This repository is a curated collection of Chinese vocabulary lists for standardized tests (HSK 3.0, BCT, YCT), enriched with pinyin, zhuyin, part-of-speech tags, frequency data, and English definitions. It includes Python and JavaScript scripts for data cleaning, format conversion (TXT/TSV/XLSX), POS tag correction using SUBTLEX frequency corpus, and pinyin tone conversion. The data is organized by test level and version (2021 and 2025 HSK standards), with multiple output formats suitable for flashcard apps (Anki, Pleco) and language learning tools. The repository is primarily a data asset with supporting ETL scripts, not a production application. It demonstrates solid data engineering practices for language resource curation, though it suffers from some file duplication and hardcoded paths.