font2c

convert font files to C source code arrays

TLDR

Convert font to C array

$ font2c [font.ttf] [output.c]

Specify character range

$ font2c --range [32-126] [font.ttf] [output.c]

Set pixel size

$ font2c --size [16] [font.ttf] [output.c]

Generate header file

$ font2c --header [font.ttf] [output.h]

SYNOPSIS

font2c [options] font-file output-file

font2c converts font files to C source code arrays for embedded systems. It renders characters at specified sizes and outputs bitmap data as C arrays.
The tool enables using custom fonts on displays without font rendering libraries. Character ranges can be limited to reduce memory usage on constrained devices.
font2c produces data suitable for microcontrollers, OLED displays, and other embedded graphics applications.

PARAMETERS

FONT-FILE

Input font file (.ttf, .otf).

OUTPUT-FILE

Output C source file.

--range CHARS

Character range to include.

--size PIXELS

Font size in pixels.

--header

Generate header file.

--format FORMAT

Output format.

--help

Display help information.

CAVEATS

Output size depends on font and character count. Anti-aliasing may not work on all targets. Bitmap fonts lose scalability.

HISTORY

font2c tools exist in various forms for embedded development, converting vector fonts to bitmap arrays usable without runtime font rendering on resource-constrained devices.