# Validate files against a schema

Shape / inspect

A variant of [Check data quality](https://meridian.online/operations/check-data-quality).

Check that XML, JSON or CSV content or files are well-formed and conform to a schema such as XSD, DTD or JSON Schema.

Page: <https://meridian.online/operations/check-data-quality/validate-files-against-a-schema>

## Status

Not built yet.

arcform does not do this yet. [Its place on the roadmap](https://meridian.online/roadmap#check-data-quality)

## What other tools call it

Meridian's classification; an independent blind rating agreed on 95.7% of 324 rows (variant, version 3).

- AWS Glue: [`FileFreshness`](https://docs.aws.amazon.com/glue/latest/dg/dqdl-rule-types.html) (read 2026-09-27)
- AWS Glue: [`FileMatch`](https://docs.aws.amazon.com/glue/latest/dg/dqdl-rule-types.html) (read 2026-09-27)
- AWS Glue: [`FileSize`](https://docs.aws.amazon.com/glue/latest/dg/dqdl-rule-types.html) (read 2026-09-27)
- AWS Glue: [`FileUniqueness`](https://docs.aws.amazon.com/glue/latest/dg/dqdl-rule-types.html) (read 2026-09-27)
- Apache Hop: [`Check if XML file is well-formed`](https://hop.apache.org/manual/latest/workflow/actions/xmlwellformed.html) (read 2026-09-27)
- Apache Hop: [`DTD validator`](https://hop.apache.org/manual/latest/workflow/actions/dtdvalidator.html) (read 2026-09-27)
- Apache Hop: [`XSD Validator`](https://hop.apache.org/manual/latest/pipeline/transforms/xsdvalidator.html) (read 2026-09-27)
- Apache Hop: [`XSD validator`](https://hop.apache.org/manual/latest/workflow/actions/xsdvalidator.html) (read 2026-09-27)
- KNIME Analytics Platform: [`JSON Schema Validator`](https://api.hub.knime.com/nodes/*0kEahkdYSSXawvOu?details=full) (read 2026-09-27)
- Apache NiFi: [`ValidateCsv`](https://nifi.apache.org/components/org.apache.nifi.processors.standard.ValidateCsv/) (read 2026-09-27)
- Apache NiFi: [`ValidateJson`](https://nifi.apache.org/components/org.apache.nifi.processors.standard.ValidateJson/) (read 2026-09-27)
- Apache NiFi: [`ValidateXml`](https://nifi.apache.org/components/org.apache.nifi.processors.standard.ValidateXml/) (read 2026-09-27)
- Pentaho Data Integration: [`XSD Validator`](https://docs.pentaho.com/pdia-data-integration/9.3-data-integration/pdi-transformation-steps-reference-overview) (read 2026-09-27)
- Talend: [`tDTDValidator`](https://help.qlik.com/talend/en-US/components/8.0/xml-validation/xml-validation-component) (read 2026-09-27)
- Talend: [`tJSONValidator`](https://help.qlik.com/talend/en-US/components/8.0/json-validation/json-validation-component) (read 2026-09-27)
- Talend: [`tXSDValidator`](https://help.qlik.com/talend/en-US/components/8.0/xml-validation/xml-validation-component) (read 2026-09-27)