json
Quoting from the home page of
JSON
JSON (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.
note
Individual 'words' that are extremely long may be broken into two or more lines to conserve horizontal space.
Trail: