JSON is a simple text format for storing and sharing data using names and values. JSON is a plain text way to write down data. It uses curly braces and pairs, like a name and its value.

Home › AI glossary › JSON

What is JSON?

Short answer

JSON is a simple text format for storing and sharing data using names and values.

Category Building with AI
Updated 20 Oct 2026

JSON, explained simply

JSON is a plain text way to write down data. It uses curly braces and pairs, like a name and its value.

It matters because apps and AI services use it to send data to each other. It is easy for people and programs to read.

For example, a weather app might get back a block of text with a city, a temperature and a time. That block is JSON.

You will often see JSON in settings files for AI tools. Small typos, like a missing comma, can break it.

On ITG Now, our free tool guides show JSON settings you can copy, and they point out the spots you need to change.

YAML API Structured output Markdown Webhook

Where you'll see it on ITG Now

Questions people ask about JSON

Is JSON a programming language?

No. It is a data format, a way of writing information down.

JSON vs YAML: what is the difference?

Both store data. JSON uses braces and quotes, while YAML uses indents and is often easier to read.

Why does my JSON file show an error?

Often it is a small typo, like a missing comma or quote. A JSON checker tool can point to the spot.

Sources

Last updated 20 Oct 2026

Browse all 200 AI terms