TryCF Gist

trycf-gist.cfm

<cfscript>
    function prettyPrintJSON (inputJSON) {
        var engine = createObject("java","javax.script.ScriptEngineManager").init().getEngineByName("nashorn");
            engine.eval("
            function prettyPrintJSON (data) {
                return JSON.stringify(JSON.parse(data), null, '\t');
            }
        ");
        return engine.invokeFunction("prettyPrintJSON", [inputJSON]);
    }
</cfscript>
<cfsavecontent variable="myJSON">
    {"a":1,"b":"foo","c":[true,false,null,"null",{"d":{"e":130000,"f":1.3e5}}]}
</cfsavecontent>
<cfoutput>
    <textarea style="width:100%; height: 100%">#prettyPrintJSON(myJSON)#</textarea>
</cfoutput>