7-Zip.

About 7-Zip

7-Zip is a free, open-source file archiver for Windows that lets developers and everyday users compress, extract, encrypt, and manage files efficiently. Its native 7z format uses strong LZMA and LZMA2 compression to create smaller archives, while the application also supports extracting and working with many popular formats, including ZIP, TAR, GZIP, BZIP2, RAR, ISO, and more. 7-Zip includes a straightforward file manager, Windows shell integration, archive testing, split-volume support, and command-line tools for scripting and automation. It also supports AES-256 encryption in 7z and ZIP archives, making it useful for securely packaging project files, backups, source code, datasets, and build artifacts. With no subscription or licensing cost, 7-Zip remains a practical utility for developers who need reliable archive management, strong compression, and automation-friendly tooling.