Skip to content
Switch branches/tags

Latest commit


Git stats


Failed to load latest commit information.
Latest commit message
Commit time

Sources for the Lato font family

  • Version 3.100.dev2; Latin+Cyrillic+Greek+IPA opensource
  • Created by: tyPoland Lukasz Dziedzic
  • Designed by: Łukasz Dziedzic with Adam Twardoch and Botio Nikoltchev
  • Creation year: 2020
  • Copyright (c) 2010-2020 by tyPoland Lukasz Dziedzic with Reserved Font Name “Lato”. Licensed under the Licensed under the SIL Open Font License, Version 1.1.
  • Lato is a trademark of tyPoland Lukasz Dziedzic.
  • Website URL:

Lato is a sanserif typeface family designed in the Summer 2010 and extended in the Summer 2013 by Warsaw-based designer Lukasz Dziedzic ("Lato" means "Summer" in Polish). It tries to carefully balance some potentially conflicting priorities: it should seem quite "transparent" when used in body text but would display some original traits when used in larger sizes. The classical proportions, particularly visible in the uppercase, give the letterforms familiar harmony and elegance. At the same time, its sleek sanserif look makes evident the fact that Lato was designed in the 2010s, even though it does not follow any current trend. The semi-rounded details of the letters give Lato a feeling of warmth, while the strong structure provides stability and seriousness. In 2013-2014, the family was greatly extended (with the help of Adam Twardoch and Botio Nikoltchev) to cover 3000+ glyphs over nine weights with italics. It now supports 100+ Latin-based languages, 50+ Cyrillic-based languages as well as Greek and IPA phonetics. The Lato fonts are available free of charge under the SIL Open Font License from


To contact the Lato team, create a Github account and open a Github issue on this repository.


  1. Download or clone this repo
  2. Download and install most recent FontLab 7
  3. Install Python 3
  4. Run:
python3 -m pip install --user --upgrade git+[interpolatable,lxml,plot,symfont,type1,ufo,unicode,woff] git+ afdko psautohint
  1. Go to the tools folder
  2. Run FontLab 7
  3. In FontLab 7, open the 01_export_fontlab_lato.vfpy script. Wait until it exports the fonts as DesignSpace + UFO and quits
  4. In Terminal, go to the tools folder and run:

Technical details

Selective building

With python3 -h you can check additional build options. For example, python3 ttf will only build static TTFs.

Mark attachment

In this version, dynamic mark attachment (mark and mkmk is limited to combining marks, and to Latin and Cyrillic base glyphs that don’t have precomposed marks). In FontLab, in Glyph panel, OT Glyph Definition Class for those base glyphs is set to Simple, which translates to the otsimp virtual tag. The marks are set as Mark, which translates to the otmark virtual tag. The FEA code has a portion between #> vtags and #< vtags which includes the virtual tags as FEA classes. Then the portion:

table GDEF {
    GlyphClassDef @otsimp, @otliga, @otmark, [];

ensures that fontmake only builds anchor-based mark attachment (mark and mkmk for the @otsimp base glyphs and @otmark marks).


Version 3.100.dev2 (2020-08-16)

  • The sources are now FontLab 7 VFJ, with 2 masters (Hairline, Black) in 2 fonts (Upright, Italic)
  • Added a few more .ss05 glyphs
  • Redesigned the _i ligatures to have a dot, and moved them to liga
  • Added the ss06 feature for Serbian localized glyphs
  • Renamed glyphs in source to use .glyphs-compatible names
  • Added scripted build system (see Building)
  • Improved anchors for mark & mkmk, limiting them to non-accented Latin and Cyrillic base letters, and to combining marks.
  • Added table STAT definition in FEA — note: for this reason, the features don’t compile in FontLab.
  • TODO Automate STAT building either via statmake or FEA. Right now it’s done via FEA but it’s stupid since the statics get the STAT for the VF. Perhaps just remove STAT from the statics in a postprocessing step

Version 3.002.dev1 (2019-10-14)

  • Added the sources in FontLab VI VFC & VFJ format (20-VFC-2M-designsource folder has 2 masters, 30-VFC-3M-production has 3 masters, needed for VF export)
  • Renamed glyphs for more consistent experience
  • Updated OpenType feature definitions
  • Moved ligatures that involve i and j to dlig feature (by popular demand)
  • Added accented “legible” .ss05 forms

Version 3.001.dev0 (2018-09-28)

  • Note: This is work in progress
  • Published the sources in FontLab Studio 5 VFB format
  • Updated the design of the Bsmall glyph in Italic
  • Updated the design of the fourfifths glyph
  • Updated the design of the aturned glyph in Upright
  • Updated the design of the Ismall glyph
  • Added the glyphs I.ss05 and l.ss05 and the associated ss05 “legible forms” feature

Version 2.015 (2015-08-06)

  • Initial implementation of mark positioning (should work for most glyphs)
  • Autohinted using ttfautohint 1.3.

Version 2.015 (2015-08-06)

  • Initial implementation of mark positioning (should work for most glyphs)
  • Autohinted using ttfautohint 1.3.

Version 2.010 (2014-09-01)

  • Improved some contour bugs and diacritics positioning.
  • Improved outline quality.
  • Revised OTL features so that they work in browsers (ot-sanitise).
  • Autohinted using ttfautohint 1.1.
  • Interpolated the Medium weight differently so it provides more visual - difference from Regular.

Version 2.007 (2014-02-27)

  • Greatly expanded character set, revised metrics, four additional weights.

Version 1.104 (2011-11-08)

  • Merged the distribution again
  • Autohinted with updated ttfautohint 0.4 (which no longer causes Adobe and iOS problems) except the Hai and Lig weights which are hinted in FLS 5.1.

Version 1.102 (2011-10-28)

  • Added OpenType Layout features
  • Split between desktop and web versions
  • Desktop version: all weights autohinted with FontLab Studio
  • Web version autohinted with ttfautohint 0.4 except the Hai and Lig weights

Version 1.101 (2011-09-30)

  • Fixed OS/2 table Unicode and codepage entries

Version 1.100 (2011-09-12)

  • Added Polish diacritics to the character set
  • Weights Hai and Lig autohinted with FontLab Studio
  • Other weights autohinted with ttfautohint 0.3

Version 1.011 (2010-12-29)

  • Added the soft hyphen glyph

Version 1.010 (2010-12-13)

  • Initial version released under SIL Open Font License
  • Western character set


Source files for the Lato fonts




No releases published


No packages published