Fira Code: monospaced font with programming ligatures

Problem

Programmers use a lot of symbols, often encoded with several characters. For human brain sequences like ->, <= or := are single logical token, even if they take two or three places on the screen. Your eye spends non-zero amount of energy to scan, parse and join multiple characters into a single logical one. Ideally, all programming languages should be designed with full-fledged Unicode symbols for operators, but that’s not the case yet.

Solution

Download Fira Code v1.101 | Follow updates 📢 @FiraCode

Fira Code is a Fira Mono font extended with a set of ligatures for common programming multi-character combinations. This is just a font rendering feature: underlying code remains ASCII-compatible. This helps to read and understand code faster. For some frequent sequences like .. or // ligatures allow us to correct spacing.

Terminals support

Work	Don’t work
Terminal.app (OS X default terminal)	iTerm 2 (feature request)
Konsole (except KDE4)	GNOME Terminal
rxvt

Editor support

Work	Don’t work
Atom 1.1 or newer (instructions)	SublimeText (vote here)
Xcode (with this plugin)	Intellij Idea-based (vote here)
Visual Studio	Visual Studio Code (issue)
TextMate 2	Standalone Emacs (workaround)
MacVim 7.4 or newer (instructions)	gVim
Coda 2	Notepad++
Eclipse (Linux)	Eclipse (Mac and Win, vote here)
QtCreator	Xamarin Studio/Monodevelop
LightTable (instructions)
BBEdit (instructions)
RStudio
Chocolat
Kate, KWrite (except KDE 4)
Mancy
TextAdept (Linux, Mac)
GNOME Builder
Leafpad
Notepad (Win)
Probably work: Geany, gEdit, Smultron, Vico

Browser support

• IE 10+, Edge: enable with font-feature-settings: "calt" 1;
• Firefox
• Safari
• Chromium-based browsers: enable with font-variant-ligatures: contextual; or text-rendering: optimizeLegibility (see 571246)
• ACE
• CodeMirror

Code examples

Ruby:

JavaScript:

Erlang:

Go:

Haskell:

Alternatives

Another monospaced fonts with ligatures:

• Hasklig (free)
• PragmataPro (€59)
• Monoid (free)

Credits

This work is based on OFL-licensed Fira Mono font. Original Fira Mono font was not changed, only extended.

Fira Code was inspired by Hasklig font: Ligatures for Haskell code.

Thanks Georg Seifert for providing a Glyphs 2 license.

Changelog

1.101

• Added Light weight
• Adjusted rules when vertical centering of :, -, * and + occurs

1.100

• Fixed calt table conflicts (---- would incorrectly render as <!--)
• Added centered : (between digits, e.g. 10:40)
• Added lowercase-aligned -, * and + (only between lowercase letters, e.g. kebab case var-name, pointers *ptr etc)

1.000

Added weights:

• Retina (just slightly heavier than Regular)
• Medium
• Bold

Switched to calt instead of liga. You can now “step inside” the ligature in text editors.

Fira Code is now drawn and built in Glyps 2 app (should improve compatibility).

Added:

<-> <~~ <~ ~~~ ~> ~~>
<$ <+ <* *> +> $>
;;; ::: !!! ??? %% %%% ## ### ####
.- #_( =< **/ 0x www []

Redrawn:

{- -} ~= =~ =<< >>= <$> <=> .=

Removed: ?:

Total ligatures count: 115

0.6

Redrawn from Fira Mono 3.204 (slightly heavier weight)

Added:

** *** +++ -- --- ?:
/= /== .= ^= =~ ?= ||= |=
<<< <=< -<< -< >- >>- >=> >>>
<*> <|> <$> <+>
<!-- {- -} /** \\ \\\ ..< ?? ||| &&& <| |>

Added support for Powerline

0.5

Added: #{ ~- -~ <== ==> /// ;; </

0.4

• Added ~= ~~ #[
• Rolled back && and || to more traditional look
• === and !== are now rendered with 3 horisontal bars

0.3

Added: ~@ #? =:= =<

0.2.1

Fixed width of && and ||

0.2

Added: --> <-- && || =>> =/=

0.1

>>= =<< <<= ->> -> => <<- <-
=== == <=> >= <= >> << !== != <>
:= ++ #( #_
:: ... .. !! // /* */ />