JSON 格式化器

格式化、验证和美化 JSON 数据

输入
结果

格式化和美化

自动格式化和美化 JSON,并适当缩进

最小化

通过删除空白来压缩 JSON,以缩小文件大小

验证

检查 JSON 是否有效且格式正确

What is JSON?

JSON (JavaScript Object Notation) is a lightweight data interchange format that is easy for humans to read and write, and easy for machines to parse and generate. It's the most popular format for API responses and configuration files.

Human Readable

Clear structure with key-value pairs

Language Independent

Supported by virtually all programming languages

Lightweight

Minimal overhead compared to XML

Widely Used

Standard for REST APIs and web services

How to Use the JSON Formatter

  1. Paste your JSON - Enter or paste JSON data into the input field
  2. Choose an action - Click Format to beautify, Minify to compress, or Validate to check
  3. Copy the result - Use the copy button to get the processed JSON

Frequently Asked Questions

What does "Format" do?

Formatting adds proper indentation and line breaks to make JSON human-readable. You can choose between 2-space, 4-space, or tab indentation.

What does "Minify" do?

Minifying removes all unnecessary whitespace, reducing the JSON size. This is useful for API requests or storage optimization.

How does validation work?

The validator parses your JSON and checks for syntax errors like missing brackets, invalid quotes, or trailing commas. It shows the exact error location if problems are found.

Is my data secure?

Yes! All processing happens in your browser. Your JSON data is never sent to any server.

Free JSON Formatter & Validator - Format, Minify, Validate JSON Online | CatLove Cloud