OSINT Brazuca Regex is a CLI tool and curated dataset of regular expressions for detecting Brazilian and global PII/OSINT-relevant patterns. The scanner (`osint_regex_scan.py`) applies the dataset to files, directories, or stdin, supporting multi-threading, text extraction from documents (PDF, DOCX, XLSX, RTF, EPUB) via stdlib or optional `pypdf`/`pdftotext`, and noise filtering (blob masking, line length limits). Output formats include terminal, CSV, JSON, or raw values. The dataset is split into two JSON files (Brazil-specific and general), merged at load time, and includes patterns for CPF, CNPJ, credit cards, crypto wallets, API credentials, and more. The repository also includes a build script (`build.py`) for managing the split/merged dataset. Core functionality requires only Python 3.12+ stdlib, with optional dependencies for extended PDF support and encoding detection.