Data Format Converters

Convert between CSV, JSON, XML and HTML

Data lives in different shapes depending on where it comes from. A spreadsheet exports CSV, an API returns JSON, an older or enterprise system might speak XML, and a web page needs an HTML table. These converters move a document from one of those shapes to another so you do not have to reformat it by hand — paste your data on the left, pick the target format, and copy the result.

Each converter parses the full document, not just the text: CSV headers become JSON keys, JSON arrays become table rows, and structure is preserved wherever the target format can represent it. Because the parsing and generation happen in your browser, large exports convert instantly and nothing is uploaded — a real difference from tools that post your data to a server. That makes these safe for production data, customer records and anything else you would not want to send to a third party.

Frequently asked questions

Is my data uploaded to a server?

No. CSV, JSON, XML and HTML are all parsed and generated by JavaScript running in your browser. Nothing you paste leaves your device, so it is safe to convert exports, API responses and other sensitive data.

Which data format should I convert to?

Use JSON when the data will be read by code or an API, CSV when it needs to open in Excel, Google Sheets or another spreadsheet, XML for systems that expect it (many enterprise and RSS feeds), and an HTML table when you want to paste it straight into a web page.

Will conversion keep my columns and nested structure?

Yes. CSV headers become object keys and back again, and the converters preserve nesting where the target format supports it. Formats such as CSV are flat by nature, so deeply nested JSON is flattened predictably rather than lost.

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