7-Zip 9.33 Alpha

 7-Zip

7-Zip is a open source file archiver with a high compression ratio. The program supports 7z, XZ, BZIP2, GZIP, TAR, ZIP, WIM, ARJ, CAB, CHM, CPIO, CramFS, DEB, DMG, FAT, HFS, ISO, LZH, LZMA, MBR, MSI, NSIS, NTFS, RAR, RPM, SquashFS, UDF, VHD, WIM, XAR, Z. Most of the source code is under the GNU LGPL license. The unRAR code is under a mixed license: GNU LGPL + unRAR restrictions. Check license information here: 7-Zip license.

You can use 7-Zip on any computer, including a computer in a commercial organization. You don't need to register or pay for 7-Zip.

The main features of 7-Zip are:

  • High compression ratio in new 7z format with LZMA compression
  • Compression ratio for ZIP and GZIP formats: 2-10 % better than the ratio provided by PKZip and WinZip
  • Strong AES-256 encryption in 7z and ZIP formats
  • Self-extracting capability for 7z format
  • Integration with Windows Shell
  • Powerful File Manager
  • Powerful command line version
  • Plugin for FAR Manager
  • Localizations for 74 languages

What's new after 7-Zip 9.32 Alpha:

  • 7-Zip now can show icons for 7-Zip items in Explorer's context menu.
  • "Add to archive" dialog box:
  • new options in "Path Mode"
  • new option "Delete files after compression"
  • new "NTFS" options for WIM and TAR formats:
  • Store symbolic links
  • Store hard links
  • Store alternate data streams
  • Store file security
  • "Extract" dialog box:
  • new optional field to set output folder name
  • new option "Eliminate duplication of root folder"
  • new option "Absolute pathnames" in "Path Mode".
  • new option "Restore file security" (that works for WIM archives only)
  • 7-Zip File Manager:
  • new "File / Link" dialog box in to create symbolic links and hard links.
  • Command line version:
  • new -spd switch to Disable wildcard matching for file names
  • new -spe switch to Eliminate duplication of root folder for extract archive command
  • new -snh switch to store hard links as links (WIM and TAR formats only)
  • new -snl switch to store symbolic links as links (WIM and TAR formats only)
  • NSIS support was improved.
  • The problem was fixed:
  • The command "extract to *" with multiple archives could use same output folder, if archives are placed inside PE (EXE) file.
  • The BUG of 9.31-9.32 was fixed:
  • Command line version for test and extract commands returned the value 0 as exit code, if it couldn't open archive.
  • The BUG was fixed:
  • 7-Zip could not create archives with anti-items for any archive type, except of 7z type
  • Some bugs were fixed.
  • New localization: Mongolian (script).

Download: 7-Zip 9.33 Alpha | 7-Zip 64-bit | 1.3 MB (Open Source)
Download: 7-Zip Theme Manager 2.1
View: 7-Zip Website | Announcement

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32 Comments

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soldier1st said,

Once i heard of 7zip, i stopped using winrar.

Same here and I don't give a rats patooch what it looks like either!

Don't usually use beta's let alone alpha's at all, but this thing seems to work just perfectly and has since the last stable release.

Andre S. said,
Glad to see this is still maintained! My archive manager of choice for many years now.

As is mine and those that i help.

I'm curious about the development process of 7-zip. As stated above by TCLN Ryster, it has been ~4 years since the last stable release. Why hasn't there been a stable release in such a long time?

I asked this on their forum and got the usual "why not use the alphas!!!", when even the author says NOT to use them if you require and/or use 7zip in production environments, Also asked if he could label one of the older alphas as stable, but nope

a7omic said,
I'm curious about the development process of 7-zip. As stated above by TCLN Ryster, it has been ~4 years since the last stable release. Why hasn't there been a stable release in such a long time?

Actually I had read a while ago that development of 7-zip had currently been on halt as the developer has not been able to dedicate the necessary time to it. So I was surprised actually to read this news.

As for the Alpha/Beta debate, in all honesty these releases should be called Beta at best and he should've labeled quite a few builds as stable by now but maybe he doesn't work in environments where these labels make all the difference even if there really is no other measure of the actual quality of the software used.

NyaR said,
Still no RAR5. Use Bandizip and extract ALL the archives.

I still don't get why people still use the rar format. It's a proprietary format, sides there are many other formats that should fill the needs of users.

.zip is the standard because every grandmother has winzip or built in .zip support. However .zip is not the best. People try lots of different things to save space and sometimes, in some situations, .rar5 works the best for them. I, as the consumer of such an archive, cannot complain about the creators choice of compression. Best I can do is use a software that handles everything.

In 5 months time, it'll have been 4 years since they last released a stable version of this software (9.20). Why should I care anymore?

Though labelled as alphas, I haven't had any issue using 7-zip to compress or decompress files. Don't use the more extravagant features but as a basic archive manager on windows 8.1 it has never failed me.

Same here, I have been using the "Alphas" since they first started coming out just as I would a stable release. No problems whatsoever. But as Sadelwo said I only use the basic features.

As an IT technician, and software packager for a large UK manufacturer, I'd be strung up, have my balls coated with nectar, and have a beehive kicked over next to me if ever entertained the slightest possibility of rolling out software labelled as Alpha, or Beta to our 3000+ PCs and Laptops. Just saying that even though you might consider them stable and reliable enough for your personal use, others steer well clear of software with the Alpha or Beta tag.

TCLN Ryster said,
As an IT technician, and software packager for a large UK manufacturer, I'd be strung up, have my balls coated with nectar, and have a beehive kicked over next to me if ever entertained the slightest possibility of rolling out software labelled as Alpha, or Beta to our 3000+ PCs and Laptops. Just saying that even though you might consider them stable and reliable enough for your personal use, others steer well clear of software with the Alpha or Beta tag.

I also stear clear of beta and alpha tagged software, especially on production/mission critical pc's. 9.20 is stable and thats what i put on users pc's.

Sadelwo said,
Though labelled as alphas, I haven't had any issue using 7-zip to compress or decompress files. Don't use the more extravagant features but as a basic archive manager on windows 8.1 it has never failed me.

You may not have issues, but other users may not be as lucky. I play it safe and stick to 9.20. It does all i need and my users as well.

Max Norris said,
*Sigh* Still no RAR5 support.

RAR5 support would require a licensing fee to RarLabs. That's why it isn't there.

Somnus said,
RAR5 support would require a licensing fee to RarLabs. That's why it isn't there.

They provide source for the extractor, complete documentation of the format, binaries for lots of OS's, even a DLL they can use inside other programs. In the DLL's readme... "The unrar.dll library may be used in any software to handle RAR archives without limitations free of charge."

Douglas_C said,
And still channeling Windows 9x design philosophies.

If you want to change the "channeling Windows 9x design philosophy" then you could fork 7zip and make it non win9x like as you call it. imo the current "design philosophy" is acceptable.

Douglas_C said,
And still channeling Windows 9x design philosophies.

You don't even see the UI that much, so it shouldn't really matter what it looks like.

soldier1st said,

If you want to change the "channeling Windows 9x design philosophy" then you could fork 7zip and make it non win9x like as you call it. imo the current "design philosophy" is acceptable.

Ah, the typical "well if it doesn't work why don't YOU change it" open source argument, not taking into account that I can barely code my way out of a wet paper bag.

In any case, I use PeaZip instead, which also has revolutionary features "Extract Contents of Archive To New Folder" and "Show Extracted Files In Explorer" that 7zip lacks, along with a UI and icons that resemble something made in a year starting with the number 2.