SixLabors.Fonts 1.0.0-beta19

The ID prefix of this package has been reserved for one of the owners of this package by Prefix Reserved
.NET Core 3.1 .NET Standard 2.0
This is a prerelease version of SixLabors.Fonts.
dotnet add package SixLabors.Fonts --version 1.0.0-beta19
NuGet\Install-Package SixLabors.Fonts -Version 1.0.0-beta19
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.
<PackageReference Include="SixLabors.Fonts" Version="1.0.0-beta19" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add SixLabors.Fonts --version 1.0.0-beta19
#r "nuget: SixLabors.Fonts, 1.0.0-beta19"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package.
// Install SixLabors.Fonts as a Cake Addin
#addin nuget:?package=SixLabors.Fonts&version=1.0.0-beta19&prerelease

// Install SixLabors.Fonts as a Cake Tool
#tool nuget:?package=SixLabors.Fonts&version=1.0.0-beta19&prerelease



Build Status codecov License: Apache 2.0

GitHub issues GitHub stars GitHub forks

SixLabors.Fonts is a new cross-platform font loading and drawing library.


Support Six Labors

Support the efforts of the development of the Six Labors projects.


  • Detailed documentation for the Fonts API is available. This includes additional conceptual documentation to help you get started.
  • Our Samples Repository is also available containing buildable code samples demonstrating common activities.


Code of Conduct

This project has adopted the code of conduct defined by the Contributor Covenant to clarify expected behavior in our community. For more information, see the .NET Foundation Code of Conduct.


Install stable releases via Nuget; development releases are available via MyGet.

Package Name Release (NuGet) Nightly (MyGet)
SixLabors.Fonts NuGet MyGet

Manual build

If you prefer, you can compile Fonts yourself (please do and help!)

Alternatively, you can work from command line and/or with a lightweight editor on both Linux/Unix and Windows:

To clone Fonts locally, click the "Clone in [YOUR_OS]" button above or run the following git commands:

git clone

If working with Windows please ensure that you have enabled log file paths in git (run as Administrator).

git config --system core.longpaths true


This repository contains git submodules. To add the submodules to the project, navigate to the repository root and type:

git submodule update --init --recursive


  • Reading font description (name, family, subname etc plus other string metadata).
  • Loading OpenType fonts with with CFF1 and True Type outlines.
  • Loading True Type fonts.
  • Loading WOFF fonts.
  • Loading WOFF2 fonts.
  • Load all compatible fonts from local machine store.
  • Suppord for line breaking based on UAX 14
  • Support for rendering left to right, right to left and bidirectional text.
  • Support for ligatures.
  • Support for advanced OpenType features glyph substitution (GSUB) and glyph positioning (GPOS)

API Examples

Read font description

FontDescription description = null;
using(var fs = File.OpenRead("Font.ttf")){
    description = FontDescription.Load(fs); // once it has loaded the data the stream is no longer required and can be disposed of

string name = description.FontName(CultureInfo.InvariantCulture);

Populating a font collection

FontCollection fonts = new FontCollection();
FontFamily font1 = fonts.Add("./path/to/font1.ttf");
FontFamily font2 = fonts.Add("./path/to/font2.woff");

How can you help?

Please... Spread the word, contribute algorithms, submit performance improvements, unit tests.

Projects using SixLabors.Fonts

The SixLabors.Fonts Team

Product Compatible and additional computed target framework versions.
.NET net5.0 was computed.  net5.0-windows was computed.  net6.0 was computed.  net6.0-android was computed.  net6.0-ios was computed.  net6.0-maccatalyst was computed.  net6.0-macos was computed.  net6.0-tvos was computed.  net6.0-windows was computed.  net7.0 was computed.  net7.0-android was computed.  net7.0-ios was computed.  net7.0-maccatalyst was computed.  net7.0-macos was computed.  net7.0-tvos was computed.  net7.0-windows was computed. 
.NET Core netcoreapp2.0 was computed.  netcoreapp2.1 was computed.  netcoreapp2.2 was computed.  netcoreapp3.0 was computed.  netcoreapp3.1 is compatible. 
.NET Standard netstandard2.0 is compatible.  netstandard2.1 is compatible. 
.NET Framework net461 was computed.  net462 was computed.  net463 was computed.  net47 was computed.  net471 was computed.  net472 was computed.  net48 was computed.  net481 was computed. 
MonoAndroid monoandroid was computed. 
MonoMac monomac was computed. 
MonoTouch monotouch was computed. 
Tizen tizen40 was computed.  tizen60 was computed. 
Xamarin.iOS xamarinios was computed. 
Xamarin.Mac xamarinmac was computed. 
Xamarin.TVOS xamarintvos was computed. 
Xamarin.WatchOS xamarinwatchos was computed. 
Compatible target framework(s)
Additional computed target framework(s)
Learn more about Target Frameworks and .NET Standard.

NuGet packages (56)

Showing the top 5 NuGet packages that depend on SixLabors.Fonts:

Package Downloads
ClosedXML The ID prefix of this package has been reserved for one of the owners of this package by

See release notes ClosedXML is a .NET library for reading, manipulating and writing Excel 2007+ (.xlsx, .xlsm) files. It aims to provide an intuitive and user-friendly interface to dealing with the underlying OpenXML API.

NPOI The ID prefix of this package has been reserved for one of the owners of this package by

.NET port of Apache POI | Contact us on telegram:

SixLabors.ImageSharp.Drawing The ID prefix of this package has been reserved for one of the owners of this package by

An extension to ImageSharp that allows the drawing of images, paths, and text.


PdfSharp for .NET Core PdfSharpCore is a partial port of PdfSharp.Xamarin for .NET Core Additionally MigraDoc has been ported as well (from version 1.32). Images have been implemented with ImageSharp from

SixLabors.Shapes.Text The ID prefix of this package has been reserved for one of the owners of this package by

Allows generating glyphs for text and a fonts for manipulation using SixLabors.Shapes

GitHub repositories (18)

Showing the top 5 popular GitHub repositories that depend on SixLabors.Fonts:

Repository Stars
a .NET library that can read/write Office formats without Microsoft Office installed. No COM+, no interop.
ClosedXML is a .NET library for reading, manipulating and writing Excel 2007+ (.xlsx, .xlsm) files. It aims to provide an intuitive and user-friendly interface to dealing with the underlying OpenXML API.
PeachPie - the PHP compiler and runtime for .NET and .NET Core
Scan documents to PDF and more, as simply as possible.
Damselfly is a server-based Photograph Management app. The goal of Damselfly is to index an extremely large collection of images, and allow easy search and retrieval of those images, using metadata such as the IPTC keyword tags, as well as the folder and file names. Damselfly includes support for object/face detection, and face-recognition.
Version Downloads Last updated
1.0.0-beta19 446,605 10/30/2022
1.0.0-beta18 4,406,596 7/22/2022
1.0.0-beta17 1,726,852 5/18/2022
1.0.0-beta16 1,741,374 2/9/2022
1.0.0-beta15 963,859 5/20/2021
1.0.0-beta0013 4,834,465 6/18/2020
1.0.0-beta0012 51,793 6/8/2020
1.0.0-beta0011 219,346 5/13/2020
1.0.0-beta0009 1,534,212 9/1/2019
1.0.0-beta0008 931,477 1/25/2019
1.0.0-beta0007 686,720 8/5/2018
1.0.0-beta0006 7,808 6/7/2018
1.0.0-beta0005 2,334,328 5/24/2018
1.0.0-beta0004 3,150 3/27/2018
1.0.0-beta0003 134,118 11/17/2017
1.0.0-beta0002 15,482 9/16/2017
1.0.0-beta0001 24,210 9/13/2017
0.1.0-alpha0016 13,881 7/16/2017
0.1.0-alpha0015 760 6/22/2017
0.1.0-alpha0014 73,407 6/13/2017
0.1.0-alpha0013 1,236 6/6/2017
0.1.0-alpha0012 726 6/4/2017
0.1.0-alpha0011 243,467 5/30/2017
0.1.0-alpha0010 26,716 5/2/2017
0.1.0-alpha0009 738 4/21/2017
0.1.0-alpha0008 1,895 4/17/2017
0.1.0-alpha0007 733 4/16/2017
0.1.0-alpha0006 763 4/13/2017
0.1.0-alpha0005 848 4/12/2017
0.1.0-alpha0004 776 4/12/2017
0.1.0-alpha0003 743 4/12/2017
0.1.0-alpha0002 20,568 3/12/2017
0.1.0-alpha0001 832 3/5/2017