Operation Modes: Compress, decompress, archive, and extract files. Compression Algorithms: Gzip, Zstandard (Zstd), LZ4, S2 (Snappy), No Compression. Archive Formats: ZIP, TAR.GZ, TAR.XZ, (7z - future). Encryption: Password-based encryption with Argon2 and AES-GCM. Checksum Verification: MD5/CRC32 for file integrity. Cross-Platform: Supports Windows, macOS, and Linux.