2013
2012
TinyPNG – Compress PNG images while preserving alpha transparency
by srcmax & 2 others
Advanced lossy compression for PNG images that preserves full alpha transparency.
TinyPNG – Compress PNG images while preserving alpha transparency
by Spone & 2 others
Advanced lossy compression for PNG images that preserves full alpha transparency.
2011
OptiPNG Home Page
by srcmax & 4 others
OptiPNG is a PNG optimizer that recompresses image files to a smaller size, without losing any information. This program also converts external formats (BMP, GIF, PNM and TIFF) to optimized PNG, and performs PNG integrity checks and corrections.
If you wish to learn how PNG optimization is done, or to know about other similar tools, read the PNG-Tech article A guide to PNG optimization.
Yahoo! Smush.it™
by srcmax & 4 others
Smush.it uses optimization techniques specific to image format to remove unnecessary bytes from image files. It is a "lossless" tool, which means it optimizes the images without changing their look or visual quality. After Smush.it runs on a web page it reports how many bytes would be saved by optimizing the page's images and provides a downloadable zip file with the minimized image files.
2010
2009
Online Image Optimizer: Optimize your GIFS, JPGS, and PNGS online.
by cascamorto & 3 others
Image Optimizer lets you easily optimize your gifs, animated gifs, jpgs, and pngs, so they load as fast as possible on your site. Furthermore, you can easily convert from one image type to another.
2008
Performance web » Archive du blog » Optimisation JPEG
by camel
Je vous avais rapidement parlé de pngcrush pour optimiser les images PNG, sans aucune perte de qualité. Stoyan Stefanov nous propose jpegtrans dans sa dernière présentation sur l’optimisation des images.
Le principe est le même : un petit outil en ligne de commande qui optimise l’image sans aucune perte de qualité. Celui ci ne touche donc pas à la compression de l’image elle-même, mais retire toutes les méta-données embarquées dans le fichier.
1
(19 marks)
