Convert XML to NDJSON Online Free
Convert XML documents to NDJSON (Newline Delimited JSON). Each top-level XML element becomes a separate JSON object on its own line — ideal for feeding XML data into log pipelines, Kafka topics, or streaming APIs.
By ChangeThisFile Team · Last updated: March 2026
ChangeThisFile converts your XML file to NDJSON on our server. Each top-level XML element becomes one JSON object per line. Useful for preparing XML exports for streaming pipelines or log ingestion tools. Free, no signup, file deleted immediately after conversion.
Convert XML to NDJSON
Drop your XML file here to convert it instantly
Drag & drop your .xml file here, or click to browse
Convert to NDJSON instantly
XML vs NDJSON: Format Comparison
Key differences between the two formats
| Feature | XML | NDJSON |
|---|---|---|
| Format type | Hierarchical markup with tags | One JSON object per line |
| Streaming support | Must parse full document | Read and process line by line |
| File size | Verbose due to opening/closing tags | Compact, no wrapper structure |
| Tool support | XSLT, XPath, DOM parsers | jq, Kafka, Elasticsearch, logging tools |
| Schema validation | XSD, DTD, RelaxNG | JSON Schema per line |
| Comments | Native XML comments supported | Not supported |
| Readability | Structured but verbose | Dense, one object per line |
When to Convert
Common scenarios where this conversion is useful
Feed XML exports into log pipelines
Convert XML exports from enterprise systems (ERP, CRM) into NDJSON for direct ingestion into Elasticsearch, Splunk, or Datadog without custom parsing logic.
Prepare XML data for Kafka topics
Transform XML event files into NDJSON so each record maps to a single Kafka message. NDJSON's line-per-object structure matches Kafka's message model directly.
Migrate XML data to JSON-native storage
Convert legacy XML configuration or data exports to NDJSON as an intermediate step before loading into MongoDB, DynamoDB, or other JSON-native databases.
Batch XML record processing
Convert XML files with repeated elements (e.g., invoice records, product catalogs) into NDJSON for line-by-line processing with tools like jq or Python's json module.
How to Convert XML to NDJSON
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1
Upload your XML file
Drag and drop your .xml file or click to browse. The file is uploaded over an encrypted HTTPS connection.
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2
Server converts to NDJSON
The server parses the XML document and writes each top-level element as a JSON object on its own line. File deleted immediately after conversion.
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3
Download the NDJSON result
Click Download to save your .ndjson file. Each line is a complete, valid JSON object ready for streaming or batch processing.
Frequently Asked Questions
Each top-level child element of the XML root becomes one JSON object per line in the NDJSON output. Nested XML elements become nested JSON objects or arrays.
XML attributes are preserved in the JSON output, typically as keys prefixed with '@' or merged into the element's JSON object depending on the conversion mapping.
Yes, up to the 50 MB upload limit. Large XML files with thousands of records convert quickly since the NDJSON output is typically smaller than the source XML.
NDJSON (Newline Delimited JSON) is used for log streaming, event pipelines, Kafka messages, and bulk exports to JSON-native databases. Each line is a self-contained JSON object.
Yes. NDJSON and JSONL are identical formats — one JSON object per line, separated by newlines. The converter outputs files with the .ndjson extension.
Namespace prefixes are included in key names in the JSON output. Complex namespace-heavy documents may require post-processing to normalize key names.
Mixed content nodes (elements containing both text and child elements) are converted using a representation that preserves both the text value and child element structure.
Yes. Your XML file is uploaded over encrypted HTTPS, converted, and deleted from our servers immediately after download.
Yes. ChangeThisFile also offers NDJSON to XML conversion if you need to reverse the process or round-trip your data.
XML can be converted to JSON, YAML, CSV, TSV, HTML, and Markdown on ChangeThisFile. Choose the format that best fits your downstream tool.
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Use the ChangeThisFile API to convert XML to NDJSON in your app. No rate limits, up to 500MB files, simple REST endpoint.
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