How does pretty-printing help debug an ETL transformation error?

Readable indentation makes element hierarchy and nesting immediately visible. You can quickly spot missing nodes, incorrect attribute values, or unexpected element ordering that would be invisible in a single-line blob.

Can I tell which files in a batch were malformed after processing?

Yes. Malformed files are returned unchanged, so any file that still looks compressed or unindented after the batch completes was not successfully parsed — which isolates your problem files.

Is there a size limit on XML files?

Batches support up to 50 files or 2 GB total. Very large individual files may be returned unchanged as a safety measure rather than parsed.

Does this tool validate XML schema or just format it?

It formats only — it does not validate against an XSD or perform schema checking. Use it to make files readable; validation is a separate step.

Format XML Extracts and Outputs for ETL Pipeline Debugging

When an ETL job produces malformed or unexpected XML, the first step to diagnosing the problem is being able to read the file. Compressed, single-line XML extracts make that impossible. Deliteful reformats them instantly so you can trace exactly where the transformation went wrong.

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ETL workflows that touch XML often deal with three categories of files: source system exports (dense, machine-generated), mid-pipeline transformation outputs (potentially malformed due to mapping errors), and destination validation files (needed for auditing load results). All three benefit from readable formatting before inspection, and processing them one by one wastes time during a debugging session.

Deliteful supports batch formatting — up to 50 files or 2 GB per upload — so you can reformat an entire set of pipeline stage outputs simultaneously. Well-formed files get consistent indentation; malformed ones are returned unchanged and identifiable, which itself is diagnostic information. Files are processed server-side and downloaded directly, with no persistent storage of your data.

How it works

1
Log in free
Create a Deliteful account via Google OAuth — no credit card, approximately 10 seconds.
2
Upload pipeline XML files
Batch-upload XML extracts or transformation outputs, up to 50 files or 2 GB per session.
3
Format
Well-formed XML is reformatted with clean indentation; malformed files are flagged by being returned as-is.
4
Inspect and download
Review formatted output to pinpoint schema mismatches or transformation errors, then download results.

Frequently asked questions

How does pretty-printing help debug an ETL transformation error?: Readable indentation makes element hierarchy and nesting immediately visible. You can quickly spot missing nodes, incorrect attribute values, or unexpected element ordering that would be invisible in a single-line blob.
Can I tell which files in a batch were malformed after processing?: Yes. Malformed files are returned unchanged, so any file that still looks compressed or unindented after the batch completes was not successfully parsed — which isolates your problem files.
Is there a size limit on XML files?: Batches support up to 50 files or 2 GB total. Very large individual files may be returned unchanged as a safety measure rather than parsed.
Does this tool validate XML schema or just format it?: It formats only — it does not validate against an XSD or perform schema checking. Use it to make files readable; validation is a separate step.