RecaptchaNet 3.1.0

.NET Core 3.1 .NET Framework 4.5
dotnet add package RecaptchaNet --version 3.1.0
NuGet\Install-Package RecaptchaNet -Version 3.1.0
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="RecaptchaNet" Version="3.1.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add RecaptchaNet --version 3.1.0
#r "nuget: RecaptchaNet, 3.1.0"
#r directive can be used in F# Interactive, C# scripting and .NET Interactive. Copy this into the interactive tool or source code of the script to reference the package.
// Install RecaptchaNet as a Cake Addin
#addin nuget:?package=RecaptchaNet&version=3.1.0

// Install RecaptchaNet as a Cake Tool
#tool nuget:?package=RecaptchaNet&version=3.1.0

reCAPTCHA for .NET is a top .NET-based reCAPTCHA library which allows developers to easily integrate Google's reCAPTCHA service in ASP.NET web applications (Web Forms, MVC 5, ASP.NET Core).

The following are highlights of the library are:

* Renders reCAPTCHA widget and verifies reCAPTCHA response with minimal amount of code
* Provides reCAPTCHA web control (ASP.NET Web Forms for .NET Framework 4.5 and above
* Provides HTML helper to quickly render reCAPTCHA widget (ASP.NET MVC 5 / ASP.NET Core 3.1 and above)
* Supprts reCAPTCHA version 2
* One of the most well-documented reCAPTCHA libraries in the open source community

Product Versions
.NET net5.0 net5.0-windows net6.0 net6.0-android net6.0-ios net6.0-maccatalyst net6.0-macos net6.0-tvos net6.0-windows net7.0 net7.0-android net7.0-ios net7.0-maccatalyst net7.0-macos net7.0-tvos net7.0-windows
.NET Core netcoreapp3.1
.NET Framework net45 net451 net452 net46 net461 net462 net463 net47 net471 net472 net48 net481
Compatible target framework(s)
Additional computed target framework(s)
Learn more about Target Frameworks and .NET Standard.

NuGet packages (3)

Showing the top 3 NuGet packages that depend on RecaptchaNet:

Package Downloads

N2 Part for adding a Form.


Provides a controller that is ready for MVC application to manage user authentication and registration. Github source:


This is testing of reCaptha for Nuget lib

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last updated
3.1.0 93,032 1/20/2021
3.0.0 746 1/16/2021
2.1.0 683,405 12/8/2015
2.0.0 5,805 11/23/2015
1.8.0 28,655 7/31/2015
1.7.0 13,466 4/19/2015
1.6.0 28,531 8/5/2014
1.5.1 1,182 8/2/2014
1.5.0 5,598 7/29/2014
1.4.0 1,216 7/28/2014
1.3.0 105,687 8/18/2013
1.2.0 17,270 2/27/2013
1.0.1 1,468 2/3/2013
1.0.0 1,271 2/3/2013

1. Supports ASP.NET Core
2. Optimised code and interfaces
3. Removed reCAPTCHA v1 functionality
4. Fixed issues

1. Supports data type property (API v2 only)
2. Supports data size property (API v2 only)
3. Bug fixes

1. Support for reCAPTCHA v2 APIs.
2. Bug fixes

1. Fixed the SSL issue by adding an enum called SslBehavior and made it the type of the UseSsl property. UseSsl property is no longer a boolean property.

1. Migrated code from CodePlex to GitHub.
2. Bug fixes
3. Optimized code
4. Changed the license to Apache license v2.0

1. Bug fixes
2. Optimized code

1. Added support for HTTPS.
2. Signed the assemblies

1. Added legacy support for .NET 4.0 & ASP.NET MVC 4.
2. Added support for .NET 4.5.1.

1. Minor bug fixes
2. Replaced the direct reference to ASP.NET MVC assembly with a dependency on the ASP.NET MVC Nuget package.

1. You can now verify a user's response to recpatcha challenge asynchronously using the new "await" keyword.
2. By default, recpacha control uses the current UI culture's language. With this release, you can now set it manually if you want.
3. The package adds the RecpatchaNet.ReadMe.txt file to your project to help you get started as quickly as possible.