DataBrighten

    Sample JSON files

    17 filesready to download, in up to three sizes

    Each file is a JSON array of objects, one object per row, with numbers as numbers, true/false for yes/no columns and null for blanks. They load with pandas.read_json, JSON.parse or any API mock tool. Updated 3 November 2026.

    textnumberdateyes/no

    Need JSON with 10,000 rows or only some columns? The generator builds it in your browser.

    Sources: synthetic tables generated by DataBrighten (CC0); real data from USGS, U.S. Census Bureau, World Bank and Open-Meteo. Sources, licences and method.