The tool is available at alconost.mt/mqm-tool and requires no registration.
MQM (Multidimensional Quality Metrics) is an industry-standard framework for assessing translation quality through human error annotation. It categorizes errors by type and severity and is the methodology used in evaluations conducted by the Workshop on Machine Translation (WMT). MQM annotations make it possible to calculate quality scores, compare machine translation systems or vendors, and document quality issues in a structured and reproducible way.
Until now, MQM annotation has often been difficult to adopt in practice due to complex setup, expensive platforms, or manual spreadsheet-based workflows. The Alconost MQM Annotation Tool addresses these challenges with a simple, browser-based workspace designed specifically for MQM annotation.
Users can annotate translations themselves, assign annotation tasks to linguists, or request professional MQM annotation services from Alconost. Key features include WMT-compatible MQM taxonomy support, customizable error severity weights, automatic score calculation, pass/fail thresholds, TSV and JSON import/export, and detailed online and PDF reports.
“Most MQM tools are built for research and are hard to use in everyday localization work,” said Alex Murauski, CEO of Alconost. “We wanted something simple and practical, a tool you can open, annotate, and use to clearly explain quality issues to teams, vendors, or customers.”
The tool is designed for localization managers, ML researchers and engineers, and language service providers seeking a practical way to apply MQM annotation in real-world workflows.
Start annotating:
alconost.mt/mqm-tool
On-demand MQM annotation services and custom datasets: mqm-tool@alconost.com
About Alconost
Alconost is a localization company specializing in translation, cultural adaptation, and continuous multilingual content updates. The company helps technology companies, game developers, and enterprises deliver high-quality multilingual content while clients focus on growing their business. Alconost also provides MQM-based annotation services and custom MQM dataset creation following WMT methodology.
