Open Source JavaScript File Compression Software

compression is a Node.js middleware for Express applications that enables HTTP response compression, improving the performance of web applications by reducing the size of the response body.

Compressor.js is a lightweight JavaScript library for in-browser image compression that allows developers to reduce file sizes before uploading images to a server, improving performance and user experience. It works by taking an input image (such as from a file input) and resizing or reencoding it on the client side according to developer-specified options like maximum width, height, quality, and MIME type. Because compression happens in the browser, users upload smaller images without sacrificing responsiveness or relying on server resources, which is especially useful for mobile users or limited-bandwidth environments. The library supports modern browsers and automatically handles orientation based on EXIF metadata, ensuring images appear correctly after compression.

UglifyJS is a JavaScript compressor/minifier written in JavaScript. It also contains tools that allow one to automate working with JavaScript code. A parser which produces an abstract syntax tree (AST) from JavaScript code. A code generator which outputs JavaScript code from an AST, also providing the option to get a source map. A compressor (optimizer). it uses the transformer API to optimize an AST into a smaller one. A mangler, reduce names of local variables to (usually) single-letters. A scope analyzer, which is a tool that augments the AST with information about where variables are defined/referenced etc. A tree walker, a simple API allowing you to do something on every node in the AST. A tree transformer, another API intended to transform the tree. All the above utilities and APIs are defined in ~6500 lines of code (except for the effective generation of the source-map, which is handled by the source-map module). Compared to alternatives, UglifyJS is pretty small.

All client-side solution for PC & Browser Firefox to create zip archive and extract zip and rar archive files with API HTML5 file system. == Browser Extensions == Add-on Firefox: http://mzl.la/1Kd7fiD OS requirements - Windows 7 and later are supported, older operating systems are not supported (and do not work). Both x86 and amd64 (x64) binaries are provided for - - Windows. Please note, the ARM version of Windows is not supported for now. == Installation and Activation == 1. Download Extension and install in your Browser Firefox 2. Then: Select View - Sidebar and ZipWeb. Or to active extension use combo keys ctrl-6

BWTC32Key is a program I wrote that compresses data, then optionally encrypts it, and then outputs a Base32768 representation as the final output

PAT is a complete web application that allow to manage files (basic and advanced functions like compression in gz), ftp, and database all in one. Designed to reproduce a Graphical User Interface (GUI) with drop-down and context menu for easy use

A micro library for the creation of mobile applications Android hybrid HTML5 / Java, for compressing files in Zip format directly from the WebView component. 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.

Font-spider is a compress tool for WebFont which can analyze your web-page intelligently to find the fonts out which have been used and then compress them. Font subsetter, our tool is based on HTML and CSS analysis and completely running in local so that. Font converter supports woff2, woff, eot, svg font format generation.

liblzg is a minimal implementation of an LZ77 class compression library. The main characteristic of the library is that the decoding routine is very simple, fast and requires no memory.

The program tHE HTML packer is intended for compression of ready HTML-files before loading them on a WEB-site. For operation of the packed pages it is necessary to have a browser with support of the language JavaScript. In the given moment the program wa