Product catalogs
Prepare supplier or ecommerce XML feeds for spreadsheet review and bulk imports.
Local processing · No uploads
01 XML, untangled
Turn nested XML into clean rows.
Find repeating records, pick the fields you need, and export a reusable CSV—without sending sensitive files to a server.
100%in your browser
UTF-8& UTF-16 support
ZIPbatch exports
1 Open2 Map3 Export
Drop XML files here
Open one file or apply one mapping to a same-structure batch.
Works withnested elementsattributesbatch ZIPcustom CSV
01Private by design
Raw files are never uploaded or stored.
02Repeatable results
Save mappings as portable recipe files.
03Built for messy XML
Handles nested nodes, attributes and CDATA.
XML to CSV, explained
A private XML to CSV converter for real-world data
XMLSlice turns repeating XML elements into spreadsheet-ready rows. It analyzes the document structure, suggests likely record groups, lets you choose exact fields, and previews the result before creating the CSV.
Conversion happens locally in the browser, making XMLSlice suitable for customer exports, product catalogs, invoices, API responses, SOAP data, and internal records that should not be sent to an unknown conversion server.
How it works
Convert XML to CSV in three steps
- 01
Open your XML
Choose a local XML file or use the sample. The file remains on your device.
- 02
Map records and columns
Select a repeating element, review detected paths, and keep only useful fields.
- 03
Preview and export
Check the first rows, save the mapping as a recipe, and download a UTF-8 CSV.
Flattening rules
How XML structures become CSV columns
XML is hierarchical while CSV is tabular. XMLSlice uses explicit, predictable rules so you can see how each source value will appear in the output.
| XML structure | CSV behavior | Example column |
|---|---|---|
| Repeated elements | Each selected record becomes one CSV row | order |
| Nested elements | Element names are preserved as a path | customer/name |
| Attributes | Attribute names receive an @ prefix | @id |
| Repeated leaf values | Values use a configurable separator | tags/tag |
| Missing values | The CSV cell remains empty | discount |
Common use cases
Built for exports, migrations, and analysis
Orders and invoices
Extract customer, total, status, tax, and line-level data from business exports.
API and SOAP responses
Turn saved XML responses into rows for debugging, reporting, or data analysis.
Legacy migrations
Inspect old XML backups and map selected fields into database-friendly CSV files.
XML conversion library
Guides for real XML structures
Learn how record boundaries, nested paths, attributes, encodings, and browser storage affect the resulting CSV before converting a production file.
Nested data guide
Nested XML
Convert nested XML to flat CSV rows in your browser. Detect repeating records, preserve child paths, preview columns, and export without uploading data.
Read guide →Large file workflowLarge XML
Convert large XML files to CSV with streaming parsing, Web Worker processing, cancellation, and disk-backed output—all without a server upload.
Read guide →Attribute mappingAttributes
Map XML attributes and nested elements to clear CSV columns. Attribute names use an @ prefix, values remain aligned with their record, and files stay local.
Read guide →Privacy-first conversionPrivate conversion
Convert sensitive XML to CSV without uploading the source file. XMLSlice runs locally in your browser with no account, remote parser, or server-side storage.
Read guide →Encoding guideUTF-16 XML
Convert UTF-16LE or UTF-16BE XML files to spreadsheet-friendly UTF-8 CSV. Detect byte order and declared encodings locally in your browser.
Read guide →API response workflowSOAP XML
Convert saved SOAP XML responses to CSV. Select repeating payload records, preserve namespace-prefixed paths, preview fields, and process files locally.
Read guide →Catalog workflowProduct feeds
Convert ecommerce and supplier product feed XML to CSV. Extract SKU, price, stock, category, attributes, and nested values locally in your browser.
Read guide →Complete conversion guideComplete guide
Learn how to convert XML to CSV: choose record boundaries, flatten nested elements and attributes, handle repeated values, prevent formula injection, and export safely.
Read guide →Clear by design
Known limits
- One repeating record group is exported at a time.
- Repeated leaf values default to
|and can use a custom separator. - DOCTYPE declarations and external entities are not supported.
- Maximum practical file size depends on the browser, storage, and device.
Questions and answers
XML to CSV FAQ
Does XMLSlice upload my XML file?
No. XMLSlice reads and converts the file inside your browser. The raw XML is not uploaded to XMLSlice or stored on a remote server.
Can it convert nested XML and attributes to CSV?
Yes. Nested element paths become CSV columns, attributes use an @ prefix, and repeated leaf values are joined in the same cell with a configurable separator.
Can XMLSlice convert multiple XML files at once?
Yes. Select same-structure XML files, map the first file, and export one CSV per source file in a locally generated ZIP archive. Batch ZIP output is capped at 512 MB of generated CSV data.
Which XML encodings are supported?
XMLSlice detects UTF-8, UTF-16LE and UTF-16BE input. It also reads supported encodings declared in the XML header and exports spreadsheet-friendly UTF-8 CSV.
Can XMLSlice process large XML files?
XMLSlice streams the input and runs parsing in a background Web Worker. CSV output is streamed to disk when the browser supports it, with disk-backed or memory fallbacks elsewhere. The practical maximum still depends on the browser, device storage, memory, and XML complexity.
What happens when an XML file contains multiple record lists?
XMLSlice shows the repeating record groups it detects. You choose one group for each CSV export, which keeps the row structure predictable.
Why are DOCTYPE declarations rejected?
DOCTYPE input is disabled as a security precaution. XMLSlice is designed for data records, feeds and exports that do not depend on external entities or DTD processing.