You need to JSON.parse() your valid JSON string.

var str = '{"hello":"world"}';
try {
  var obj = JSON.parse(str); // this is how you parse a string into JSON 
  document.body.innerHTML += obj.hello;
} catch (ex) {
  console.error(ex);
}

Answer from Chase Florell on Stack Overflow
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MDN Web Docs
developer.mozilla.org › en-US › docs › Web › JavaScript › Reference › Global_Objects › JSON › stringify
JSON.stringify() - JavaScript | MDN
The value to convert to a JSON string. ... A function that alters the behavior of the stringification process, or an array of strings and numbers that specifies properties of value to be included in the output. If replacer is an array, all elements in this array that are not strings or numbers (either primitives or wrapper objects), including Symbol values, are completely ignored.
Discussions

How to convert strings that look like JSON to JSON objects
Greetings All, I am running into a problem where my JSON objects cease being JSON objects and become strings when I do set variable and get variable in order to have them in scope in the final (top) path where I am building my final JSON payload which causes formatting issues (See the red lines): ... More on community.make.com
🌐 community.make.com
0
November 17, 2024
is sending data as JSON.Stringify is against rest principle
Axios converts the data object automatically to JSON before sending request. What you are doing here is sending an object with JSON string as a property value. So that results in request payload having JSON within JSON. I'm quite sure that is not what you want to do. I believe this is the way to go: axios.post("some_resources", { data: [{a:1},{b:2}] }) More on reddit.com
🌐 r/node
16
11
December 24, 2022
Cannot use JSON.parse on stringifyed object
Is data supposed to be a string? If so you'll have to double-escape, otherwise the single \ is escaping the quote in your main string and not the string data within the string. More on reddit.com
🌐 r/learnjavascript
9
1
October 7, 2022
[AskJS] PETITION: Make JSON.stringify use any object's toString method internally!
.toJSON already exists, it's just a not well known feature of JS. 6th bullet point. More on reddit.com
🌐 r/javascript
16
0
January 3, 2024
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freeCodeCamp
freecodecamp.org › news › json-stringify-example-how-to-parse-a-json-object-with-javascript
JSON Stringify Example – How to Parse a JSON Object with JS
January 5, 2021 - Luckily, this works the same way as in the browser – just use JSON.stringify() to convert JavaScript object literals or arrays into a JSON string:
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W3Schools
w3schools.com › js › js_json.asp
W3Schools.com
The JSON format is syntactically identical to the code for creating JavaScript objects. Because of this, a JavaScript program can easily convert JSON data into native JavaScript objects. JavaScript has a built in function for converting JSON strings into JavaScript objects: JSON.parse() JavaScript also has a built in function for converting an object into a JSON string: JSON.stringify() You can receive pure text from a server and use it as a JavaScript object.
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JSON Formatter
jsonformatter.org
Best JSON Formatter and JSON Validator: Online JSON Formatter
Online JSON Formatter / Beautifier and JSON Validator will format JSON data, and helps to validate, convert JSON to XML, JSON to CSV. Save and Share JSON
Find elsewhere
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W3Schools
w3schools.com › js › js_json_stringify.asp
JSON.stringify()
JSON.stringify() can not only convert objects and arrays into JSON strings, it can convert any JavaScript value into a string.
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Medium
medium.com › @debbie.obrien › json-parse-v-json-stringify-4b9d104c78d0
JSON Parse v JSON Stringify. I always get confused between the JSON… | by Debbie O'Brien | Medium
May 28, 2018 - JSON.stringify() converts a JavaScript object to a JSON string. When sending data to a web server, the data has to be a string.
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Dadroit
dadroit.com › string-to-json
Online String to JSON Converter
To convert String to JSON, visit the tool address, input your String data —or load your String file— and the tool will display the corresponding JSON output in real time.
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Online String Tools
onlinestringtools.com › json-parse-string
JSON Unstringify a String – Online String Tools
Quickly convert a string to a JSON string. ... Quickly convert a JSON stringified string to a regular string.
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DigitalOcean
digitalocean.com › community › tutorials › js-json-parse-stringify
How To Use JSON.parse() and JSON.stringify() | DigitalOcean
November 24, 2021 - The values have been transformed to uppercase characters. JSON.stringify() takes a JavaScript object and transforms it into a JSON string.
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ServiceNow Community
servicenow.com › community › developer-articles › json-stringify-making-json-look-pretty-and-perfect › ta-p › 2534944
JSON.stringify() - Making JSON Look Pretty and Per... - ServiceNow Community
December 9, 2025 - But wait, there's more! JSON.stringify() has many use cases beyond just making your code look pretty. For instance, if you're working with APIs, you can use it to convert your JSON object into a string that can be sent as a request.
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JavaScript.info
javascript.info › tutorial › the javascript language › data types
JSON methods, toJSON
The JSON (JavaScript Object Notation) is a general format to represent values and objects. It is described as in RFC 4627 standard. Initially it was made for JavaScript, but many other languages have libraries to handle it as well. So it’s easy to use JSON for data exchange when the client uses JavaScript and the server is written on Ruby/PHP/Java/Whatever. ... JSON.stringify to convert objects into JSON.
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Jsontostring
jsontostring.com
Convert JSON to String Online
Convert JSON to String Online with our tool. Our Javascript Object to String Converter can convert multiline content with full accuracy online.
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Make Community
community.make.com › questions
How to convert strings that look like JSON to JSON objects - Questions - Make Community
November 17, 2024 - Greetings All, I am running into a problem where my JSON objects cease being JSON objects and become strings when I do set variable and get variable in order to have them in scope in the final (top) path where I am building my final JSON payload which causes formatting issues (See the red lines): I thought I might be able to simply string everything into one long path to keep it simple, but one of the routers is really necessary as the ‘trip’ can have no stops, one stop or five stops AND I can...
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Execute Program
executeprogram.com › courses › modern-javascript › lessons › json-stringify-and-parse
Modern JavaScript: JSON Stringify and Parse
Learn programming languages like TypeScript, Python, JavaScript, SQL, and regular expressions. Interactive with real code examples.
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MDN
mdn2.netlify.app › en-us › docs › web › javascript › reference › global_objects › json › stringify
JSON.stringify() - JavaScript | MDN
March 27, 2022 - The JSON.stringify() method converts a JavaScript object or value to a JSON string, optionally replacing values if a replacer function is specified or optionally including only the specified properties if a replacer array is specified.
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W3Schools
w3schools.com › js › js_json_parse.asp
JSON.parse()
JSON Intro JSON Syntax JSON vs XML JSON Data Types JSON Parse JSON Stringify JSON Objects JSON Arrays JSON Server JSON PHP JSON HTML JSON JSONP JS jQuery
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npm
npmjs.com › package › fast-json-stringify
fast-json-stringify - npm
1 month ago - Missing fields are ignored to avoid having to rewrite objects before serializing. However, other schema rules would throw in similar situations. If additionalProperties is set to true, it will be used by JSON.stringify to stringify the additional properties. If you want to achieve maximum performance, we strongly encourage you to use a fixed schema where possible.
      » npm install fast-json-stringify
    
Published   Feb 06, 2026
Version   6.3.0
Author   Matteo Collina