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7z files, it is also able to open similar file formats. 7z format is exclusive to 7-zip, and though it is able to pack and unpack archives in. 7-zip has enjoyed tremendous popularity among other compression software because it is totally free, and while WinZIP and WinRAR both have free trial editions 7-zip is one of the leading compression software in the market that is totally free. First developed in 1999, 7-zip was later awarded the 2007 SourceForge community awards under the categories Technical Design and Best Project it is a free program under the auspices of the GNU Lesser General Public License or LGPL. rar, among others, even including limited access to the contents of. 7z archive files (although it can open other compressed archives such as. Pros: Solid performance potential to produce more efficient zipping.Ĭons: Unspectacular overall slower than some rivals.Ĭonclusions: As good if not better than any other free product and certainly worth trying before splashing the cash.7-zip is a compression and extraction software similar to WinZIP and WinRAR, that can read from and write to. But whether any of these limitations are enough to be a problem given it's a free application depends on how often you'll be using it. It's decent but not great in every category: for example, its menu system and integration with Windows Explorer works well enough but aren't particularly smooth or intuitive. Indeed, that's largely the story of 7-Zip. It's not as lightning-fast as some of the commercial options however. The program is quick enough to zip files: on a decent-specification Windows 7 machine it managed to process around 180 Megabytes in a minute. In practice its zipped files are indeed consistently smaller, though by how much is very variable and dependent on the type of file concerned. The main selling-point of the application is a custom 7z format which is billed as creating files up to 40 percent smaller than those of more common zipping techniques. It's also capable of working with a wide variety of formats, including a couple that are mainly used on Linux computers, making this a handy utility for those with a dual-boot set-up.

There's certainly nothing to complain about with the software: it works reliably and doesn't cause any performance problems or crashes. 7-Zip certainly holds its own but it struggles to stand out on anything but price.

As faster internet connections and bigger hard drives mean files sizes continue to increase, the world of zipping utilities is a crowded market.