Diacritics 3.3.20-pre

.NET Standard 1.2 .NET Framework 4.5
This is a prerelease version of Diacritics.
dotnet add package Diacritics --version 3.3.20-pre
NuGet\Install-Package Diacritics -Version 3.3.20-pre
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="Diacritics" Version="3.3.20-pre" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add Diacritics --version 3.3.20-pre
#r "nuget: Diacritics, 3.3.20-pre"
#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 Diacritics as a Cake Addin
#addin nuget:?package=Diacritics&version=3.3.20-pre&prerelease

// Install Diacritics as a Cake Tool
#tool nuget:?package=Diacritics&version=3.3.20-pre&prerelease


Version Downloads

Diacritics are used across many languages in order to change the sound-values of the letters to which they are added. In software development, diacritics often have to be replaced with non-diacritics, e.g. to improve usability of user input. Diacritics.NET is a basic mapper between diacritic characters an non-diacritic characters.

Download and Install Diacritics

This library is available on NuGet: https://www.nuget.org/packages/Diacritics/ Use the following command to install Diacritics using NuGet package manager console:

PM> Install-Package Diacritics

You can use this library in any .Net project which is compatible to PCL (e.g. Xamarin Android, iOS, Windows Phone, Windows Store, Universal Apps, etc.)

API Usage

Replace diacritic characters

The most common use case of this library is to find and replace diacritic characters in a given string. RemoveDiacritics is a string extension method which returns a diacritics-free string.

// Arrange
const string InputString = "Je veux aller à Saint-Étienne";

// Act
string removeDiacritics = InputString.RemoveDiacritics();

// Assert
removeDiacritics.Should().Be("Je veux aller a Saint-Etienne");

Find diacritic characters

The most common use case of this library is to detect and remove diacritic characters from a given string. If you just want to check whether a string contains diacritics, use the string extensions method HasDiacritics.

// Arrange
const string InputString = "Je veux aller à Saint-Étienne";

// Act
bool hasDiacritics = InputString.HasDiacritics();

// Assert

Using Diacritics with IoC

The example shown above uses extension methods which use a default implementation of IDiacriticsMapper, namely type DefaultDiacriticsMapper. If you're using an IoC container, you can register IDiacriticsMapper either with the provided DefaultDiacriticsMapper or with your own implementation of IDiacriticsMapper.

Add custom diactrics mappings

Diacritics is extensible. You can write your own language accent by implementing IAccentMapping (or AccentMapping base class). DiacriticsMapper accepts any IAccentMapping type at construction time. You are highly welcome to contribute to this library. Just create a fork, commit your changes and create a pull request.

TODO: Add/Remove methods for adding/removing accents at runtime.

Benchmark Tests

Tested Version<br> https://www.nuget.org/packages/Diacritics/2.1.19291.8-pre

Benchmark Environment<br> BenchmarkDotNet=v0.11.5, OS=Windows 10.0.17134.885 (1803/April2018Update/Redstone4) Intel Core i7-7600U CPU 2.80GHz (Kaby Lake), 1 CPU, 4 logical and 2 physical cores Frequency=2835933 Hz, Resolution=352.6176 ns, Timer=TSC .NET Core SDK=3.0.100 [Host] : .NET Core 2.2.4 (CoreCLR 4.6.27521.02, CoreFX 4.6.27521.01), 64bit RyuJIT ShortRun : .NET Core 2.2.4 (CoreCLR 4.6.27521.02, CoreFX 4.6.27521.01), 64bit RyuJIT

Job=ShortRun IterationCount=3 LaunchCount=1 WarmupCount=3

Benchmark Results

Method Mean Error StdDev
RemoveDiacritics (9 latin chars) 230.5 ns 476.2 ns 26.10 ns
RemoveDiacritics (23 diacritic chars) 651.5 ns 843.4 ns 46.23 ns
RemoveDiacritics (408 latin chars) 8,697.1 ns 9,938.1 ns 544.74 ns
RemoveDiacritics (729 diacritic chars) 15,045.0 ns 12,893.0 ns 706.71 ns

Legend<br> Mean : Arithmetic mean of all measurements<br> Error : Half of 99.9% confidence interval<br> StdDev : Standard deviation of all measurements<br> Rank : Relative position of current benchmark mean among all benchmarks (Arabic style)<br> 1 ns : 1 Nanosecond (0.000000001 sec)<br>


This project is Copyright © 2019 Thomas Galliker. Free for non-commercial use. For commercial use please contact the author.

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.  net8.0 was computed.  net8.0-android was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed. 
.NET Core netcoreapp1.0 was computed.  netcoreapp1.1 was computed.  netcoreapp2.0 was computed.  netcoreapp2.1 was computed.  netcoreapp2.2 was computed.  netcoreapp3.0 was computed.  netcoreapp3.1 was computed. 
.NET Standard netstandard1.2 is compatible.  netstandard1.3 was computed.  netstandard1.4 was computed.  netstandard1.5 was computed.  netstandard1.6 was computed.  netstandard2.0 is compatible.  netstandard2.1 is compatible. 
.NET Framework net45 is compatible.  net451 was computed.  net452 was computed.  net46 was computed.  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 tizen30 was computed.  tizen40 was computed.  tizen60 was computed. 
Universal Windows Platform uap was computed.  uap10.0 was computed. 
Windows Phone wpa81 was computed. 
Windows Store netcore451 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.
  • .NETFramework 4.5

    • No dependencies.
  • .NETStandard 1.2

  • .NETStandard 2.0

    • No dependencies.
  • .NETStandard 2.1

    • No dependencies.

NuGet packages (2)

Showing the top 2 NuGet packages that depend on Diacritics:

Package Downloads

Chatbot dll


Extension method to convert any string into a dash seperated string to be used for a URL. Eg: hello world is turned into hello-world. Non alpha numeric characters are stripped and diacritics are removed too.

GitHub repositories (2)

Showing the top 2 popular GitHub repositories that depend on Diacritics:

Repository Stars
The Free Software Media System
Open source media server.
Version Downloads Last updated
3.3.20-pre 669 5/27/2023
3.3.19-pre 290 4/18/2023
3.3.18 103,687 3/19/2023
3.3.17-pre 501 12/31/2022
3.3.16-pre 316 12/21/2022
3.3.15-pre 300 12/18/2022
3.3.14 229,912 4/27/2022
3.3.13-pre 362 4/17/2022
3.3.12-pre 320 4/17/2022
3.3.11-pre 14,032 1/9/2022
3.3.10 178,255 11/11/2021
3.3.9-pre 427 11/11/2021
3.3.8-pre 418 11/11/2021
3.3.7-pre 401 11/11/2021
3.3.6-pre 410 11/11/2021
3.3.4 32,025 10/7/2021
3.3.3-pre 429 10/7/2021
3.2.21207.2-pre 506 7/26/2021
3.1.20334.1-pre 6,201 11/29/2020
3.1.20333.3-pre 576 11/28/2020
3.0.20116.1-pre 3,201 4/25/2020
2.1.20116.2-pre 606 4/25/2020
2.1.20036.1 326,482 2/4/2020
2.1.20017.2-pre 635 1/17/2020
2.1.19293.1 62,277 10/20/2019
2.1.19292.2-pre 612 10/19/2019
2.1.19292.1-pre 610 10/19/2019
2.1.19291.8-pre 634 10/18/2019
2.1.19291.6-pre 638 10/18/2019
2.1.19286.1-pre 622 10/13/2019
2.1.19240.1-pre 668 8/28/2019
2.0.19240.3 24,179 8/28/2019
2.0.19240.2-pre 669 8/28/2019
2.0.19117.1-pre 898 4/27/2019
2.0.18316.1 90,979 11/12/2018
2.0.18311.1 1,121 11/7/2018
2.0.18308.2-pre 875 11/4/2018
2.0.18308.1-pre 911 11/4/2018
2.0.18282.1 4,484 10/9/2018
2.0.18281.2-pre 915 10/8/2018
2.0.18281.1-pre 909 10/8/2018
1.0.8-pre1 1,011 9/5/2018
1.0.7 62,971 6/13/2018
1.0.7-pre2 1,045 6/11/2018
1.0.7-pre1 1,042 6/11/2018
1.0.6 6,602 2/21/2018
1.0.5 2,990 6/8/2017
1.0.5-pre3 1,105 4/7/2017
1.0.5-pre2 1,079 4/7/2017
1.0.5-pre1 1,074 4/7/2017
1.0.4 11,195 3/24/2017
1.0.4-pre2 1,129 3/22/2017
1.0.4-pre1 1,188 12/13/2016
1.0.3 2,941 12/13/2016
1.0.3-pre3 1,144 12/13/2016
1.0.3-pre2 1,159 4/4/2016
1.0.3-pre1 1,149 4/4/2016
1.0.2 19,321 1/28/2016
1.0.1 1,374 12/16/2015
1.0.0 1,414 12/16/2015
1.0.0-pre1 1,210 12/16/2015

- New portuguese accents (masculine or
- Continuous improvement, new diacritics mappings
- Bug fixes and performance improvements

- Performance improvements in RemoveDiacritics
- New method StaticDiacritics.SetDefaultMapper to replace the default IDiacriticsMapper
- Add vietnamese mappings

- Refactoring to NetStandard + NET 4.5.2
- Several bug fixes + new diacritics added

- Add Turkish ı mapping to i

- Support for .Net Standard 1.0
- Add Icelandic ð mapping to o

- Add Spanish ñ mapping to n

- Add support for combined cedilla characters
- Fix German ß mapping to ss

- Add .Net 4.5 implementation as dedicated assembly
- Add missing accents mappings
- Bug fix: Russian accents mapping fixed

- Bug fix: RemoveDiacritics now also removes upper case diacritic characters
- Bug fix: Correct handling of first letter upper case characters

- Improved initialization performance by factor 8

- Added ArabicAccentsMapping
- Added BulgarianAccentsMapping
- Added CatalanAccentsMapping
- Added CroatianAccentsMapping
- Added CzechAccentsMapping
- Added DutchAccentsMapping
- Added EnglishAccentsMapping
- Added EstonianAccentsMapping
- Added FilipinoAccentsMapping
- Added FrenchAccentsMapping
- Added GermanAccentsMapping
- Added GreekAccentsMapping
- Added HungarianAccentsMapping
- Added IcelandicAccentsMapping
- Added ItalianAccentsMapping
- Added LatvianAccentsMapping
- Added PolishAccentsMapping
- Added PortugueseAccentsMapping
- Added RomanianAccentsMapping
- Added RussianAccentsMapping
- Added SlovakianAccentsMapping
- Added SpanishAccentsMapping
- Added TurkishAccentsMapping
- Added UkarainianAccentsMapping