Adobe XD is a tool that eases the creation of user experiences for the web and mobile applications. It is a single app, coming with a solid set of features, to design, prototype and share. It is built to facilitate the work of today's UX designers.
Sketch + InVision is a native integration between Sketch and InVision so designers can design, prototype, and gather feedback in one place.
Complete guide to designing a site using a collaborative and powerful design system.
Dotgrid is a simple vector glyph illustration tool, that works by adding control points and drawing different line-types between them. The tool was created to design logos and glyphs for various personal projects, and made available as a free and open source application.
Exports to SVG, PNG and DOT.