Vector Graphics
Birdfont
Font editor
LibreOffice Draw
Graphics editor part of the LibreOffice productivity suite
Evince
Document viewer for popular document formats
Inkscape
Vector Graphics Editor
Karbon
Scalable Graphics
Pencil2D
Create traditional hand-drawn animation using both bitmap and vector graphics
QElectroTech
Edit electrical diagrams.
Synfig Studio
Create and edit 2D animations and compositions