Most of them share their files on zip format. It compress batch of files into one file and also reduce its size. Unziponline is a free web service that will allow you to uncompress many formats of archives and optionally convert them to widely supported ZIP format.
Sometimes you need you uncompress some rare archive format but can’t install a special software this time unziponline help you to unzip files. It unzips 7z, bar, bz2, bzip2, gz, gzip, jar, rar, tar, tbz, tgz, war, xz, z, zar and zip format files.
To unzip files simply go to unziponline website and upload your zip file after some process you will get unzipped files for download. You can also unzip files directly from URLs. You can select 10 files at a time and max size is 200 MB.