JSON to HTML

Render JSON as a clean HTML page

Raw JSON in a browser is a wall of brackets. JSON to HTML converts a JSON file into a standalone HTML page that people can read: tables for records, headed sections for nested data, and colour cues for numbers, booleans and null. The page has its own embedded stylesheet and no scripts, so it can be attached to an email, dropped into a wiki or served from any web server.

Paste the JSON or drop a .json file. A list of objects becomes a table with the keys as headers and nested keys as dotted columns. An object at the top level becomes a page with a summary table of its simple fields and one section per nested field. Short lists are written inline; long lists become bullet lists; a two-dimensional array becomes a grid. Every value is escaped, so JSON that contains HTML tags or script text is displayed as text and cannot run in the page. Documents exported by PDF to JSON or Word to JSON render as documents with their headings and paragraphs.

The result prints well and reads correctly in right-to-left languages. For a PDF version use JSON to PDF; to edit the content in a word processor use JSON to Word; and to turn an existing web page back into text, use HTML to Markdown.