Fontmatrix Font Management Application
Fontmatrix is a free and open source font management application for Linux, macOS, and Windows. It is released under GNU General Public License v2.0.It helps you to manage all your system fonts collection and enable and disable availability of fonts and font families easily using this app. It shows all font chart and font info, you can extract fonts, view truetype tables, comparing fonts glyph by glyph and comes with font playground support. You can also import and export fonts easily.