diff --git a/release-packaging/Classes/FluidManipulationJSON.sc b/release-packaging/Classes/FluidManipulationJSON.sc
new file mode 100644
index 0000000..216e577
--- /dev/null
+++ b/release-packaging/Classes/FluidManipulationJSON.sc
@@ -0,0 +1,40 @@
++ FluidManipulationClient {
+	tmpJSONFilename{
+		^Platform.defaultTempDir++"tmp_fluid_dataset_"++
+		Date.localtime.stamp++".json";
+	}
+
+	dump {|action|
+		var filename = this.tmpJSONFilename;
+		action ?? {action = postit};
+		this.write(filename, {
+			action.value(filename.parseYAMLFile);
+			File.delete(filename);
+		});
+	}
+
+	load{|dict, action|
+		var filename = this.tmpJSONFilename;
+		var str = this.asJSON(dict);
+		File.use(filename, "w", { |f| f.write(this.asJSON(dict));});
+		this.read(filename, {
+			action.notNil.if{ action.value };
+			File.delete(filename);
+		});
+	}
+
+	asJSON{|d|
+		if(d.isString || d.isNumber){^d};
+		if(d.isKindOf(Dictionary),
+		{
+		  ^"{" ++ (
+			d.keys.asList.collect{|k|
+			k.asString.asCompileString ++ ":" + this.asJSON(d[k])
+			}).join(", ") ++ "}"
+		});
+		if(d.isKindOf(SequenceableCollection),
+		{
+			^"[" ++ d.collect({|x|this.asJSON(x)}).join(", ")++ "]";
+		});
+	}
+}