free rar opener, zip file archiver utility


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PeaZip is a free cross-platform file archiver utility that provides an unified portable GUI for many Open Source technologies like 7-Zip, FreeArc, PAQ, UPX... free alternative to WinRar, WinZip and similar proprietary software.
- Create 7Z, ARC, BZ2, GZ, *PAQ, PEA, QUAD/BALZ, TAR, UPX, WIM, XZ, ZIP files
- Open and extract ACE, ARJ, CAB, DMG, ISO, LHA, RAR, UDF, ZIPX files and more,
over 180 archive types supported
Features of PeaZip includes:
archives opener and extractor, batch creation and extraction of multiple archives at once, convert files, create self-extracting archives, split and join files, strong encryption with two factor authentication, encrypted password manager, secure deletion, find duplicate files, calculate hash and checksum, export job definition as script.

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TAR format features / TGZ, TBZ, TXZ files

TAR extension

TAR is a popular archiving format, mainstream for data backup and distribution purpose on Unix and Unix-like systems, as BSD, Linux and derivates. In use since early Unix versions, predating integrated archiving and compression formats like zip and rar, it was later standardized by POSIX-1.1988 and POSIX.1-2001. Tar packages are sometimes referred as "tarballs". "Tarbomb" refers to a tar package purposely built to spam extraction directory with a large number of files, effect that can be avoided by moders archivers simply employing "extract to new folder" option.

TAR file format doesn't feature native data compression, so TAR archives are often compressed with an external utility like, but not only, GZip, BZip2, XZ (using 7-Zip / p7zip LZMA / LZMA2 compression algorithms), and similar tools to reduce archive's size, i.e. for more compact backup, or smaller software distribution package.
Resulting compressed files can be found named with single extension, e.g. TGZ, TBZ, TXZ, or with double file extension, e.g. TAR.GZ, TAR.BZ2, TAR.XZ.
Adding items to a tarball before compression stage is quivalent to using solid compression, which can be beneficial for optimizing output size.
Similarly, TAR also does not natively support cryptography, but it is possible to compress the TAR package with a compression format providing file encryption features such as zip, 7z, arc, pea.

tar format features

When it is recommended to use TAR format: it is a good choice for distributing data on Linux and other Unix-like systems, combining it with .gz / .bz2 / .xz compression to save bandwidth if relevant for the intended use.


PeaZip fully support creation and extraction of TAR files on Windows and Linux systems.

what is tar file type

what are tar archives

Read more about .tar extension: TARuntar package specifications on GNU software directory, TAR file format.tar archive extension Wikipedia entry, GZipGzip tool and BZip2bzip compressor compressors' official domains.




SPEED tar archiving

Extremely fast: archiving to TAR file is equivalent - in speed - of merging files, faster than raw file copy as the process avoids overhead of creating a new  filesystem entry for each file. If compression is applied in the pipeline of the job, it will be likely the speed performance limitating factor.

COMPRESSION RATIO tgz tbz archive

Tar type is not meant to provide compression, rely on external compressors in pipeline (tar.gz,, tar.xz) from which depends the results in terms of compression ratio.


Tar standard is meant to provide only archiving of data and metadata. Other features are delegated, by specification's design, to external programs pipelined to Tar command.





FAQ > Archive file types > .tar extension

Topics about features of tar archives and related formats, characteristics, advantages and disadvantages compared to other archival types
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