Pixel-perfect monospaced font for code. No ligatures. No surprises.

Website • Download • Contributing

---

Why Sergamon?

Most programming fonts chase the same goals: ligatures, multiple weights, smooth curves. Sergamon goes the opposite direction.

Every glyph is hand-crafted on an 8x16 pixel grid — the same constraints as a classic hardware terminal. The result is a font that is sharp, predictable, and honest:

• == is two equal signs. -> is a hyphen and a greater-than. No ligatures, no magic substitutions — your source code looks exactly as you typed it.
• One weight. No bold, no light, no italic. Like a real terminal, every character has the same stroke.
• Confusables are distinct. 0/O/o, 1/l/I, `/'/" — each pair is carefully designed to be unambiguous at a glance.
• Massive coverage. 3,800+ glyphs spanning Latin, Cyrillic, Greek, Hebrew, Arabic, Thai, Devanagari, Georgian, Armenian, box-drawing, braille, math operators, and more.

Quick Install

Download the latest Sergamon.ttf (desktop) or Sergamon.woff2 (web) from the Releases page.

macOS

1. Double-click Sergamon.ttf and click Install Font in Font Book.

Updating? macOS caches font metadata aggressively. Remove the old font first, then:

sudo atsutil databases -remove
sudo killall fontd

Windows

Right-click Sergamon.ttf and select Install (or Install for all users).

Linux

cp Sergamon.ttf ~/.local/share/fonts/
fc-cache -fv

Editor & Terminal Setup

VS Code

{
  "editor.fontFamily": "'Sergamon', monospace",
  "editor.fontSize": 16,
  "editor.letterSpacing": 0
}

JetBrains IDEs (IntelliJ, WebStorm, PyCharm, etc.)

Settings > Editor > Font — set Font to Sergamon, Size to 16.

Sublime Text

{
  "font_face": "Sergamon",
  "font_size": 16
}

Vim / Neovim (GUI)

set guifont=Sergamon:h16

iTerm2

Preferences > Profiles > Text — set Font to Sergamon, Size to 16. Disable Use bold fonts and Draw bold text in bright colors for best results.

Windows Terminal

{
  "profiles": {
    "defaults": {
      "font": {
        "face": "Sergamon",
        "size": 16
      }
    }
  }
}

Alacritty

[font]
size = 16.0

[font.normal]
family = "Sergamon"

Web Usage

@font-face {
  font-family: 'Sergamon';
  src: url('/fonts/Sergamon.woff2') format('woff2'),
       url('/fonts/Sergamon.ttf') format('truetype');
  font-display: swap;
}

code, pre {
  font-family: 'Sergamon', monospace;
}

Or load directly from the project site:

@font-face {
  font-family: 'Sergamon';
  src: url('https://sgmonda.com/sergamon/fonts/Sergamon.woff2') format('woff2');
  font-display: swap;
}

How It Works

Sergamon treats glyph definitions as source code. Each character lives in a plain-text .glyph file — an 8x16 pixel grid that a TypeScript pipeline compiles into vector font files.

# zero (U+0030)

........   . = empty pixel
........   X = filled pixel
........   8 columns wide
.XXXXX..  16 rows tall
XX...XX.
XX...XX.
XX..XXX.
XX.XXXX.
XXXX.XX.
XXX..XX.
XX...XX.
XX...XX.
.XXXXX..
........
........
........

.glyph files ──> parse ──> validate ──> optimize ──> vectorize ──> TTF ──> WOFF2

The optimizer merges adjacent filled pixels into larger rectangles before converting to vector paths, keeping the output compact and efficient.

Contributing

Contributions are welcome — whether refining an existing glyph, adding a new character, or improving the build pipeline. See CONTRIBUTING.md for everything you need: file format, style guidelines, testing workflow, and PR process.

License

Font files and glyph sources — SIL Open Font License 1.1 Build scripts and site code — MIT License