Work with 7Zarchives, compression andextraction Manage 7z files withPeaZip
PeaZip provide full read /write support for 7z format(create, open and extract 7z files) both for 7Z archivesandXZ files,through the Open Source components from 7-Zip and p7zip projects(releasedunder LGPL license, as PeaZip), and offers the same GUIfrontend tocreate,browse, and extract 7Z archives under Windows, macOS, and Linuxoperating systems.
7Z format featureshighcompression ratio (superior to ZIP and in some cases RAR format) usingby default LZMA2compression algorithm - optionally LZMA, PPMd, BZIP2 and Deflate areavailable as alternative compression algorithms - and built in strongcompression based on AES256.7Z compression andextraction performances
BZIP2, LMZA, LZMA algorithms provides multi-threadedcompression, taking advantage of modern multi-core,multi-thraded CPUs, and BZip2 also provided multi-threaded decompressionimproving extraction speed on muticore architrectures.
Extraction, however, is significantly faster than compression for mostalgorithms, and is consequently more likely to be limited by disk speedrather than CPU speed.
RAM speed is especially critical when using highest compressionsettings, as largest statistical models and widest data samples arekept in memory.
For more information and comparative test results see the File Compression Benchmarkssection. Create7Z files
To addfiles /folders to a new archive orinto an existing .7z file
7z compressionoptions Fromarchive creation screen it is also possible to apply AES256 encryption topassword-protect the archive, and to splitfile - createmultiple volumes smaller than desiredmaximum output size. From "Advanced" tab, it is possible tofurther fine-tune compression settings; faster-than-zip compression isposible with TinoReichardt's plugins for Brotli, FLZMA2, Lizard, LZ4, LZ5, and Zstdalgorithms,supported by PeaZip, selecting one of those compression methods inAdvanced tab. In this wayhowever the resulting archives will not be compatible with 7z archivemanagers not supporting those new compression algorithms, as notablyvanilla 7-Zip, so using BZip2, LMZA, LZMA2 or PPMd is recommended ifyou intend to preserve interoperability with other archiver utilities. Create selfextracting 7z archives
7Z archives can be created as self-extracting,so the recipient will need to simply doubleclick the archive/executableto extract it, without the need of dedicated extraction utility todecompress the content. Use solidcompression when creating 7z archives
Solidcompression option can help to reduce size of archives containing filetypes difficultto compress (such as media files), because with an appropriateblock size duplicate or very similar files / data sections can beefficiently archived without repetition. Learn more about how tocreate 7z, tar, zip archive files
Updateexisting 7Z archives Easiest way toupdate an existing archive is opening it in PeaZip anddragging files/folders to it, read more about how to update existingarchives. Press cancel or "Delete from archive"button to remove items already in archive, view also: add or delete data fromarchive. Convertarchives to 7Z format
Convertingexisting archives from / to.7z format is possible using Convert button,which extracts and then re-pack input archive files, view faq about how to convert 7z, rar, zip files
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| Open 7Zfiles Open 7z files inPeaZip with double click, or context menu "Open as archive" entry,thatwill attempt to read any user provided file type regardless fileextension associations. See also how to openarchive files. Extract 7Zfiles Decompress7z files from the system -
Contextmenu PeaZip > Extract... shows archiveextraction screen, to setoutput path, password (if needed) and other options -
Select oneor more archives and usecontextmenu Extract here or Extracthere (to new folder) for quick extraction with no furtherconfirmation Decompress 7z archives from PeaZipapplication -
Extractbutton shows archiveextraction screen providing access to all decompression options -
Extractall to... button startssimplifiedunpacking procedure, only asking for output path - As alternative, simply drag & dropfromtheapplication to the system the items you want to extract
How toextract multi volume 7z archives Tobrowse or extract a spanned (split) 7Z file, save all the parts in samedirectory, open the first volume (.7Z.001 extension). Read moreabout archivefiles extraction and how to extractselected files from archive
Workwith encrypted 7Z files (AES256)
7z was designed ground up to natively support robust AES basedencryption, so it is possible to create secure password protectedarchives in this format How to createencrypted 7z files
To create or extractan encrypted.7z file, enterthe password from the padlock icon in status bar(in the file/archive browser) or below output addressfield (in extraction or archiving screens), alternatively click Tools>Enterpassword / keyfile in main menu, or F9 accelerator key.
Browsingencrypted 7z files In encrypted7z archives(AES256 encryption algorithm) password protected items aremarked by * sign afterfilename. How to hidecontent of 7z archives
7Z encryption supports hiding names of files inside the archivechecking "Encrypt also filenames" option in password dialog. Read more about how to create encryptedarchives, how to (optionally) encryptnames of files in archive to hide archive content until password isprovided, and how to extractencrypted archives |
Synopsis: How to workwith PeaZip 7Z files archiving and extraction utility for Linux, macOS,and Windows. Free software tocreate, open, extract 7z format. How to compress decompress convertencrypt 7-Zip archives.Extract selected files from a 7z archive. How to edit and updateexisting 7z archives. Manage encrypted 7z files. Convert 7z archives toother types, eg 7z to zip.
Topics: create 7zarchives, update existing 7z archives, convert archives from / to 7zformat, open 7z files, extract 7z archives, manage encrypted 7z files
PeaZip > FAQ >Free 7Z files software: create, open, extract 7-Zip archives
WORK WITHSUPPORTEDFILE TYPES 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 Openand extract RAR files Create, open, extractTAR, TGZ, TBZ files
Create, open, extract WIM disk images
Create, open, extract ZIP files Create, open, extract ZIPX files
Create, open, extractZstandard files |
