All current browsers have native JSON support built in. So as long as you're not dealing with prehistoric browsers like IE6/7 you can do it just as easily as that:

var j = {
  "name": "binchen"
};
console.log(JSON.stringify(j));

Answer from Andris on Stack Overflow
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W3Schools
w3schools.com › js › js_json_stringify.asp
JSON.stringify()
JS Examples JS HTML DOM JS HTML Input JS HTML Objects JS HTML Events JS Browser JS Editor JS Exercises JS Quiz JS Website JS Syllabus JS Study Plan JS Interview Prep JS Bootcamp JS Certificate JS Reference ... A common use of JSON is to exchange data to/from a web server. When sending data to a web server, the data has to be a string. You can convert any JavaScript datatype into a string with JSON.stringify().
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W3Schools
w3schools.io › file › json-javascript
Javascript to parse, write, pretty json file(Examples) - w3schools
There are multiple ways we can do it, Using JSON.stringify method · JSON stringifymethod Convert the Javascript object to json string by adding the spaces to the JSOn string and printing in an easily readable format.
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MDN Web Docs
developer.mozilla.org › en-US › docs › Web › JavaScript › Reference › Global_Objects › JSON › stringify
JSON.stringify() - JavaScript | MDN - Mozilla
The JSON.stringify() static method converts a JavaScript 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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ReqBin
reqbin.com › code › javascript › x1ezvres › javascript-object-to-json-example
How do I convert object to JSON in JavaScript?
When converting a JavaScript object to JSON with the JSON.stringify(value, replacer, space) method, you can use the "replacer" function to alter the resulting JSON.
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W3Schools
w3schools.com › js › js_json_objects.asp
JSON Object Literals
JSON cannot be an object. JSON is a string format. The data is only JSON when it is in a string format. When it is converted to a JavaScript variable, it becomes a JavaScript object.
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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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W3Schools
w3schools.com › js › js_json_parse.asp
JSON.parse()
A common use of JSON is to exchange data to/from a web server. When receiving data from a web server, the data is always a string. Parse the data with JSON.parse(), and the data becomes a JavaScript object.
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W3Schools
w3schools.com › jsref › jsref_obj_json.asp
JavaScript JSON Reference
// a JavaScript object...: var myObj = { "name":"John", "age":31, "city":"New York" }; // ...converted into JSON: var myJSON = JSON.stringify(myObj); // send JSON: window.location = "demo_json.php?x=" + myJSON; Try it Yourself »
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GeeksforGeeks
geeksforgeeks.org › javascript › how-to-convert-js-object-to-json-string-in-jquery-javascript
How to Convert JS Object to JSON String in JQuery/Javascript? - GeeksforGeeks
July 12, 2025 - Converting a JavaScript object to a JSON string means using the JSON.stringify() method to transform the object into a JSON-formatted string.
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ReqBin
reqbin.com › code › javascript › wqoreoyp › javascript-json-stringify-example
How to stringify a JavaScript object to JSON string?
January 31, 2023 - The JSON.stringify(value, replacer, space) method converts JavaScript objects to a JSON string. The resulting JSON string is a JSON-formatted or serialized object that can be sent over the network or stored on a disk.
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W3schoolsapp
w3schools.w3schoolsapp.com › js › js_json_syntax.html
JSON Syntax
You will learn how to convert JSON text to a JavaScript object, and convert a JavaScript object into JSON, later in this tutorial. --> ... Tabs Dropdowns Accordions Side Navigation Top Navigation Modal Boxes Progress Bars Parallax Login Form HTML Includes Google Maps Range Sliders Tooltips Slideshow Filter List Sort List ... If you want to report an error, or if you want to make a suggestion, do not hesitate to send us an e-mail: ... Your message has been sent to W3Schools.
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GeeksforGeeks
geeksforgeeks.org › javascript › how-to-convert-json-to-string-in-javascript
How to Convert JSON to string in JavaScript ? - GeeksforGeeks
July 23, 2025 - Using template literals to convert a JSON object to a string involves mapping over the object's entries and formatting each key-value pair as a string. This approach leverages JavaScript's Object.entries method and template literals for concise ...
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Pluralsight
pluralsight.com › tech insights & how-to guides › tech guides & tutorials
Convert Strings to JSON Objects in JavaScript with eval() | Pluralsight
March 31, 2025 - The array of objects is now converted to JSON, and it can be sent over to the server to pass the request as a JSON file format using the stringify() function. The eval() function in JavaScript is used to take an expression and return the string.
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MDN Web Docs
developer.mozilla.org › en-US › docs › Web › JavaScript › Reference › Global_Objects › JSON › parse
JSON.parse() - JavaScript - MDN Web Docs
The string to parse as JSON. See the JSON object for a description of JSON syntax. ... If a function, this prescribes how each value originally produced by parsing is transformed before being returned. Non-callable values are ignored. The function is called with the following arguments: ... The key associated with the value. ... The value produced by parsing. ... A context object that holds state relevant to the current expression being revived.
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W3Schools
w3schools.com › js › js_json.asp
JavaScript JSON
Then, use the JavaScript built-in function JSON.parse() to convert the string into a JavaScript object:
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ConvertSimple
convertsimple.com › convert-javascript-to-json
Convert Javascript Object to JSON Online - ConvertSimple.com
October 17, 2020 - Need an example of what JSON looks like? Get example JSON. Paste your JavaScript Object input into the left input box and it will automatically convert it into JSON.
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MDN Web Docs
developer.mozilla.org › en-US › docs › Web › JavaScript › Reference › Global_Objects › JSON
JSON - JavaScript - MDN Web Docs
When serialized to JSON, the raw JSON object is treated as if it is already a piece of JSON. This text is required to be valid JSON. ... Return a JSON string corresponding to the specified value, optionally including only certain properties or replacing property values in a user-defined manner.
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W3Schools
w3schools.com › js › js_json_php.asp
JSON PHP
Before you send the request to the server, convert the JSON object into a string and send it as a parameter to the url of the PHP page: Use JSON.stringify() to convert the JavaScript object into JSON: