Pixelmator - Pixelmator is an image-editing application for Mac and iPad.

GuideGuide - GuideGuide is the Photoshop and Illustrator panel that makes working with guides.

Marsy - Free online PSD file inspector for frontend developers

Canva - Canva is a graphic-design platform with a drag-and-drop interface to create print or visual content while providing templates, images, and fonts. Canva makes graphic design more straightforward and accessible regardless of skill level.

avocode - Centralize design collaboration, version control, prototyping, feedback, and developer hand-off with Avocode. Work on any design, anywhere, with anyone. Sign up free 👉 https://avocode.com/.

easel.ly - Create and share visual ideas online. vhemes are visual themes. Drag and drop a vheme onto your canvas for easy creation of your visual idea!