Keyboard QWERTY Tester

Purpose and scope of the tool are to verify that a given keyboard layout produces the expected characters when a test string is typed. It targets QA engineers, developers, educators, and accessibility researchers who need to confirm input consistency across layouts on multilingual devices. The tool accepts a selected layout and a test string, returning per-character results and an overall accuracy score. Conceptually, it relies on standardized layout maps to translate physical keys to characters and compares the produced output against the input string. It can flag characters that have no mapping in the chosen layout and compute metrics such as the ratio of matches to total characters. The value lies in quickly diagnosing mapping issues that can cause input errors in software, forms, and assistive technologies, especially when deploying applications across regions with different keyboard conventions. Core features include supported layouts (US_QWERTY, UK_QWERTY, AZERTY, DVORAK), case sensitivity options, per-character reporting, and export-ready results. The output includes an array of per_char results with fields for the original character, produced character, key code, and status, plus summary metrics like total_tested, matches, mismatches, and accuracy. Use cases span software QA pipelines, localization testing, and education on layout differences. The tool emphasizes data output over user interface concerns, enabling automation and integration into testing workflows.