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Title: JSON.stringify() - JavaScript | MDN

Open Graph Title: JSON.stringify() - JavaScript | MDN

Description: 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.

Open Graph Description: 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.

Opengraph URL: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify

direct link

Domain: developer.mozilla.org

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Standard built-in objects	https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects
JSON	https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON
stringify()	https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify
	https://github.com/orgs/mdn/discussions/739
	https://developer.mozilla.org/de/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify
	https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify
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	https://developer.mozilla.org/ru/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify
	https://developer.mozilla.org/zh-CN/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify
Learn more	https://developer.mozilla.org/en-US/docs/Glossary/Baseline/Compatibility
See full compatibility	https://developer.mozilla.org/uk/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify#browser_compatibility
Report feedback	https://survey.alchemer.com/s3/7634825/MDN-baseline-feedback?page=%2Fen-US%2Fdocs%2FWeb%2FJavaScript%2FReference%2FGlobal_Objects%2FJSON%2Fstringify&level=high
Try it	https://developer.mozilla.org/uk/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify#try_it
Syntax	https://developer.mozilla.org/uk/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify#syntax
Description	https://developer.mozilla.org/uk/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify#description
Examples	https://developer.mozilla.org/uk/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify#examples
Specifications	https://developer.mozilla.org/uk/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify#specifications
Browser compatibility	https://developer.mozilla.org/uk/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify#browser_compatibility
See also	https://developer.mozilla.org/uk/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify#see_also
Try it	https://developer.mozilla.org/uk/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify#try_it
Syntax	https://developer.mozilla.org/uk/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify#syntax
Parameters	https://developer.mozilla.org/uk/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify#parameters
value	https://developer.mozilla.org/uk/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify#value
replacer Optional	https://developer.mozilla.org/uk/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify#replacer
Symbol	https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol
null	https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/null
space Optional	https://developer.mozilla.org/uk/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify#space
null	https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/null
Return value	https://developer.mozilla.org/uk/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify#return_value
Exceptions	https://developer.mozilla.org/uk/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify#exceptions
TypeError	https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/TypeError
BigInt	https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/BigInt
Description	https://developer.mozilla.org/uk/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify#description
Boolean	https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Boolean
Number	https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number
String	https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String
BigInt	https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/BigInt
Object()	https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/Object
Symbol	https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol
Object()	https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/Object
BigInt	https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/BigInt
undefined	https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/undefined
Function	https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function
Symbol	https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol
null	https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/null
Infinity	https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Infinity
NaN	https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/NaN
null	https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/null
JSON.rawJSON()	https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/rawJSON
Symbol	https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol
replacer	https://developer.mozilla.org/uk/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify#the_replacer_parameter
replacer	https://developer.mozilla.org/uk/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify#the_replacer_parameter
Temporal	https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Temporal
Date	https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date
toISOString()	https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toISOString
enumerable own properties	https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Enumerability_and_ownership_of_properties
Map	https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map
Set	https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Set
replacer	https://developer.mozilla.org/uk/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify#the_replacer_parameter
Object.keys()	https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/keys
The replacer parameter	https://developer.mozilla.org/uk/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify#the_replacer_parameter
Function	https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function
Symbol	https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol
undefined	https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/undefined
reviver	https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/parse#using_the_reviver_parameter
The space parameter	https://developer.mozilla.org/uk/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify#the_space_parameter
Examples	https://developer.mozilla.org/uk/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify#examples
Using JSON.stringify	https://developer.mozilla.org/uk/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify#using_json.stringify
Using a function as replacer	https://developer.mozilla.org/uk/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify#using_a_function_as_replacer
Using an array as replacer	https://developer.mozilla.org/uk/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify#using_an_array_as_replacer
Using the space parameter	https://developer.mozilla.org/uk/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify#using_the_space_parameter
toJSON() behavior	https://developer.mozilla.org/uk/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify#tojson_behavior
Issue with serializing circular references	https://developer.mozilla.org/uk/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify#issue_with_serializing_circular_references
JSON format	https://www.json.org/
IETF draft exists	https://datatracker.ietf.org/doc/html/draft-pbryan-zyp-json-ref-03
TypeError	https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/TypeError
cycle.js	https://github.com/douglascrockford/JSON-js/blob/master/cycle.js
structuredClone()	https://developer.mozilla.org/en-US/docs/Web/API/Window/structuredClone
v8.serialize()	https://nodejs.org/api/v8.html#v8serializevalue
Using JSON.stringify() with localStorage	https://developer.mozilla.org/uk/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify#using_json.stringify_with_localstorage
Well-formed JSON.stringify()	https://developer.mozilla.org/uk/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify#well-formed_json.stringify
well-formed JSON.stringify specification	https://github.com/tc39/proposal-well-formed-stringify
Specifications	https://developer.mozilla.org/uk/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify#specifications
ECMAScript® 2026 Language Specification# sec-json.stringify	https://tc39.es/ecma262/multipage/structured-data.html#sec-json.stringify
Browser compatibility	https://developer.mozilla.org/uk/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify#browser_compatibility
See also	https://developer.mozilla.org/uk/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify#see_also
Polyfill of modern JSON.stringify behavior (symbol, well-formed unicode, raw JSON) in core-js	https://github.com/zloirock/core-js#ecmascript-json
JSON.parse()	https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/parse
JSON.rawJSON()	https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/rawJSON
Learn how to contribute	https://developer.mozilla.org/en-US/docs/MDN/Community/Getting_started
MDN contributors	https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify/contributors.txt
View this page on GitHub	https://github.com/mdn/content/blob/main/files/en-us/web/javascript/reference/global_objects/json/stringify/index.md?plain=1
Report a problem with this content	https://github.com/mdn/content/issues/new?template=page-report.yml&mdn-url=https%3A%2F%2Fdeveloper.mozilla.org%2Fen-US%2Fdocs%2FWeb%2FJavaScript%2FReference%2FGlobal_Objects%2FJSON%2Fstringify&metadata=%3C%21--+Do+not+make+changes+below+this+line+--%3E%0A%3Cdetails%3E%0A%3Csummary%3EPage+report+details%3C%2Fsummary%3E%0A%0A+Folder%3A+%60en-us%2Fweb%2Fjavascript%2Freference%2Fglobal_objects%2Fjson%2Fstringify%60%0A+MDN+URL%3A+https%3A%2F%2Fdeveloper.mozilla.org%2Fen-US%2Fdocs%2FWeb%2FJavaScript%2FReference%2FGlobal_Objects%2FJSON%2Fstringify%0A+GitHub+URL%3A+https%3A%2F%2Fgithub.com%2Fmdn%2Fcontent%2Fblob%2Fmain%2Ffiles%2Fen-us%2Fweb%2Fjavascript%2Freference%2Fglobal_objects%2Fjson%2Fstringify%2Findex.md%0A+Last+commit%3A+https%3A%2F%2Fgithub.com%2Fmdn%2Fcontent%2Fcommit%2F544b843570cb08d1474cfc5ec03ffb9f4edc0166%0A*+Document+last+modified%3A+2025-07-10T09%3A07%3A55.000Z%0A%0A%3C%2Fdetails%3E
Standard built-in objects	https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects
JSON	https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON
isRawJSON()	https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/isRawJSON
parse()	https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/parse
rawJSON()	https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/rawJSON
stringify()	https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify
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