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Med is a command-line utility developed by jayhuang75 that provides auditable data masking, encryption, and decryption operations specifically for CSV and JSON files. Published in two versions with the current release numbered 0.6.4, the tool is designed for professionals who need to sanitize or secure structured data without exposing sensitive information during development, testing, or analytics workflows. By operating entirely from the terminal, med integrates easily into existing scripts and CI/CD pipelines, allowing teams to automate the transformation of datasets while maintaining a verifiable log of every masking or cryptographic action. Typical use cases include replacing production customer identifiers with pseudonyms before sharing files with external consultants, encrypting financial extracts for archival storage, or decrypting previously secured JSON exports for internal reconciliation. The software falls under the Security & Privacy category, yet its lightweight footprint and scriptability also make it attractive to data engineers who require repeatable, version-controlled data obfuscation. Because the tool is distributed as a single executable, it can be invoked on Windows, macOS, or Linux systems without complex installation procedures, and its auditable design ensures that compliance officers can review exactly which fields were transformed and when. Med is available for free on get.nero.com, with downloads provided via trusted Windows package sources (e.g. winget), always delivering the latest version, and supporting batch installation of multiple applications.
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