JSON File (.JSON)
JSON (JavaScript Object Notation) is a lightweight, text-based data interchange format derived from JavaScript object literal syntax. It supports nested objects, arrays, strings, numbers, booleans, and null values in a hierarchical structure. JSON has become the dominant data format for web APIs, configuration files, and modern application data exchange.
Advantages of JSON File
What the JSON format does well, and why you might choose it.
- Native support in JavaScript and first-class parsing in virtually all programming languages
- Supports hierarchical nested data structures with objects and arrays
- Human-readable and relatively compact compared to XML
Limitations of JSON File
What the JSONformat doesn't do well, and when to choose another format.
- No support for comments, making annotated configuration files difficult
- No native date, binary, or custom data type support
- No schema enforcement by default, requiring external validation tools
What JSON files are used for
- Web API request and response payloads (REST APIs)
- Application configuration files and settings
- NoSQL database storage and document interchange
Convert to JSON
The most common formats people convert to JSON, ready to convert in seconds.
Convert JSON to other formats
Convert JSON File files into the format you actually need.
Frequently asked questions about JSON
What is a .JSON file?
JSON (JavaScript Object Notation) is a lightweight, text-based data interchange format derived from JavaScript object literal syntax. It supports nested objects, arrays, strings, numbers, booleans, and null values in a hierarchical structure. JSON has become the dominant data format for web APIs, configuration files, and modern application data exchange.
What is the MIME type of JSON?
The official MIME type for JSON files is application/json. This is the value web servers and applications use to identify the format when transferring files.
What category does JSON belong to?
JSON is a Data Converter format. Files in this category share common conversion paths and use cases.
How do I open a .JSON file?
JSON files are typically opened by software that natively supports the JSON Fileformat. If you don't have a compatible application, the most reliable approach is to convert the file to a more universal format using the converters listed above. Most JSON File files convert to widely-supported alternatives in seconds.
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