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Free Zstandard compression GUI utility, open, extract ZST files

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Work with ZSTD fast compressor, opener, extractor utility

Manage ZST files with PeaZip

PeaZip free archiver utility offers full read / write support (compress, open, decompress) for ZST compressed files, through the Open Source tool ZSTD from Facebook's Zstandard project (released under BSD + GPLv2 dual license) to offer the same GUI frontend to create, browse, and extract .zst files under Windows and Linux operating systems.
ZSTD compressor is multithreaded and provides faster than Deflate (ZIP / GZip) compression, even faster than current Brotli implementation, see PeaZip comparative benchmarks page for fastest data compression results.

Work with TAR archives compressed with Zstandard algorithm
Zstandard algorithm is a pure single file (or stream) compressor, and does not provide file archiving features: if multiple files are sent to ZSTD compressor PeaZip will automatically switch to solid mode consolidating all input files / directories to a single TAR archive.
Treating the entore input as a whole usually also allows reach better compression ratio that compressing each input file separately.

ZSTD utility does not support encryption (files of .zst type cannot be password protected) as no encryption primitive is offered by Zstandard algorithm.

extract zstandard compressed files

Compress files with Zstandard algorithm

ZSTD fast data compressor accepts a single file as input, otherwise (to add multiple files and directories) use "TAR before" option to consolidate input in a single TAR package before proceeding with compression stage with Zstandard algorithm.

  • Create ZST files from system's file explorer

    • Use context menu entry PeaZip > Add to archive for archive creation screen, to set compression settings, output destination, and other options.

  • Create ZST files from PeaZip GUI

    • Select files and folders, and use Add button (also in context menu) for archive creation screen

    • Drag and drop files / folders from the system to a PeaZip instance

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How to convert Zstandard files

Archive file conversion procedure using Convert button extracts and then re-pack input archive files into any write-supported format (7z, arc, brotli, pea, tar, zip, zstandard...)

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This utility allows to convert any type supported for reading (ACE, CAB, RAR, TAR, ZIP...) into a new ZST file, as well as to convert existing ZST file into any other write-supported format.

Open Zstandard ZST files

To open ZST file and read its content (a single compresed file in case of plain .zst format, a tar archive opening a tar.zst or .tzst file), open it in PeaZip gui with double click if file extension is associated with the application, or using system context menu "Open as archive" entry, that will attempt to read any user provided file type regardless file associations

Extract ZST files

Decompress ZST files from the system
  • Use context menu entry "Extract..." for extraction screen to set output path and other options

  • Select one or more archives and use context menu entry Extract here or Extract here (to new folder) for quick extraction with no further confirmation

Decompress Zstandard-compressed files within PeaZip free archiver as GUI frontend
  • Extract button shows archive extraction screen providing access to all extraction options (set output path, open output path after extraction, keep or delete original archives, etc)

  • Extract all to... button activates a simplified procedure only asking for output path

  • Simply drag & drop the compressed file from the application to the system to decompress it

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TAR and Zstandard compression
To work on a TAR file compressed with Zsrandard (with .tar.zst or .tzst extension) you will need to uncompress the tar container before using aforementioned methods.
Read more about how to extract archive files and how to extract selected content from archive.

Use Zstandard compression algorithm in 7z format

7-Zip zstd compression plugin

Zstandard faster-than-zip compression is available also for 7Z format, with Tino Reichardt's 7Z plugins for 7-Zip / 7Z.exe (supported by PeaZip, providing Brotli, Lizard, LZ4, LZ5, and Zstd algorithms for 7Z API), selecting Zstd compression method in Advanced tab when 7Z format is selected.

Zst compression / decompression algorithm in .7z containers is also supported on GNU/Linux systems by szcnick/p7zip fork used by PeaZip for Linux.
Read more about how to create 7Z files with ZSTD compression.

Synopsis: Free zstandard file compression utility. How to create zst compressed files with zstd file compressor tool. Compress TAR archives with ZSTD compression utility. Convert zst archives to other formats. How to open zst compressed files. Extract zst files (decompress). How to use PeaZip as free GUI zst compressor, opener and extractor.

Topics: how to compress files with zstdandard, open zst files, decompress zstd compressed files, faster than zip compression algorthm

PeaZip > FAQ > Free Zstandard compression utility, open, extract ZST files


Create, open, extract 7Z files

Open and extract ACE files

Create, open, extract ARC files

Create, open, extract Brotli files

Compress, decompress Bzip2 files

Open and extract CAB files

Compress, decompress GZip files

Open and extract DMG, ISO, UDF disk images

Create, open, extract PAQ, LPAQ, ZPAQ files

PEA: Pack Encrypt Authenticate

Open and extract RAR files

Create, open, extract TAR, TGZ, TBZ files

Create, open, extract WIM disk images

Create, open, extract ZIP files

Create, open, extract ZIPX files

Create, open, extract Zstandard files

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