XML Validator API integration

Features Overview

XML Validator API now provides V1 Beta with single-file validation, async batch jobs, and SARIF/JUnit outputs. Current status: V1 Beta. Response shape and error codes are stable with backward-compatible evolution.

Tool Description

Free XML validator online. Validate XML syntax, check XML against DTD or XSD schema rules, format documents, and convert XML to JSON for debugging API responses, feeds, and config files. Everything runs locally in your browser for private validation.

Capabilities Checklist

• `POST /api/xml/validate` for quick single-file validation.
• `POST /api/xml/validate/jobs` + polling endpoint for batch jobs.
• Output JSON / SARIF / JUnit as needed for direct CI integration.
• Use this stable contract directly in scripts and CI pipelines.
• XML syntax error or parsing failure.
• XSD itself is invalid or unusable.
• DTD declarations are invalid/incomplete or entity references are unresolved.
• XML does not satisfy DTD element-model or attribute constraints.
• XML does not satisfy schema constraints.
• Payload exceeds size limit (split or batch request).
• V1.1: add concurrency window and cancel support for batch jobs.
• V1.2: signed result download and configurable retention.
• V2: add Schematron rule chains and org-level quotas.