How can I beautify JSON programmatically? [duplicate]

Question

This question already has answers here:

pretty-print JSON using JavaScript (32 answers)

Closed 8 years ago.

Do you know of any "JSON Beautifier" for JavaScript?

From

{"name":"Steve","surname":"Jobs","company":"Apple"}

To

{
 "name" : "Steve",
 "surname" : "Jobs",
 "company" : "Apple"
}

Example

some_magic(jsonObj); // return beautified JSON

• SeanJA: Why do you need to beautify it programmatically? Is it being displayed on a web page?
• NickFitz: I'm rather amused to see so many "solutions" referenced in the answers, all solving a problem that is, per Andy E's answer, already catered for by the standard API. A lesson to us all: read the documentation of existing APIs before either seeking or implementing a solution to a requirement ;-)
• Kesava Karri: If someone is looking for this stackoverflow.com/a/39183263/9295698

Answer 1

Programmatic formatting solution:

The JSON.stringify method supported by many modern browsers (including IE8) can output a beautified JSON string:

JSON.stringify(jsObj, null, "\t"); // stringify with tabs inserted at each level
JSON.stringify(jsObj, null, 4); // stringify with 4 spaces at each level

Demo: http://jsfiddle.net/AndyE/HZPVL/ 

This method is also included with json2.js, for supporting older browsers.

Manual formatting solution

If you don't need to do it programmatically, Try JSON Lint. Not only will it prettify your JSON, it will validate it at the same time.

• timborden: Awesome...thanks! (It might be worth adding that white-space:pre in the css is needed as well)
• codefreak: on html page, wrap your output in <pre></pre> tags
• absynce: I use JSON.stringify and toastr to output for debugging. Live Example
• tandrewnichols: Knew about null, 2, but didn't know that '\t' would work too. Fantastic!
• luckybroman5: I find jsonlint.com a little cumbersome. A MUCH quicker workflow is kadebom.com/jsonlint.html IMO