DejaVu Fonts
- An open source font project based on Bitstream's vera fonts.
FIGlet
- A program for making large letters out of ordinary text; has font examples and a font database.
FontForge
- An outline font editor. The user interface has been localized for: (English), French, German, Greek, Italian, Japanese, Polish, Simplified Chinese, and Vietnamese. Formerly called PfaEdit.
Fontconfig
- A library for font customization and configuration.
Fontmatrix
- A Linux font manager for both the home user and design professional. This software has individual user accounts, which allows each user to activate different fonts on a per-project basis.
Gentium - A Typeface for the Nations
- A typeface family designed for diverse ethnic groups who use the Latin script to produce readable, high-quality publications. Support for a wide range of Latin-based alphabets; includes glyphs that correspond to all the Latin ranges of Unicode. Licensed under the SIL Open Font License, a Free copyleft license for fonts.
KhmerOS - Khmer Software Initiative
- The purpose of the The KhmerOS Project is to ensure that all Cambodians have access to computers in their own language (Khmer); unicode font information, downloads of software in the Khmer language, forums, support, and blogs are available on this site.
Liberation Fonts
- Free replacement fonts for Arial/Helvetica, Courier, and Times Roman.
Linux Libertine Open Fonts Project
- An open source, GPL'd font project that produces fonts in TrueType Format; site available in German and English.
Linux.com Article - "A Font Primer for Linux"
- An article about the different types of fonts (TrueType, OpenType, FreeType, Type 1, etc) and how these are incorporated on the Linux desktop. (2004) N.B.: The introductory overview is dated, but the details that follow are still quite useful today. (2009)
Luc Devroye's Font Pages
- Contains lots of information about fonts, including specialized fonts, fonts by country, metafonts, typography and research.
Open Font Library
- The goal of this project is to collect free software fonts - those that may be used, changed and shared freely. It is a sister project to the Open Clip Art Library, and has released or hosted over 125 fonts to date (2009).
Pango
- A flexible, open source solution for internationalized text layout and rendering.
SIL Font Downloads
- A cornucopia of free fonts for language support, especially for minority languages. These fonts are licensed under the GPL-compatible SIL Open Font License.
The FREETYPE Project
- Free, portable and high-quality software for digital typography.
True Type Font to Postscript type 1 Converter
- Converter of various scalable font formats (most notably TTF) and of the bitmapped BDF format into PostScript Type 1 fonts and metrics (.pfa, .pfb, .afm).
Unicode
- Details of every unicode character there is.
Unifont Homepage
- The best Unicode font site available; includes information about Unicode fonts, Unicode-enabled software, internationalization, and Unicode usability issues on free/libre/open source (FLOSS) operating systems.
Xft - the X Font Library
- A client-side font API for X applications; uses Fontconfig to select fonts and the X protocol for rendering them.