gz-heatmap v0.0.1

gz-heatmap

Produce a heatmap of gzip files to better understand how gzip compresses your code.

Usage

Website

Go to https://andrewiggins.github.io/gz-heatmap/ and enter a URL or upload a file to see how GZip compresses your file. Your file is compressed using the pako library with memLevel set to 9 (highest compression).

CLI

Install this npm package to run gz-heatmap on a file. It'll compress the given text file using NodeJS's bundled zlib and output a local HTML file to view how gzip compresses your file.

NPM package

If you'd like to build your UI, you can import { gzinflate } from "gz-heatmap"; to inflate a gzip file and get back metadata describing how gzip has compressed your file.

Acknowledgements

• gzthermal This repository is basically a JS implementation of wicked-cool gzthermal tool. I wanted to add some nifty interactive features gzthermal so I re-implemented it in JavaScript to add them.
• gzthermal-web How I originally discovered the gzthermal tool.
• tiny-inflate The core inflate algorithm is based on a fork of the tiny-inflate JS implementation.
• fflate Another JS inflate implementation I looked at to understand how GZip works