MzML Validator

mzML Validator provides rapid, domain-specific validation of mzML files used in mass spectrometry workflows. It accepts mzML uploads or XML content and performs both structural checks and schema-based validation against mzML standards. The tool locates issues with precise element paths and line references, enabling targeted fixes. Users include researchers, core facility staff, and data engineers who need to ensure data integrity before downstream analysis. By separating structural validation from semantic interpretation, it minimizes false positives and focuses on format correctness, version compatibility, and unit consistency. Core features include streaming support for large files, detailed error reports, and export options for integration into pipelines. Unique value lies in mzML-specific validation depth, version-aware schema checks, and machine-readable outputs suitable for automated QA processes. Use cases cover pre-submission checks for repositories, QA in proteomics cores, and data curation for large-scale MS studies. The tool is designed to be fast, deterministic, and easily auditable, reducing time-to-analysis and improving data quality across labs.