diff --git a/code/nel/tools/3d/tga_2_dds/tga2dds.cpp b/code/nel/tools/3d/tga_2_dds/tga2dds.cpp
index 6becf5e7b..292280349 100644
--- a/code/nel/tools/3d/tga_2_dds/tga2dds.cpp
+++ b/code/nel/tools/3d/tga_2_dds/tga2dds.cpp
@@ -61,6 +61,10 @@ uint8 getType(const std::string &sFileNameDest)
 		return NOT_DEFINED;
 	}
 
+#ifdef NL_BIG_ENDIAN
+	NLMISC_BSWAP32(dds);
+#endif
+
 	if (fread(&h,sizeof(CS3TCCompressor::DDS_HEADER),1,f) != 1)
 	{
 		fclose(f);
diff --git a/code/nel/tools/memory/memlog/memlog.cpp b/code/nel/tools/memory/memlog/memlog.cpp
index 2f9892727..8112f6181 100644
--- a/code/nel/tools/memory/memlog/memlog.cpp
+++ b/code/nel/tools/memory/memlog/memlog.cpp
@@ -69,11 +69,20 @@ int main(int argc, char* argv[])
 					if (fread (&size, sizeof(uint32), 1, file) != 1)
 						break;
 
+#ifdef NL_BIG_ENDIAN
+					NLMISC_BSWAP32(size);
+#endif
+
 					while (1)
 					{
 						uint32 start;
 						if (fread (&start, sizeof(uint32), 1, file) != 1)
 							break;
+
+#ifdef NL_BIG_ENDIAN
+						NLMISC_BSWAP32(start);
+#endif
+
 						string category;
 						if (!readString (category, file))
 							break;
diff --git a/code/nel/tools/misc/bnp_make/main.cpp b/code/nel/tools/misc/bnp_make/main.cpp
index 06025d80c..a3f34a6a4 100644
--- a/code/nel/tools/misc/bnp_make/main.cpp
+++ b/code/nel/tools/misc/bnp_make/main.cpp
@@ -94,7 +94,15 @@ struct BNPHeader
 		if (f == NULL) return false;
 
 		uint32 nNbFile = (uint32)Files.size();
-		if (fwrite (&nNbFile, sizeof(uint32), 1, f) != 1)
+
+		// value to be serialized
+		uint32 nNbFile2 = nNbFile;
+
+#ifdef NL_BIG_ENDIAN
+		NLMISC_BSWAP32(nNbFile2);
+#endif
+
+		if (fwrite (&nNbFile2, sizeof(uint32), 1, f) != 1)
 		{
 			fclose(f);
 			return false;
@@ -115,20 +123,38 @@ struct BNPHeader
 				return false;
 			}
 
-			if (fwrite (&Files[i].Size, sizeof(uint32), 1, f) != 1)
+			uint32 nFileSize = Files[i].Size;
+
+#ifdef NL_BIG_ENDIAN
+			NLMISC_BSWAP32(nFileSize);
+#endif
+
+			if (fwrite (&nFileSize, sizeof(uint32), 1, f) != 1)
 			{
 				fclose(f);
 				return false;
 			}
 
-			if (fwrite (&Files[i].Pos, sizeof(uint32), 1, f) != 1)
+			uint32 nFilePos = Files[i].Pos;
+
+#ifdef NL_BIG_ENDIAN
+			NLMISC_BSWAP32(nFilePos);
+#endif
+
+			if (fwrite (&nFilePos, sizeof(uint32), 1, f) != 1)
 			{
 				fclose(f);
 				return false;
 			}
 		}
 
-		if (fwrite (&OffsetFromBeginning, sizeof(uint32), 1, f) != 1)
+		uint32 nOffsetFromBeginning = OffsetFromBeginning;
+
+#ifdef NL_BIG_ENDIAN
+		NLMISC_BSWAP32(nOffsetFromBeginning);
+#endif
+
+		if (fwrite (&nOffsetFromBeginning, sizeof(uint32), 1, f) != 1)
 		{
 			fclose(f);
 			return false;