Compress files and folder in zip format in WebView Android
...You can compress individual files and folders by adding the interface DroidZip in JavaScript and object ZipHTML5Hybrid directly to the WebView component of Android. For the use of interface in Java WebView you need to include in the HTML file the famous JavaScript library JSZip MIT license.
jShrinker is written in Java and can de/compress 7zip*, zip, bzip2, tar, lzma, rar, and gzip formats. It aims to be cross-platform and to provide an easy-to-use interface. It will include these features: batch decompression. *Decompress only