7 Super Practical compression artifact recommended

First, Jepgmini

It not only allows you to compress the picture as much as possible, but also to keep the quality of the image, by Jpegmini compression, you can reduce the photo file to 80% (more than 8 million pixels). This is a pretty impressive number because the commonly used. jpg files are already compressed files. More attractive to use is that the quality of the photos can hardly see any damage, the file resolution will not be small, light with the naked eye and can not distinguish between what is different.

Website address: Jpegmini, while supporting the Mac and Windows platform.

Second, Pngoo

Windows GUI Bulk Conversion tool.

　　Third, Imagealpha

The GUI for Mac OS X pngquant and other tools, there are four compression modes to choose from, and you can adjust the color mode.

The only regret is that the software does not support bulk compression.

　Four, Pngyu

Mac OS X and Windows under the GUI provide bulk processing capabilities.

This software can be divided into minutes to solve a large number of image compression problems, seconds to kill the front siege Lions ~

V. Lossless Photo Squeezer

Lossless Photo Squeezer specializes in optimizing picture sizes in formats such as Png,jpeg and GIF. More specifically, lossless Photo Squeezer supports the import of an entire directory (including subdirectories), and the image output can be returned to the original directory structure. It is this unique feature that you do not need to spend extra time to rearrange those optimized photos.

There are three modes: Mass complete lossless mode (png,jpg,gif), minor quality damage mode (JPG); PNG 8-bit mode.

The mass completely lossless mode (Png,jpg,gif) will save space by 20, but keep the original resolution, the quality completely non-destructive.

The quality of a slightly impaired mode (JPG) will save space by 50, with a slight loss of quality.

PNG 8-bit mode converts the PNG 24 color to PNG 256 color, saving space 60%.

　VI. tinypng

Pngquant online version, wall crack recommended! A single batch can compress up to 20 images of JPG or PNG no more than 5M, and now he is inseparable from the introduction of this website to the front end colleagues.

　　Seven, Kraken.io

Kraken is also an online compression site, while customizable compression parameters.

But the website loading speed is slow, often encounter not open the situation O (╯-╰) o