Adobe Photoshop - Adobe Photoshop is a webtop application for editing images and photos online.
AngryTools Online Gradient Generator - Angrytools - Online CSS Gradient Generater interface to generate cross browser CSS gradient code as well as Android gradient code. generator produce linear or radial gradients that can be used in your web page design or android apps.
Sketch - Professional digital design for Mac.
Gradient Hunt - Curated collection of beautiful gradients, updated daily
Adobe Illustrator - Adobe Illustrator is a vector graphics editor.
Eggradients - Ready to use gradient background colors. ✓ Cool Gradients are prepared according to the latest design trends. And it is served in the form of eggs. ✓ With hex and CSS codes.