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نرم افزار 7zip برنامه ای با سورس باز و کاملا رایگان هستش که از 30تا 70 درصد بهتر میتونه فایل های شما را فشرده کنه . این نرم افزار فایل ها را با فرمت 7z فشرده میکنه البته از اکثر فرمت های دیگر هم پشتیبانی میکنه
برای دانلود به سایت سازنده مراجعه کنید :
Download 7-Zip 4.57 (2007-12-06) for Windows:
برخی از مشخصات نرم افزار به گفته سایت سازنده نرم افزار را در اینجا مشاهده میک نید :
The main features of 7-Zip
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High compression ratio in new 7z format with LZMA compression
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Supported formats:
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Packing / unpacking: 7z, ZIP, GZIP, BZIP2 and TAR
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Unpacking only: RAR, CAB, ISO, ARJ, LZH, CHM, MSI, WIM, Z, CPIO, RPM, DEB and NSIS
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For ZIP and GZIP formats, 7-Zip provides a compression ratio that is 2-10 % better than the ratio provided by PKZip and WinZip
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Strong AES-256 encryption in 7z and ZIP formats
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Self-extracting capability for 7z format
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Integration with Windows Shell
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Powerful File Manager
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Powerful command line version
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Plugin for FAR Manager
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Localizations for 69 languages
7-Zip works in Windows 98/ME/NT/2000/XP/Vista. There is a port of the command line version to Linux/Unix.
On 7-Zip's Source Forge Page you can find a forum, bug reports, and feature request systems.
Compression ratio
We compared 7-Zip with some of the leading archivers.
FILE SETS: Mozilla Firefox 1.0.7 for Windows and Google Earth 3.0.0616 for Windows after full installation.
| Archiver | Mozilla Firefox | Google Earth |
161 files
15,684,168 bytes | 115 files
23,530,652 bytes |
| Compressed size | Ratio | Compressed size | Ratio |
| 7-Zip 4.23 (7z format) |
4621135 |
100% |
6109183 |
100% |
| WinRAR 3.50 |
5021556 |
109% |
6824892 |
112% |
| CABARC 5.1 |
5131393 |
111% |
7434325 |
122% |
| WinZip 10.0 beta (maximum-PPMd) |
5277118 |
114% |
8200708 |
134% |
| 7-Zip 4.23 (zip format) |
6222627 |
135% |
8909446 |
146% |
| WinZip 10.0 beta (maximum-portable) |
6448666 |
140% |
9153898 |
150% |
Compression ratio results are very dependent upon the data used for the tests. Usually, 7-Zip compresses to 7z format 30-70% better than to zip format. And 7-Zip compresses to zip format 2-10% better than most of other zip compatible programs.
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