TAR.Z (TZ) to ARJ Converter
Convert your tar.z files to arj online & free
tar.z
arj
How to convert TAR.Z to ARJ
Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.
Choose arj or any other format you need as a result (more than 200 formats supported)
Let the file convert and you can download your arj file right afterwards
About formats
TAR.Z is a compound archive format combining TAR) archiving with Unix compress, one of the earliest general-purpose data compression tools available on Unix systems. The compress utility, originally written by Spencer Thomas, Joe Orost, and others around 1985, implements adaptive LZW (Lempel-Ziv-Welch) compression — a dictionary-based algorithm that builds a translation table during compression and decompression. The TAR layer bundles files with full Unix metadata into a single stream, and compress reduces the stream size typically by 40-60%. TAR.Z was the standard compressed archive format on Unix systems throughout the 1980s and early 1990s, before gzip emerged as a patent-free replacement. The LZW algorithm used by compress) was subject to patent claims by Unisys (holders of the LZW patent through Sperry), which motivated the development of gzip as an unencumbered alternative. One advantage is universal legacy compatibility — TAR.Z files can be extracted on any Unix system, including very old installations where newer compression tools may not be available. The format's historical ubiquity means that decades of archived software, documentation, and system backups exist as TAR.Z files. While TAR.GZ and TAR.XZ have replaced TAR.Z for new archives, the uncompress/zcat tools remain standard on all Unix-like systems, ensuring continued accessibility of legacy archives.
ARJ (Archived by Robert Jung) is a compressed archive format created by Robert K. Jung in 1991 for MS-DOS, which became one of the most popular archiving tools during the early 1990s. The format uses a proprietary compression algorithm based on LZ77 sliding window techniques combined with Huffman coding, offering competitive compression ratios that rivaled or exceeded other DOS-era archivers. ARJ archives support multi-volume spanning across floppy disks, a critical feature in an era when distributing software often meant shipping multiple 1.44 MB diskettes. The format also provides password protection, file attribute and timestamp preservation, archive integrity verification through CRC-32 checksums, and the ability to create self-extracting executables. ARJ saw widespread adoption on bulletin board systems and in corporate environments during the DOS and early Windows period, valued for its balance of compression ratio, speed, and feature set. One advantage was excellent multi-volume support — ARJ handled spanning across floppy disks more reliably than many competitors, making it a preferred choice for software distribution via physical media. The self-extracting archive capability provided another practical strength, enabling recipients to unpack files without needing the ARJ utility installed. While ARJ's usage declined sharply with the rise of ZIP, RAR, and 7Z as internet-based distribution replaced floppy disks, the format remains recognized by modern archivers like 7-Zip for extracting legacy archives.