美化 JSON
格式化并美化 JSON 代码
验证 JSON
检查 JSON 是否有效且格式正确。
JSON 工具
什么是 JSON 验证？
JSON（JavaScript 对象表示法）是一种轻量级数据交换格式。JSON 验证可确保数据结构符合 JSON 标准。有效的 JSON 对象必须具备以下特征：- 属性名称用双引号括起来。- 正确匹配的花括号 大括号。- 最后一个键值对后没有尾随逗号。- 对象和数组的嵌套正确。此工具会检查输入的 JSON 并提供反馈，以帮助识别和修复常见错误。
输入 JSON
验证结果
验证 JSON 示例
Valid JSON Object
This example shows a correctly formatted JSON object. All property names and string values are enclosed in double quotes, and the overall structure is properly balanced with opening and closing braces.
Input
{
"name": "John",
"age": 30,
"city": "New York"
}
{
"name": "John",
"age": 30,
"city": "New York"
}
Output
✅ Valid JSON
✅ Valid JSON
Invalid JSON Missing Quotes
This example demonstrates an invalid JSON object where the property names are not enclosed in double quotes. According to the JSON standard, property names must always be enclosed in double quotes. Omitting the quotes will result in a syntax error.
Input
{
name: "John",
age: 30,
city: "New York"
}
{
name: "John",
age: 30,
city: "New York"
}
Output
❌ Error: Expected property name or '}' in JSON
❌ Error: Expected property name or '}' in JSON
Invalid JSON with Trailing Comma
This example shows an invalid JSON object with a trailing comma after the last key-value pair. In JSON, trailing commas are not allowed because they create ambiguity when parsing the data structure.
Input
{
"name": "John",
"age": 30,
"city": "New York",
}
{
"name": "John",
"age": 30,
"city": "New York",
}
Output
❌ Error: Expected double-quoted property name
❌ Error: Expected double-quoted property name