diff --git a/src/Distribution/Array.h b/src/Distribution/Array.h
index 4d56db1..17365a0 100644
--- a/src/Distribution/Array.h
+++ b/src/Distribution/Array.h
@@ -9,6 +9,7 @@
 #include "DvmhDirectiveBase.h"
 #include "../Utils/utils.h"
 #include "../Utils/errors.h"
+#include "../Utils/json.hpp"
 
 class Symbol;
 class Expression;
@@ -20,6 +21,7 @@ struct FuncInfo;
 #define MAP std::map
 #define SET std::set
 #define TO_STR std::to_string
+#define JSON nlohmann::json
 
 #if __SPF
 extern int sharedMemoryParallelization;
@@ -424,6 +426,7 @@ namespace Distribution
 
         void ClearShadowSpecs() { allShadowSpecs.clear(); }
 
+        //TODO: to remove
         STRING toString()
         {
             STRING retVal = "";
@@ -466,6 +469,63 @@ namespace Distribution
             return retVal;
         }
 
+        JSON toJson()
+        {
+            JSON retVal;
+
+            retVal["id"] = (int64_t)id;
+            retVal["name"] = name;
+            retVal["shortName"] = shortName;
+
+            retVal["dimSize"] = dimSize;
+            retVal["typeSize"] = typeSize;
+            retVal["state"] = (int)isNonDistribute;
+            retVal["location"] = (int)locationPos.first;
+            retVal["locName"] = locationPos.second;
+
+            retVal["isTemplFlag"] = (int)isTemplFlag;
+            retVal["isLoopArrayFlag"] = (int)isLoopArrayFlag;
+
+            JSON deprToDist = nlohmann::json::array();
+            for (int i = 0; i < depracateToDistribute.size(); ++i)
+                deprToDist.push_back((int)depracateToDistribute[i]);
+            retVal["depracateToDist"] = deprToDist;
+
+            JSON mappedDimsJ = nlohmann::json::array();
+            for (int i = 0; i < mappedDims.size(); ++i)
+                mappedDimsJ.push_back((int)mappedDims[i]);
+            retVal["mappedDims"] = mappedDimsJ;
+
+            JSON sizesJ = nlohmann::json::array();
+            for (int i = 0; i < sizes.size(); ++i)
+            {
+                JSON pair;
+                pair["key"] = sizes[i].first;
+                pair["value"] = sizes[i].second;
+                sizesJ.push_back(pair);
+            }
+            retVal["sizes"] = sizesJ;
+
+            JSON regions = nlohmann::json::array();
+            for (auto& reg : containsInRegions)
+                regions.push_back(reg);
+            retVal["regions"] = regions;
+
+
+            JSON declPlacesJ = nlohmann::json::array();
+            for (auto& place : declPlaces)
+            {
+                JSON elem;
+                elem["array_name"] = place.first;
+                elem["array_loc"] = place.second;
+
+                declPlacesJ.push_back(elem);
+            }
+            retVal["declPlaces"] = declPlacesJ;
+
+            return retVal;
+        }
+        
         Array* GetTemplateArray(const uint64_t regionId, bool withCheck = true)
         {
             TemplateLink *currLink = getTemlateInfo(regionId, withCheck);
diff --git a/src/Utils/version.h b/src/Utils/version.h
index 2633120..ed408b9 100644
--- a/src/Utils/version.h
+++ b/src/Utils/version.h
@@ -1,3 +1,3 @@
 #pragma once
 
-#define VERSION_SPF "2416"
+#define VERSION_SPF "2417"
diff --git a/src/VisualizerCalls/get_information.cpp b/src/VisualizerCalls/get_information.cpp
index 698d970..058108f 100644
--- a/src/VisualizerCalls/get_information.cpp
+++ b/src/VisualizerCalls/get_information.cpp
@@ -1416,14 +1416,17 @@ int SPF_GetAllDeclaratedArrays(void*& context, int winHandler, short *options, s
     {
         runPassesForVisualizer(projName, { GET_ALL_ARRAY_DECL });
 
-        string resVal = "";
-        for (auto f = declaredArrays.begin(); f != declaredArrays.end(); ++f)
+        json arrays = json::array();
+        for (const auto& [_, array] : declaredArrays)
         {
-            if (f != declaredArrays.begin())
-                resVal += "@";
-            resVal += f->second.first->toString();
+            json jArray = array.first->toJson();
+            arrays.push_back(jArray);
         }
 
+        json allArrays;
+        allArrays["allArrays"] = arrays;
+        string resVal = allArrays.dump();
+
         copyStringToShort(result, resVal);
         retSize = (int)resVal.size() + 1;
     }