- Powerful Free Open Source Software Directory
- Powerful Free Open Source Software For Windows
- Free Software Vs Open Source
This is a free alternative for SPSS, and a pretty mature project which can be used for regression analysis, non-parametric tests, T-tests, cluster analysis and much more. It supports over 1 billion variables. Gretl is a free alternative to Eviews. It can be used for a wide range of econometric analyses, data series and regression. Most of the best open-source software has had years to refine itself, so we've made an effort to look for some more recent tools that have made a splash as well. One of our favourites is the LEGO-building software, stud.io. It's incredibly intuitive and will have you digitally constructing models from your wildest imaginings immediately.
Cinelerra is a free and open-source software for professionally editing videos on Linux platforms. Its features include compositing, motion tracking, rendering, transitions, customizable text, effects, etc. Mailspring is a freemium open-source email client application for Linux, Mac, and Windows computers. It is extensible with.
7-Zip is a file archiver with a high compression ratio.
Download 7-Zip 19.00 (2019-02-21) for Windows:
Link | Type | Windows | Size |
---|---|---|---|
Download | .exe | 32-bit x86 | 1.2 MB |
Download | .exe | 64-bit x64 | 1.4 MB |
Download 7-Zip 20.02 alpha (2020-08-08) for Windows:
Link | Type | Windows | Size |
---|---|---|---|
Download | .exe | 32-bit x86 | 1.2 MB |
Download | .exe | 64-bit x64 | 1.4 MB |
Download | .exe | 64-bit ARM64 | 1.5 MB |
License
7-Zip is free software with open source. The most of the code is under the GNU LGPL license. Some parts of the code are under the BSD 3-clause License. Also there is unRAR license restriction for some parts of the code. Read 7-Zip License information.
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
- High compression ratio in 7z format with LZMA and LZMA2 compression
- Supported formats:
- Packing / unpacking: 7z, XZ, BZIP2, GZIP, TAR, ZIP and WIM
- Unpacking only: AR, ARJ, CAB, CHM, CPIO, CramFS, DMG, EXT, FAT, GPT, HFS, IHEX, ISO, LZH, LZMA, MBR, MSI, NSIS, NTFS, QCOW2, RAR, RPM, SquashFS, UDF, UEFI, VDI, VHD, VMDK, WIM, XAR and Z.
- For ZIP and GZIP formats, 7-Zip provides a compression ratio that is 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 87 languages
7-Zip works in Windows 10 / 8 / 7 / Vista / XP / 2019 / 2016 / 2012 / 2008 / 2003 / 2000.
p7zip - the port of the command line version of 7-Zip to Linux/Posix.
On 7-Zip's SourceForge Page you can find a forum, bug reports, and feature request systems.
Compression ratio
We compared 7-Zip with WinRAR 5.20.
FILE SETS: Mozilla Firefox 34.0.5 for Windows and Google Earth 6.2.2.6613 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, 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.
We have already explained how Microsoft Excel can be used as a basic statistical analysis software. The first step in the process requires turning on the Statistical Analysis feature, after which you can perform linear regression, ANOVA and much more.
Unfortunately, for a more serious analysis users need specialized software such as SPSS, Eviews or Stata. These programs are expensive and not everyone can afford them. Luckily, there are plenty of free alternatives that can be used instead. Here we have created a list of the most popular free software for statistical analysis.
1) The R Project for Statistical Computing
R is by far the most widely used free statistical environment. It can be used for many different types of analysis. It has a large community and numerous packages are developed for it. Learning it will require a bit of programming knowledge, but there are plenty of tutorials and online courses available for that purpose. This is something we definitely recommend you learn, because it is slow-ly becoming the standard in many professional data analytics communities.
2) PSPP
Powerful Free Open Source Software Directory
This is a free alternative for SPSS, and a pretty mature project which can be used for regression analysis, non-parametric tests, T-tests, cluster analysis and much more. It supports over 1 billion variables.
3) Gretl
Gretl is a free alternative to Eviews. It can be used for a wide range of econometric analyses, data series and regression.
4) MicrOsiris
MicrOsiris is a lightweight freeware for performing all sorts of data analysis.
5) Regressit
Powerful Free Open Source Software For Windows
A completely free add-in for Excel, Regressit can be used for multivariate descriptive data analysis and multiple linear regression analysis.
6) MacAnova
Free Software Vs Open Source
MacAnova is developed at the University of Minnesota and can be used for statistical analysis and matrix algebra.
7) GNU Octave
This tool presents an excellent alternative to Matlab. Not only can it be used for multiple numerical computations, it also has great data visualization capabilities.
8) Dmelt
This tool is a successor to a couple of other statistical environments. It can be used for mathematical analysis, visualization and much more.