XLIFF Validator

The online XLIFF validator ingests a translation interchange file and verifies structural integrity against the XLIFF schemas for versions 1.2 and 2.0. It parses the XML, ensures required top-level elements exist, and checks that language and source/target units are present when required. In practice, teams use it before sending files to translation vendors, publishing localized content, or ingesting bundles into TMS workflows. The validator focuses on correctness rather than translation quality, returning a machine-readable report that highlights offending nodes with paths and line references.

After parsing, the tool applies a set of domain rules: schema conformance, valid tag pairing, proper attribute usage, and encoding checks (UTF-8). It can run with strict mode to enforce project-specific conventions, or with a relaxed mode for initial sanity checks. Optional features allow per-project configurations and custom XPath-based rules to flag nonstandard structures, such as unsupported XLIFF extensions or missing glossary references. Results include error counts, severity levels, and exact element locations to ease remediation.

Benefits come from early defect detection, repeatable validation in CI pipelines, and consistent data exchange across localization teams. Stakeholders such as localization engineers, QA analysts, and content managers gain confidence that XLIFF artifacts will integrate with downstream tooling, reduce rework, and improve throughput. The tool outputs a structured JSON report suitable for automated processing and manual review, and it can be extended with additional validation rules as project needs evolve.