diff --git a/components/buildintf/ideoptionsintf.pas b/components/buildintf/ideoptionsintf.pas
index 8243615ae1..86aed7f5fb 100644
--- a/components/buildintf/ideoptionsintf.pas
+++ b/components/buildintf/ideoptionsintf.pas
@@ -219,7 +219,8 @@ const
     ProjectOptionsI18N        = 600;
     ProjectOptionsMisc        = 700;
     ProjectOptionsDebug       = 800;
-    DbgOptionsLanguageExceptions = 900;
+    DbgOptionsLanguageExceptions        =  900;
+    ProjectOptionsDbgValueConvert       = 1000;
 
   GroupPackage      = 200100;
     PackageOptionsUsage        = 100;
diff --git a/components/debuggerintf/dbgintfdebuggerbase.pp b/components/debuggerintf/dbgintfdebuggerbase.pp
index b2f5ad4762..e68cba7b59 100644
--- a/components/debuggerintf/dbgintfdebuggerbase.pp
+++ b/components/debuggerintf/dbgintfdebuggerbase.pp
@@ -1859,6 +1859,8 @@ type
   public
     constructor Create(AOwner: TComponent); override;
     destructor Destroy; override;
+
+    procedure DoBackendConverterChanged; virtual; abstract;
   end;
 
 procedure RegisterDebugger(const ADebuggerClass: TDebuggerClass);
diff --git a/ide/debugmanager.pas b/ide/debugmanager.pas
index a6a4b70dee..0bbb49d946 100644
--- a/ide/debugmanager.pas
+++ b/ide/debugmanager.pas
@@ -59,9 +59,9 @@ uses
   EvaluateDlg, RegistersDlg, AssemblerDlg, DebugOutputForm, ExceptionDlg,
   InspectDlg, DebugEventsForm, PseudoTerminalDlg, FeedbackDlg, ThreadDlg,
   HistoryDlg, ProcessDebugger, IdeDebuggerBase, IdeDebuggerOpts,
-  DbgIntfBaseTypes, DbgIntfDebuggerBase, DbgIntfMiscClasses,
-  DbgIntfPseudoTerminal, LazDebuggerIntf, LazDebuggerIntfBaseTypes,
-  BaseDebugManager;
+  IdeDebuggerBackendValueConv, DbgIntfBaseTypes, DbgIntfDebuggerBase,
+  DbgIntfMiscClasses, DbgIntfPseudoTerminal, LazDebuggerIntf,
+  LazDebuggerIntfBaseTypes, BaseDebugManager;
 
 
 type
@@ -216,6 +216,7 @@ type
     procedure DoRestoreDebuggerMarks(AnUnitInfo: TUnitInfo); override;
     procedure ClearDebugOutputLog;
     procedure ClearDebugEventsLog;
+    procedure DoBackendConverterChanged; override;
 
     function RequiredCompilerOpts(ATargetCPU, ATargetOS: String
       ): TDebugCompilerRequirements; override;
@@ -2371,6 +2372,22 @@ begin
   FEventLogManager.ClearDebugEventsLog;
 end;
 
+procedure TDebugManager.DoBackendConverterChanged;
+begin
+  ValueConverterSelectorList.Lock;
+
+  try
+    ValueConverterSelectorList.Clear;
+    if (Project1 <> nil) and (Project1.UseBackendConverterFromProject) then
+      Project1.BackendConverterConfig.AssignEnabledTo(ValueConverterSelectorList, True);
+    if (Project1 = nil) or (Project1.UseBackendConverterFromIDE) then
+      DebuggerOptions.BackendConverterConfig.AssignEnabledTo(ValueConverterSelectorList, True);
+
+  finally
+    ValueConverterSelectorList.Unlock;
+  end;
+end;
+
 function TDebugManager.RequiredCompilerOpts(ATargetCPU, ATargetOS: String
   ): TDebugCompilerRequirements;
 begin
diff --git a/ide/lazarusidestrconsts.pas b/ide/lazarusidestrconsts.pas
index a9d3a4a5ae..4792f60acf 100644
--- a/ide/lazarusidestrconsts.pas
+++ b/ide/lazarusidestrconsts.pas
@@ -6657,6 +6657,11 @@ resourcestring
   drsTheDebuggerBackendSelecti = 'The "Debugger Backend" selection from the '
     +'dropdown (list of IDE debugger backends) is always stored in the session'
     +'. The project specific backends (below) are by default stored in the LPI.';
+  drsStoreConverterConfigInSes = 'Store converter config in session';
+  drsThisOnlyAffectsTheListOfC = 'This only affects the list of converters '
+    +'below. The options which list to use are always stored in the session';
+  drsUseTheIDEGlobalListOfConv = 'Use the IDE-Global list of converters';
+  drsUseTheProjectListOfConver = 'Use the project list of converters';
 
 implementation
 
diff --git a/ide/main.pp b/ide/main.pp
index 11b449a9ab..b056520c03 100644
--- a/ide/main.pp
+++ b/ide/main.pp
@@ -134,6 +134,7 @@ uses
   project_application_options, project_forms_options, project_lazdoc_options,
   project_save_options, project_versioninfo_options, project_i18n_options,
   project_misc_options, project_resources_options, project_debug_options,
+  project_valconv_options,
   // project compiler option frames
   compiler_path_options, compiler_config_target, compiler_parsing_options,
   compiler_codegen_options, compiler_debugging_options, compiler_verbosity_options,
@@ -1390,12 +1391,8 @@ begin
   DebuggerOptions.PrimaryConfigPath := GetPrimaryConfigPath;
   DebuggerOptions.CreateConfig;
   DebuggerOptions.Load;
-  ValueConverterSelectorList.Lock;
-  try
-    DebuggerOptions.BackendConverterConfig.AssignEnabledTo(ValueConverterSelectorList);
-  finally
-    ValueConverterSelectorList.Unlock;
-  end;
+  if DebugBoss <> nil then
+    DebugBoss.DoBackendConverterChanged;
 
   Assert(InputHistories = nil, 'TMainIDE.LoadGlobalOptions: InputHistories is already assigned.');
   InputHistoriesSO := TInputHistoriesWithSearchOpt.Create;
diff --git a/ide/packages/idedebugger/frames/idedebugger_valconv_options.pas b/ide/packages/idedebugger/frames/idedebugger_valconv_options.pas
index f32e962ab2..49706a96a0 100644
--- a/ide/packages/idedebugger/frames/idedebugger_valconv_options.pas
+++ b/ide/packages/idedebugger/frames/idedebugger_valconv_options.pas
@@ -6,7 +6,7 @@ interface
 
 uses
   SysUtils, Forms, Controls, IDEOptEditorIntf, IDEOptionsIntf,
-  IdeDebuggerStringConstants,
+  DbgIntfDebuggerBase, IdeDebuggerStringConstants,
   IdeDbgValueConverterSettingsFrame, IdeDebuggerOpts,
   IdeDebuggerBackendValueConv;
 
@@ -25,7 +25,6 @@ type
     procedure ReadSettings({%H-}AOptions: TAbstractIDEOptions); override;
     procedure WriteSettings({%H-}AOptions: TAbstractIDEOptions); override;
     class function SupportedOptionsClass: TAbstractIDEOptionsClass; override;
-
   end;
 
   procedure Register;
@@ -76,12 +75,8 @@ begin
     DebuggerOptions.BackendConverterConfig.Assign(FValConvList);
     DebuggerOptions.BackendConverterConfig.Changed := True;
 
-    ValueConverterSelectorList.Lock;
-    try
-      DebuggerOptions.BackendConverterConfig.AssignEnabledTo(ValueConverterSelectorList);
-    finally
-      ValueConverterSelectorList.Unlock;
-    end;
+    if DebugBossManager <> nil then
+      DebugBossManager.DoBackendConverterChanged;
   end;
 end;
 
diff --git a/ide/packages/idedebugger/idedbgvalueconvertersettingsframe.pas b/ide/packages/idedebugger/idedbgvalueconvertersettingsframe.pas
index 17c8b25963..32d47fb496 100644
--- a/ide/packages/idedebugger/idedbgvalueconvertersettingsframe.pas
+++ b/ide/packages/idedebugger/idedbgvalueconvertersettingsframe.pas
@@ -121,22 +121,22 @@ begin
   pnlCurrentConv.Enabled := lstConverters.Count > 0;
 
   FCurIdx := lstConverters.ItemIndex;
-  if FCurIdx >= FValConvList.Count then begin
+  if (FCurIdx >= FValConvList.Count) or (FCurIdx < 0) then begin
     FCurIdx := -1;
     FCurConvConf := nil;
     lblDesc.Caption := '';
     EdName.Text := '';
     memoTypeNames.Text := '';
   end
-  else
+  else begin
     SetCurConv(FValConvList[FCurIdx]);
+    lblDesc.Caption := FCurConvConf.Converter.GetRegistryEntry.GetName;
+    EdName.Text := FCurConvConf.Name;
+    memoTypeNames.Text := FCurConvConf.MatchTypeNames.Text;
 
-  lblDesc.Caption := FCurConvConf.Converter.GetRegistryEntry.GetName;
-  EdName.Text := FCurConvConf.Name;
-  memoTypeNames.Text := FCurConvConf.MatchTypeNames.Text;
-
-  AvailClass := ValueConverterRegistry;
-  dropAction.ItemIndex := AvailClass.IndexOfConvertorClass(FCurConvConf.Converter.GetObject.ClassType);
+    AvailClass := ValueConverterRegistry;
+    dropAction.ItemIndex := AvailClass.IndexOfConvertorClass(FCurConvConf.Converter.GetObject.ClassType);
+  end;
 
   lstConvertersItemClick(nil, FCurIdx);
 end;
@@ -270,7 +270,7 @@ begin
   lblAction.Caption    := dlgBackConvOptAction;
 
   FCurConvConf := nil;
-  lblDesc.Caption := '-';
+  lblDesc.Caption := '';
 
   dropAction.Clear;
   AvailClass := ValueConverterRegistry;
diff --git a/ide/packages/idedebugger/idedebugger.lpk b/ide/packages/idedebugger/idedebugger.lpk
index 98d7a64b1e..0a99fdfb1d 100644
--- a/ide/packages/idedebugger/idedebugger.lpk
+++ b/ide/packages/idedebugger/idedebugger.lpk
@@ -71,8 +71,8 @@
         <UnitName Value="IdeDebuggerStringConstants"/>
       </Item>
       <Item>
-        <Filename Value="idedebuggerfpdbgvalueconv.pas"/>
-        <UnitName Value="IdeDebuggerFpDbgValueConv"/>
+        <Filename Value="idedebuggerbackendvalueconv.pas"/>
+        <UnitName Value="IdeDebuggerBackendValueConv"/>
       </Item>
       <Item>
         <Filename Value="idedbgvalueconvertersettingsframe.pas"/>
diff --git a/ide/packages/idedebugger/idedebuggerbackendvalueconv.pas b/ide/packages/idedebugger/idedebuggerbackendvalueconv.pas
index d934262932..4a6e086fb4 100644
--- a/ide/packages/idedebugger/idedebuggerbackendvalueconv.pas
+++ b/ide/packages/idedebugger/idedebuggerbackendvalueconv.pas
@@ -49,10 +49,12 @@ type
   private
     FLock: TLazMonitor;
     FChanged: Boolean;
+    FOnChanged: TNotifyEvent;
     function Count: Integer;
     function Get(Index: Integer): TLazDbgValueConvertSelectorIntf;
     function GetIdeItems(Index: Integer): TIdeDbgValueConvertSelector;
     procedure PutIdeItems(Index: Integer; AValue: TIdeDbgValueConvertSelector);
+    procedure SetChanged(AValue: Boolean);
   public
     constructor Create;
     destructor Destroy; override;
@@ -61,7 +63,7 @@ type
     procedure Lock;
     procedure Unlock;
 
-    procedure AssignEnabledTo(ADest: TIdeDbgValueConvertSelectorList);
+    procedure AssignEnabledTo(ADest: TIdeDbgValueConvertSelectorList; AnAppend: Boolean = False);
 
     procedure LoadDataFromXMLConfig(const AConfig: TRttiXMLConfig; const APath: string);
     procedure SaveDataToXMLConfig(const AConfig: TRttiXMLConfig; const APath: string);
@@ -69,7 +71,8 @@ type
     function IdeItemByName(AName: String): TIdeDbgValueConvertSelector;
 
     property IdeItems[Index: Integer]: TIdeDbgValueConvertSelector read GetIdeItems write PutIdeItems; default;
-    property Changed: Boolean read FChanged write FChanged;
+    property Changed: Boolean read FChanged write SetChanged;
+    property OnChanged: TNotifyEvent read FOnChanged write FOnChanged;
   end;
 
 var
@@ -183,6 +186,14 @@ begin
   Items[Index] := AValue;
 end;
 
+procedure TIdeDbgValueConvertSelectorList.SetChanged(AValue: Boolean);
+begin
+  if FChanged = AValue then Exit;
+  FChanged := AValue;
+  if FChanged and (FOnChanged <> nil) then
+    FOnChanged(Self);
+end;
+
 constructor TIdeDbgValueConvertSelectorList.Create;
 begin
   inherited Create(True);
@@ -217,11 +228,13 @@ begin
 end;
 
 procedure TIdeDbgValueConvertSelectorList.AssignEnabledTo(
-  ADest: TIdeDbgValueConvertSelectorList);
+  ADest: TIdeDbgValueConvertSelectorList; AnAppend: Boolean);
 var
   i: Integer;
 begin
-  ADest.Clear;
+  if not AnAppend then
+    ADest.Clear;
+
   for i := 0 to Count - 1 do
     if IdeItems[i].Enabled then
       ADest.Add(Items[i].CreateCopy);
diff --git a/ide/project.pp b/ide/project.pp
index 414c3b7939..bcfd024f40 100644
--- a/ide/project.pp
+++ b/ide/project.pp
@@ -61,7 +61,7 @@ uses
   CompOptsIntf, ProjectIntf, MacroIntf, MacroDefIntf, SrcEditorIntf,
   IDEOptionsIntf, IDEOptEditorIntf, IDEDialogs, LazIDEIntf, PackageIntf,
   // DebuggerIntf
-  DbgIntfDebuggerBase, IdeDebuggerOpts,
+  DbgIntfDebuggerBase, IdeDebuggerOpts, IdeDebuggerBackendValueConv,
   // IDE
   EnvironmentOpts,
   CompOptsModes, ProjectResources, LazConf, ProjectIcon,
@@ -730,6 +730,9 @@ type
     FLastCompileComplete: boolean;
     FMacroEngine: TTransferMacroList;
     FOnLoadSafeCustomData: TLazLoadSaveCustomDataEvent;
+    FStoreBackendConverterConfigInSession: boolean;
+    FBackendConverterConfigWasFromSession, FBackendConverterConfigWasFromLPI: boolean;
+    FBackendConverterConfig: TIdeDbgValueConvertSelectorList;
     FStoreDebuggerClassConfInSession: boolean;
     FDebuggerClassConfWasFromSession, FDebuggerClassConfWasFromLPI: boolean;
     FTmpAutoCreatedForms: TStrings; // temporary, used to apply auto create forms changes
@@ -783,6 +786,8 @@ type
     FOtherDefines: TStrings; // list of user selectable defines for custom options
     FUpdateLock: integer;
     FUseAsDefault: Boolean;
+    FUseBackendConverterFromIDE: boolean;
+    FUseBackendConverterFromProject: boolean;
     // Variables used by ReadProject / WriteProject
     FXMLConfig: TRttiXMLConfig;
     FLoadAllOptions: Boolean; // All options / just options used as default for new projects
@@ -814,7 +819,11 @@ type
     procedure EmbeddedObjectModified(Sender: TObject);
     function FileBackupHandler(const Filename: string): TModalResult;
     procedure LoadSaveFilenameHandler(var AFilename: string; Load: boolean);
+    procedure OnBackendConverterConfigChanged(Sender: TObject);
+    procedure SetStoreBackendConverterConfigInSession(AValue: boolean);
     procedure SetStoreDebuggerClassConfInSession(AValue: boolean);
+    procedure SetUseBackendConverterFromIDE(AValue: boolean);
+    procedure SetUseBackendConverterFromProject(AValue: boolean);
     procedure UnitNameChangeHandler(AnUnitInfo: TUnitInfo;
                                const OldUnitName, NewUnitName: string;
                                CheckIfAllowed: boolean; var Allowed: boolean);
@@ -1154,6 +1163,10 @@ type
     procedure MarkDebuggerClassConfAsModified;
     property StoreDebuggerClassConfInSession: boolean read FStoreDebuggerClassConfInSession write SetStoreDebuggerClassConfInSession;
 
+    property BackendConverterConfig: TIdeDbgValueConvertSelectorList read FBackendConverterConfig write FBackendConverterConfig;
+    property StoreBackendConverterConfigInSession: boolean read FStoreBackendConverterConfigInSession write SetStoreBackendConverterConfigInSession;
+    property UseBackendConverterFromIDE: boolean read FUseBackendConverterFromIDE write SetUseBackendConverterFromIDE;
+    property UseBackendConverterFromProject: boolean read FUseBackendConverterFromProject write SetUseBackendConverterFromProject;
   end;
 
 
@@ -2820,6 +2833,13 @@ begin
   FHistoryLists := THistoryLists.Create;
 
   FDebuggerProperties := TDebuggerPropertiesConfigList.Create;
+  FBackendConverterConfig := TIdeDbgValueConvertSelectorList.Create;
+  FBackendConverterConfig.OnChanged := @OnBackendConverterConfigChanged;
+  FUseBackendConverterFromIDE := True;
+  FUseBackendConverterFromProject := True;
+
+  if DebugBossManager <> nil then
+    DebugBossManager.DoBackendConverterChanged;
 end;
 
 {------------------------------------------------------------------------------
@@ -2851,6 +2871,7 @@ begin
   FreeThenNil(FHistoryLists);
   FDebuggerProperties.ClearAll;
   FreeAndNil(FDebuggerProperties);
+  FreeAndNil(FBackendConverterConfig);
 
   inherited Destroy;
 end;
@@ -3069,6 +3090,12 @@ begin
     FDebuggerClassConfWasFromLPI := True;
   end;
 
+  FStoreBackendConverterConfigInSession := FXMLConfig.GetValue(Path+'Debugger/StoreBackendConverterConfigInSession/Value', False);
+  if not FStoreBackendConverterConfigInSession then begin
+    FBackendConverterConfig.LoadDataFromXMLConfig(FXMLConfig, Path+'Debugger/BackendConv/');
+    FBackendConverterConfigWasFromLPI := True;
+  end;
+
   // This is for backward compatibility (only trunk 2.1 did use this / Can be removed in some time after 2.2 / but needs LoadFromSession to change default to '')
   FDebuggerBackend := FXMLConfig.GetValue(Path+'Debugger/Backend/Value', '');
 
@@ -3111,6 +3138,13 @@ begin
     FDebuggerClassConfWasFromSession := True;
   end;
 
+  FUseBackendConverterFromIDE :=     FXMLConfig.GetValue(Path+'Debugger/BackendConvOpts/UseBackendConverterFromIDE', True);
+  FUseBackendConverterFromProject := FXMLConfig.GetValue(Path+'Debugger/BackendConvOpts/UseBackendConverterFromProject', True);
+
+  if FStoreBackendConverterConfigInSession then begin
+    FBackendConverterConfig.LoadDataFromXMLConfig(FXMLConfig, Path+'Debugger/BackendConv/');
+    FBackendConverterConfigWasFromSession := True;
+  end;
 
   // call hooks to read their info (e.g. DebugBoss)
   if Assigned(OnLoadProjectInfo) then
@@ -3281,6 +3315,10 @@ begin
     FAllEditorsInfoList.SortByPageIndex;
   end;
   {$IFDEF IDE_MEM_CHECK}CheckHeapWrtMemCnt('TProject.ReadProject END');{$ENDIF}
+
+  if DebugBossManager <> nil then
+    DebugBossManager.DoBackendConverterChanged;
+
   Result := mrOk;
 end;
 
@@ -3428,8 +3466,8 @@ begin
   SaveUnits(Path,FSaveSessionInLPI);
 
   FXMLConfig.DeletePath(Path+'Debugger/Backend'); // remove old value from trunk 2.1
-  FXMLConfig.SetDeleteValue(Path+'Debugger/StoreDebuggerClassConfInSession/Value', FStoreDebuggerClassConfInSession, False);
 
+  FXMLConfig.SetDeleteValue(Path+'Debugger/StoreDebuggerClassConfInSession/Value', FStoreDebuggerClassConfInSession, False);
   if not FStoreDebuggerClassConfInSession then
     FDebuggerProperties.SaveToXml(FXMLConfig, Path+'Debugger/ClassConfig/')
   else
@@ -3438,6 +3476,14 @@ begin
   FDebuggerClassConfWasFromSession := False;
   FDebuggerClassConfWasFromLPI := False;
 
+  FXMLConfig.SetDeleteValue(Path+'Debugger/StoreBackendConverterConfigInSession/Value', FStoreBackendConverterConfigInSession, False);
+  if not FStoreBackendConverterConfigInSession then
+    FBackendConverterConfig.SaveDataToXMLConfig(FXMLConfig, Path+'Debugger/BackendConv/')
+  else
+  if FBackendConverterConfigWasFromLPI then
+    FXMLConfig.DeletePath(Path+'Debugger/BackendConv');
+  FBackendConverterConfigWasFromSession := False;
+  FBackendConverterConfigWasFromLPI := False;
 
   if FSaveSessionInLPI then begin
     // save defines used for custom options
@@ -3494,6 +3540,7 @@ begin
   SaveUnits(Path,true);
 
   FXMLConfig.SetDeleteValue(Path+'Debugger/Backend/Value', DebuggerBackend, '');
+
   if FStoreDebuggerClassConfInSession then
     FDebuggerProperties.SaveToXml(FXMLConfig, Path+'Debugger/ClassConfig/')
   else
@@ -3502,6 +3549,17 @@ begin
   FDebuggerClassConfWasFromSession := False;
   FDebuggerClassConfWasFromLPI := False;
 
+  FXMLConfig.SetDeleteValue(Path+'Debugger/BackendConvOpts/UseBackendConverterFromIDE', FUseBackendConverterFromIDE, True);
+  FXMLConfig.SetDeleteValue(Path+'Debugger/BackendConvOpts/UseBackendConverterFromProject', FUseBackendConverterFromProject, True);
+
+  if FStoreBackendConverterConfigInSession then
+    FBackendConverterConfig.SaveDataToXMLConfig(FXMLConfig, Path+'Debugger/BackendConv/')
+  else
+  if FBackendConverterConfigWasFromSession then
+    FXMLConfig.DeletePath(Path+'Debugger/BackendConv');
+  FBackendConverterConfigWasFromSession := False;
+  FBackendConverterConfigWasFromLPI := False;
+
   // save defines used for custom options
   SaveOtherDefines(Path);
   // save session info
@@ -3932,6 +3990,8 @@ begin
   UpdateProjectDirectory;
   FPublishOptions.Clear;
   Title := '';
+  FUseBackendConverterFromIDE := True;
+  FUseBackendConverterFromProject := True;
 
   Modified := false;
   SessionModified := false;
@@ -4617,6 +4677,22 @@ begin
   //debugln('TProject.OnLoadSaveFilename END "',AFilename,'" FileWasAbsolute=',dbgs(FileWasAbsolute));
 end;
 
+procedure TProject.OnBackendConverterConfigChanged(Sender: TObject);
+begin
+  if FStoreBackendConverterConfigInSession then
+    SessionModified := True
+  else
+    Modified := True;
+end;
+
+procedure TProject.SetStoreBackendConverterConfigInSession(AValue: boolean);
+begin
+  if FStoreBackendConverterConfigInSession = AValue then Exit;
+  FStoreBackendConverterConfigInSession := AValue;
+  Modified := True;
+  SessionModified := True;
+end;
+
 procedure TProject.SetStoreDebuggerClassConfInSession(AValue: boolean);
 begin
   if FStoreDebuggerClassConfInSession = AValue then Exit;
@@ -4625,6 +4701,20 @@ begin
   SessionModified := True;
 end;
 
+procedure TProject.SetUseBackendConverterFromIDE(AValue: boolean);
+begin
+  if FUseBackendConverterFromIDE = AValue then Exit;
+  FUseBackendConverterFromIDE := AValue;
+  SessionModified := True;
+end;
+
+procedure TProject.SetUseBackendConverterFromProject(AValue: boolean);
+begin
+  if FUseBackendConverterFromProject = AValue then Exit;
+  FUseBackendConverterFromProject := AValue;
+  SessionModified := True;
+end;
+
 function TProject.RemoveProjectPathFromFilename(const AFilename: string): string;
 var
   ProjectPath:string;