7zip Free Download 2020 (Trial Version)

What is 7-Zip?

7-Zip is a free and open-source file archiver, a utility used to place groups of files within compressed containers known as “archives”. This tool is developed by Igor Pavlov and it was first released in 1999. This tool uses its own 7z archive format, but can read and write several other archive formats. Thí tool can be used from a command-line interface as the command p7zip, or through a graphical user interface that also features shell integration. Most of the 7-Zip source code is under the GNU LGPL license; the unRAR code, although, is under the GNU LGPL with an “unRAR restriction”, which states that developers are not permitted to use the code to reverse-engineer the RAR compression algorithm.

Is 7 zip safe? Yes, it’s safe.

7zip Download 2020

Download 7-Zip 19.02 for Windows 7/8/10

Download 7zip for mac: you visit here

How to install 7-Zip

Step 1: After you download, you have 7-Zip.exe file. You click 7-Zip.exe to install it

install 7-zip

Step 2: You click “Install

7-zip install

Done.

How to use 7-Zip to unzip files

Step 1: You choose the file you want to unzip/extract.

Step 2: You right-click the file.

Step 3: You choose 7-Zip => Extract to

use 7 zip to extract Office 2019

How to use 7-Zip to compress files

Step 1: You choose the file you want to compress. For example, I select the file “download.txt”

Step 2: You right-click the file.

Step 3: You choose 7-Zip

  • Then you choose to Add to ” download.7z” if you want to compress the file to .7z file.
  • Then you choose to Add to ” download.zip” if you want to compress the file to .zip file.

How to use 7-Zip to compress files

The main features of 7-Zip

  1. It has high compression ratio in 7z format with LZMA2 and LZMA2 compression
  2. It is supported formats:
    • Packing/unpacking: 7z, BZIP2, XZ, GZIP, TAR, ZIP and WIM
    • Unpacking only: AR, CAB, CHM, ARJ, CPIO, CramFS, DMG, EXT, FAT, GPT, HFS, IHEX, ISO, LZH, LZMA, MBR, MSI, NSIS, NTFS, RPM, QCOW2, RAR, SquashFS, UDF, UEFI, VDI, VHD, VMDK, WIM, XAR and Z.
  3. For GZIP and ZIP formats, 7-Zip provides a compression ratio that is 2-10 % better than the ratio provided by PKZip and WinZip
  4. Strong AES-256 encryption in 7z and ZIP formats
  5. Self-extracting capability for 7z format
  6. Integration with Windows Shell
  7. Powerful File Manager
  8. Powerful command line version
  9. Plugin for FAR Manager
  10. Localizations for 87 languages

7-Zip works in Windows 2000 / 2003 / 2008 / 2012 / 2016 / XP / Vista / 7 / 8 / 10.

Compression ratio

We compared 7-Zip with WinRAR 5.20.

FILE SETS: Google Earth 6.2.2.6613 for Windows and Mozilla Firefox 34.0.5 for Windows.

Archiver Mozilla Firefox Google Earth
65 files
85 280 391 bytes
483 files
110 700 519 bytes
Compressed size Ratio Compressed size Ratio
7-Zip 9.35
-mx
39 357 375 100% 15 964 369 100%
WinRAR 5.20
-m5 -s -ma5 -md128m
41 789 543 106% 17 035 432 107%

Compression ratio results are very dependent upon the data used for the tests. Usually, this tool compresses to 7z format 30-70% better than to zip format. And this tool compresses to zip format 2-10% better than most of the other zip compatible programs.

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