XML to CSV Converter Online 2026 - Fast, Secure & Private
Convert XML to CSV online instantly. Flatten complex XML data into easy-to-read CSV tables. 100% client-side privacy. Free online tool.
Key Features
- ✅ Automatic flattening of nested XML
- ✅ Custom delimiter support
- ✅ Header row generation
- ✅ Fast client-side processing
How to Use
- Paste your XML data or upload an .xml file
- Confirm or override the auto-detected repeating "row" element
- Click Convert to generate the CSV output
- Download or copy the CSV for use in spreadsheets or databases
Expert FAQ
- How does it decide which repeating element becomes a CSV row?
It looks for the shallowest element that repeats as a sibling under a common parent (e.g. <item> under <items>) and treats each occurrence as one row; that element's children and attributes become columns. If your document has repeating elements at more than one nesting depth (a common shape in nested order/line-item XML), you can point the converter at the specific repeating element explicitly rather than relying on auto-detection, since two equally plausible "row" candidates is genuinely ambiguous without knowing which one you actually want. - Do XML attributes and child elements both become columns, and can I tell them apart afterward?
Yes to both — attribute values and child-element text both flatten into columns, and attribute-derived columns are prefixed (matching the "@name" convention used by this site's XML to JSON converter) so you can distinguish <item id="5"> from a child <id>5</id> in the header row rather than having them collide under the same column name. - What happens to nested elements several levels deep — like an order with nested line items with nested tax fields?
They're flattened using dot-notation column names (shipping.address.city), the same convention used across this site's flattening converters, so the data stays queryable rather than collapsing into an opaque blob. A genuinely repeating nested collection (multiple line items per order) can't flatten into a single row without either duplicating the parent order's columns per line item or losing the association — if your XML has that shape, consider converting via XML to JSON first, where the nested array structure survives intact, then flatten deliberately with JSON to CSV. - A field value starts with "=" or "+" — is that a risk once the CSV is opened in Excel?
Yes — this is the same CSV injection risk that affects any CSV export, not specific to XML as a source: Excel and Google Sheets treat cell values starting with =, +, -, or @ as formulas by default. This converter prefixes such values to prevent formula execution on open, which matters if any of your XML's text content originated from untrusted or user-supplied input.
Technical Details
XML's hierarchy and CSV's flat grid are fundamentally different shapes, so converting between them requires picking a specific repeating element to treat as "one row" — usually the shallowest element that occurs multiple times as a sibling under a common parent. When a document has repeating structures at more than one depth (nested line items inside nested orders, for instance), auto-detection picks the most likely candidate, but an explicit row-element selector avoids ambiguity when there's a genuine choice to be made. Both attributes and child-element text flatten into columns, with attribute-derived columns marked using the same "@name" prefix convention as this site's XML to JSON converter, so a source attribute and a same-named child element don't collide in the output header row. Deeper nesting flattens to dot-notation column names (address.city, address.zip) to keep the data individually queryable rather than serialized into one unreadable cell — this mirrors how JSON to CSV handles the equivalent case. A structural limit worth knowing: a genuinely repeating nested collection (multiple line items per order, each with several sub-fields) can't cleanly become a single flat row without either duplicating the parent's columns per nested item or discarding the relationship — if that's your data's actual shape, converting via XML to JSON first preserves the nested arrays intact, and you can flatten deliberately from there with a tool designed for that specific transform. And regardless of source format, any text value beginning with =, +, -, or @ is prefixed to prevent it from executing as a formula when the resulting CSV is opened in Excel or Sheets — a real risk whenever the underlying XML contains user-supplied text. Validate the output afterward with the CSV Validator.