json
Quoting from the home page of JSONJSON (JavaScript Object Notation) is a lightweight data-interchange format. It is easy for humans to read and write. It is easy for machines to parse and generate.
syntax highlighting:
Colour for text and null values.Colour for numbers.
Colour for true and false values.
Colour for void values.
Background for Objects.
Background for Arrays.
Background for Object name/value pair tables.
Background for Array value tables.