ZeroServer.tools

JS Object to JSON

Convert JavaScript object literals to valid JSON — handles unquoted keys, single quotes, trailing commas, and comments.

JavaScript Object

Valid JSONValid

{
  "name": "My App",
  "version": "1.0.0",
  "settings": {
    "debug": true,
    "timeout": 30,
    "hosts": [
      "localhost",
      "127.0.0.1"
    ]
  },
  "tags": [
    "web",
    "api"
  ]
}

How JS Object to JSON conversion works

JavaScript object literals differ from JSON in several ways: keys can be unquoted, strings can use single quotes, trailing commas are allowed, and comments are permitted. This tool applies a series of regex transformations to sanitize the input — removing comments, converting single quotes, quoting bare keys, and stripping trailing commas — then validates the result by parsing it with JSON.parse. The output is always valid, formatted JSON.

Private & free — this tool runs entirely in your browser.