7-Zip

7-Zip is a high-compression ratio open-source file archiver for Windows. Featuring its proprietary 7z archive format with LZMA compression, it also fully supports compressing and unpacking ZIP, TAR, GZ, and RAR archives. It supports AES-256 encryption, multi-threaded CPU performance, and seamless Windows Shell integration while maintaining a tiny memory footprint with zero ads or upsell prompts.