FontRapid is a free Sketch plugin, helps designers create professional OpenType fonts with ease directly in Sketch app. The output font can be used for print, web and mobile, and sold to anyone with no limit (both free and commercial use).
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.
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.