tinypng-loader-cli

Introduction

PNG is useful because it's the only widely supported format that can store partially transparent images. When app moves to production stage, image compression is essential. However, according to my experience using such as gulp-image, imagemin-webpack, most of them relied on optipng plugin. This compression algorithm only help reduce around 5%-10%. tinypng.com uses smart lossy compression techniques to reduce the file size of PNG/JP(E)G files with around 60%-70% file size reduction.

The tinypng-loader-cli is derived from my tinypng-loader.

Compatible Image

• PNG
• JP(E)G

Get Started

npm install tinypng-loader-cli -g

How to use

Open your command line or shell and key in,

tinypng-loader-cli -s <source of your images> -d <destination of your images>

  Usage: index [options]

  Options:

    -h, --help            output usage information
    -V, --version         output the version number
    -s, --source <value>  source of images required to process
    -d, --dest <value>    destination of image output

Example

Assume your directory looks like the followings:

c:/demo              # project name
├── dist/            # destination of your outputs
└── images/          # target images you want to optimize
    ├── 1.png
    ├── 2.jpg
    ├── 3.jpg

open your sheel from demo and enter your command:

tinypng-loader-cli -s images/**/* -d dist

OR using absolute path,

tinypng-loader-cli -s c:/demo/images/**/* -d c:/demo/dist

it takes a minutes and your will see the progress in command.

Once finished:

c:/demo              # project name
├── dist/            # destination of your outputs
    ├── 1.png
    ├── 2.jpg
    ├── 3.jpg
└── images/          # target images you want to optimize
    ├── 1.png
    ├── 2.jpg
    ├── 3.jpg

Screenshot

Here is a normal case if you use this library correctly