Data & configuration
JSON
JavaScript Object Notation is an open standard file format and data interchange format that uses human-readable text to store and transmit data objects consisting of attribute–value pairs and arrays.
- Created by
- Douglas Crockford
- First appeared
- 2001
- Official resource
- Visit the main website
Your first program
Hello, World!
{ "message": "Hello, World!" }Keep learning
Where to go from here
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Official resource
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Use a focused prompt covering strengths, tradeoffs, setup, and this first program.
Teach me the basics of JSON. Use https://code.study/json as the starting point. Explain what JSON is best suited for, when I should not choose it, how to install or try it, and then walk me through its Hello World example step by step.
Content reviewed August 2026 · Start with primary sources and verify version-specific details.