Page speed is a big factor that is considered when ranking for SEO. Whether you are a designer, blogger or business owner – by using compressed images on your website pages, articles and blog posts, you will create a far better user experience as your web pages will load faster.
Image compressors work by using various algorithms to reduce the file size of your image.
Free Desktop Image Compressor Apps
FILEMinimizer Pictures
This is a free Windows-based app that allows you to reduce your image sizes and photos by up to 98%. Files types that are supported include, JPEG, BMP, GIF, TIFF and PNG.
ImageOptim
An Apple Mac-based app that optimizes your images reducing it’s file size and loading your website faster. The app will find the best compression parameters by removing unncessary comments and color profiles. It supports PNG, JPEG and GIF animations.
“It’s excellent for publishing images on the web (easily shrinks images “Saved for Web” in Photoshop) and also useful for making Mac and iPhone/iPad applications smaller (if you configure Xcode).”
ImageAlpha
This is an excellent app to reduce file sizes of PNG images. It applies a lossy file compression method reducing file sizes of 24-bit PNG files.
Free Web-based Image Compressors
Shrink O’ Matic
Shrink O’Matic is an AIR application to easily (batch) resize (shrink) images. It handles JPGs, GIFs and PNGs.
Kraken
Kraken is a free online image optimizer that uses optimization techniques specific to image format to remove unnecessary bytes from image files. Select the “lossless” option, which means it will optimize the images without changing their look or visual quality.
