About JSON Standards & Documentation | Comprehensive Developer Resources

Complete documentation on JSON standards (RFC 8259, ECMA-404), best practices, validation schemas and conversion techniques for modern web development.

Official Specifications

RFC 8259 - The JSON Data Interchange Standard

The official Internet Engineering Task Force (IETF) standard defining the JSON data interchange format syntax and semantics.

ECMA-404 - The JSON Data Interchange Syntax

Standardized JSON data interchange format specification maintained by Ecma International.

JSON Schema Specification

Standard for annotating and validating JSON documents with schemas (draft 2020-12).

Learning Resources

JSON.org Official Documentation

The original and most authoritative JSON reference created by Douglas Crockford, the inventor of JSON.

MDN Web Docs: Working with JSON

Mozilla's comprehensive guide to JSON including parsing, stringifying and best practices.

JSON API Specification

Standard for building APIs in JSON with conventions for requests and responses.

Advanced Topics

JSON5 Specification

Superset of JSON with extended syntax including comments, trailing commas and more.

JSON Schema Tutorial

Step-by-step guide to validating JSON documents with JSON Schema.

JSONPath Standard (RFC 9535)

Official standard for querying JSON documents with JSONPath expressions.

JSON Fundamentals

Core JSON Syntax

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 is based on a subset of the JavaScript Programming Language Standard.

  • Data is in name/value pairs
  • Data is separated by commas
  • Curly braces hold objects {}
  • Square brackets hold arrays []
  • Strings must be double-quoted "string"
  • Numbers can be integers or floating point
  • Values can be: string, number, object, array, boolean or null

JSON Best Practices

Development Guidelines

  • Use UTF-8 encoding for maximum compatibility
  • Validate JSON against schemas in production environments
  • Minify JSON for production, pretty-print for development
  • Use consistent indentation (2 or 4 spaces)
  • Consider compression for large JSON payloads
  • Document your JSON structures with schemas
  • Use meaningful key names with consistent casing
  • Consider versioning for API response formats
  • Implement proper error handling for parsing

Available JSON Tools

Conversion Tools