Unknown

Font Editor

Portable

{app} can be used from a USB stick or similar with no prior installation.

FontForge editing the font "Santana" on Ubuntu 10.10

Mastering FontForge drawing tools

From the main window, double-click on one of the glyph boxes to launch the Glyph Window. <http://designwithfontforge.com/en-US/Using_the_Fontforge_Drawing_Tools.html>

This automatic placement of diacritic marks can be tuned by preferences, found in the ‘accents’ section of FontForge’s preferences menu ‘File > Preferences > Accents’ <http://designwithfontforge.com/en-US/Diacritics_and_Accents.html>

Find Problems: The first tool is called Find Problems, and is found under the Element menu. You must first select one or more glyphs — either from the font view, the outline view, or the metrics view — then open the Find Problems tool. The tool presents you with an assortment of potential problems in eight separate tabs.
<http://designwithfontforge.com/en-US/Making_Sure_Your_Font_Works_Validation.html>

FontForge

Windows

Linux

Fontforge is a free Typeface (font) editor program for Windows, Mac OS X and GNU+Linux  and is localized in several languages.

English

FontStruct

Online

FontStruct is a free font-building tool brought to you by the world’s leading retailer of digital type, FontShop.

BitFontMaker2™

According to the Github page:&quot;Maintenance status: The trufont project is currently discontinued. Although we will happily accept bug fixes, no new features are currently planned.&quot;

TruFont

TruFont is a font-editing application written with Python3, ufoLib, defcon and PyQt5.

sIFR Font Maker Alternatives

FontForge

FontForge Features

FontStruct

FontStruct Features

BitFontMaker2™

BitFontMaker2™ Features

TruFont