Run results for: JSON.stringify VS JSON.parse

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.0.0 Safari/537.36

Browser: Chrome 135

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Benchmark engine: Benchmark.js

JSON.stringify

3.7M/s

JSON.parse

2.5M/s

View exact numbers

Test name	Executions per second
✓ JSON.stringify	3,654,953 Ops/sec
JSON.parse	2,528,190 Ops/sec

Script Preparation code:

var obj = {
  description: 'Creates a deep copy of source, which should be an object or an array.',
  myNumber: 123456789,
  myBoolean: true,
  jayson: {
    stringify: 'JSON.stringify() method converts a JavaScript value to a JSON string....',
    parse: 'JSON.parse() method parses a JSON string...'
  }
};

var jsonString = '{"description":"Creates a deep copy of source, which should be an object or an array.","myNumber":123456789,"myBoolean":true,"jayson":{"stringify":"JSON.stringify() method converts a JavaScript value to a JSON string....","parse":"JSON.parse() method parses a JSON string..."}}'

Tests:

JSON.parse
JSON.parse(jsonString);
JSON.stringify
JSON.stringify(obj)

Run results for: JSON.stringify VS JSON.parse

compares the performance of json parse vs json stringify

JSON.parse

JSON.stringify