower(name));
+}
+
+static void set_log_level_from_json(
+    PrefixedLogger& log, shared_ptr<JSONObject> d, const char* json_key) {
+  try {
+    log.min_level = log_level_for_name(d->at(json_key)->as_string());
+  } catch (const JSONObject::key_error&) { }
+}
+
+void set_log_levels_from_json(shared_ptr<JSONObject> json) {
+  set_log_level_from_json(ax_messages_log       , json, "AXMessages");
+  set_log_level_from_json(channel_exceptions_log, json, "ChannelExceptions");
+  set_log_level_from_json(client_log            , json, "Clients");
+  set_log_level_from_json(command_data_log      , json, "CommandData");
+  set_log_level_from_json(config_log            , json, "Config");
+  set_log_level_from_json(dns_server_log        , json, "DNSServer");
+  set_log_level_from_json(function_compiler_log , json, "FunctionCompiler");
+  set_log_level_from_json(ip_stack_simulator_log, json, "IPStackSimulator");
+  set_log_level_from_json(license_log           , json, "LicenseManager");
+  set_log_level_from_json(lobby_log             , json, "Lobbies");
+  set_log_level_from_json(player_data_log       , json, "PlayerData");
+  set_log_level_from_json(proxy_server_log      , json, "ProxyServer");
+  set_log_level_from_json(server_log            , json, "GameServer");
+  set_log_level_from_json(static_game_data_log  , json, "StaticGameData");
+}
diff --git a/src/Loggers.hh b/src/Loggers.hh
new file mode 100644
index 00000000..dacb3570
--- /dev/null
+++ b/src/Loggers.hh
@@ -0,0 +1,23 @@
+#pragma once
+
+#include <phosg/Strings.hh>
+#include <phosg/JSON.hh>
+
+
+
+extern PrefixedLogger ax_messages_log;
+extern PrefixedLogger channel_exceptions_log;
+extern PrefixedLogger client_log;
+extern PrefixedLogger command_data_log;
+extern PrefixedLogger config_log;
+extern PrefixedLogger dns_server_log;
+extern PrefixedLogger function_compiler_log;
+extern PrefixedLogger ip_stack_simulator_log;
+extern PrefixedLogger license_log;
+extern PrefixedLogger lobby_log;
+extern PrefixedLogger player_data_log;
+extern PrefixedLogger proxy_server_log;
+extern PrefixedLogger server_log;
+extern PrefixedLogger static_game_data_log;
+
+void set_log_levels_from_json(std::shared_ptr<JSONObject> json);