colourco.de
Color change
Hue: Move around the mouse or "ctrl+←+→"
Brightness: Move the mouse up or down or "Ctrl +↑+↓"
Saturation: "Ctrl + Shift +↑+↓"
Mouse click on the lock color, click on the "Trash" icon to remove colors
In addition, there are some good color schemes, their own slowly experience Oh!
I would like to have a lot of users have used tinyjpg and tinypng, are used to compress the image online tools, but today to share the Optimizilla small series think more easy to use, high compression rate, compressed quality is still good, the following look at the characteristics of the introduction.
Optimizilla
Optimizilla Features
The compression rate is 40%-70% under the premise of the best picture quality
Supports multiple files at the same time compression, jpg/png can exist simultaneously
Can customize the picture to compress the image
Instant Contrast preview Effect diagram
Test:
The use of the method is very simple, directly to compress the image photos to the compressed area, and then click the "Download" or "merge" button to download it.