14 best open source image optimization projects.

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Displaying 1 to 14 from 14 results

pngquant - Lossy PNG compressor — pngquant command and libimagequant library

pngquant is a PNG compresor that significantly reduces file sizes by converting images to a more efficient 8-bit PNG format with alpha channel (often 60-80% smaller than 24/32-bit PNG files). Compressed images are fully standards-compliant and are supported by all web browsers and operating systems.This is the official pngquant repository. The compression engine is also available as an embeddable library.

png png-compression quantization palette conversion image-optimization imaging-library

ImageOptim - GUI image optimizer for Mac

ImageOptim is a GUI for lossless image optimization tools: PNGOUT, AdvPNG, Pngcrush, OptiPNG, JpegOptim, MozJPEG, jpegtran, Gifsicle and SVGO.To get started, open imageoptim/ImageOptim.xcodeproj. It will automatically download and build all subprojects when run.

gui image-optimization performace accelerator minification imageoptim mac-app imaging-library

Mozjpeg - Improved JPEG encoder

MozJPEG reduces file sizes of JPEG images while retaining quality and compatibility with the vast majority of the world's deployed decoders.MozJPEG is based on libjpeg-turbo. It's compatible with libjpeg API and ABI, and can be used as a drop-in replacement for libjpeg. MozJPEG makes tradeoffs that are intended to benefit Web use cases and focuses solely on improving encoding, so it's best used as part of a Web encoding workflow.

mozjpeg libjpeg jpeg-encoder image-optimization web-performance jpeg imaging-library

image_optim - Optimize images using multiple utilities

Based on ImageOptim.app. Documentation for latest version and master.

image-optimisation image-optimization

essential-image-optimization - Essential Image Optimization - an eBook

Bring up a terminal and type node --version. Node should respond with a version at or above 0.10.x. If you require Node, go to nodejs.org and click on the big green Install button.

images image-processing image-optimization jpeg png gif compression image-compression image optimisation webp mozjpeg

nQuant

nQuant is a .net color quantizer producing high quality 256 color 8 bit PNG images using an algorithm optimized for the highest quality possible.

color-quantization image-optimization png-utility

imgp - :camera_flash: Multi-core batch image resizer and rotator

imgp is a command line image resizer and rotator for JPEG and PNG images. It can resize (or thumbnail) and rotate thousands of images in a go, at lightning speed, while saving significantly on storage. Powered by multiprocessing, an intelligent adaptive algorithm, recursive operations, shell completion scripts, EXIF preservation (and more), imgp is a very flexible utility with well-documented easy to use options.

image-processing image-compression image-manipulation image-optimization image-resize image-rotate multiprocessing standalone command-line terminal

pngquant-photoshop - Photoshop plug-in for saving PNG images with pngquant compression

It provides PNG saving better than Save for Web. Typically creates PNG files 60-70% smaller than 24/32-bit PNG from Save for Web, and unlike 8-bit PNG from Photoshop, always supports semi-transparent alpha channel.Download for Mac OS X and copy pngquant.plugin to /Applications/Adobe Photoshop C*/Plug-ins/.

pngquant photoshop photoshop-plug image-optimization

libimagequant - Palette quantization library that powers pngquant and other PNG optimizers

Small, portable C library for high-quality conversion of RGBA images to 8-bit indexed-color (palette) images. It's powering pngquant2.For Free/Libre Open Source Software it's available under GPL v3 or later with additional copyright notices for older parts of the code.

quantization palette palette-generation minification conversion image-optimization pngquant

php-imageoptim-api - PHP wrapper for ImageOptim API

This library allows you to resize and optimize images using ImageOptim API.ImageOptim offers advanced compression, high-DPI/responsive image mode, and color profile support that are much better than PHP's built-in image resizing functions.

imageoptim-api imageoptim image-optimization image-resizer image-quality dimensions api web-api

enfasten - ⚡️ Automatically make your site faster with optimized responsive images

Enfasten is a tool written in Go which takes in a static site, scales the images down to a number of different sizes, then rewrites all of your HTML to use responsive image tags with srcset attributes. It can also run all of your images through an optimizer like ImageOptim. This makes your static site faster for people to load because their browser can load the best image for their screen size and resolution, and it's backwards compatible with older browsers.I wrote this because on my site I frequently include images which are absurd sizes, such as a 2146x1258 screenshot from a high-DPI display. The user's browser downloads this huge image and promptly resizes it down to fit in my 660px wide blog. This is especially bad when people without high-DPI displays visit my site, but I still want things to look nice on high-DPI displays. The fact that I don't always remember to optimize my images makes this waste even worse.

responsive-images static-site srcset image-optimization