System.IdentityModel.Tokens.Jwt 8.22.0

IdentityModel Extensions for .NET

Nuget

The IdentityModel Extensions for .NET library provides robust tools to enhance authentication and authorization workflows in your .NET applications. Backed by the Entra team, this library simplifies working with OpenID Connect (OIDC), OAuth2.0, and JSON Web Tokens (JWT) in .NET.

Whether you're building secure APIs, implementing token validation, or managing claims, this library is designed to handle the heavy lifting for you.

Why IdentityModel?

  • Widely Adopted: Trusted by thousands of developers to integrate OIDC and OAuth2.0 standards.
  • Secure by Design: Built with security as a priority to reduce common vulnerabilities.
  • Extensible: Easily extend or customize for advanced use cases.
  • Battle hardened: Validates 5+ trillion requests daily, and growing.

Versions

You can find the release notes for each version here. Older versions can be found here.

Version Lifecycle and Support Matrix

See Long Term Support policy for details.

Major Version Currently Supported Version Status
8.x from 8.0.1 to Nuget Active (Current) - Tied to .NET 9 (STS) & 10 (LTS) ~ Nov, 2028
7.x 7.7.1 Supported (LTS) through .NET 8 LTS lifetime Nov 10, 2026.
⚠️Versions < 7.7.1 not supported.
5.x 5.7.0 Supported (LTS), tied to the Microsoft.Owin.Security.JWT 4.2.2 lifetime.
⚠️Versions < 5.7.0 not supported.

IdentityModel 8.x

Version 8.x introduces significant updates and improvements:

  • Enhanced Performance: Optimized token validation to handle high-throughput scenarios.
  • .NET Compatibility: Fully compatible with .NET 9.

🧭LTS: Supported through .NET 9 LTS lifetime: May 12, 2026 + .NET 10 LTS (~3 years).

IdentityModel 7.x

IdentityModel 7x introduced several improvements related to serialization and consistency in the API, which provide a better user experience for developers, as well as full AOT compatibility on .NET, and considerable performance improvements compared to IdentityModel 6x.

🧭LTS: Supported through .NET 8 LTS lifetime: Nov 10, 2026.

⚡Recommendation: Move to 8.x.

IdentityModel 6.x

🧭Deprecated: Support ended with .NET 7 LTS lifetime: May 2024.

⚡Action: Move to 8.x.

IdentityModel 5.x

Not a recommended version

🧭LTS: Supported for Microsoft.Owin.Security.JWT

⚡Action: Move to 8.x.

Samples and Documentation

The scenarios supported by IdentityModel extensions for .NET are described in Scenarios. The libraries are in particular used part of ASP.NET security to validate tokens in ASP.NET Web Apps and Web APIs. To learn more about token validation, and find samples, see:

Community Help and Support

Report a bug or request a feature directly in the GitHub repo.

Have a design proposal? Please submit a design proposal before starting work on a PR to ensure it means the goals/objectives of this library and it's priorities.

We leverage Stack Overflow to work with the community on supporting Microsoft Entra and its SDKs, including this one! We highly recommend you ask your questions on Stack Overflow (we're all on there!) Also browse existing issues to see if someone has had your question before.

We recommend you use the "identityModel" tag so we can see it! Here is the latest Q&A on Stack Overflow for IdentityModel: https://stackoverflow.com/questions/tagged/identityModel

Security Reporting

See SECURITY.md

Contributing

All code is licensed under the MIT license and we triage actively on GitHub. We enthusiastically welcome contributions and feedback. See Contributing.md for guidelines, branch information, build instructions, and legalese.

License

Copyright (c) Microsoft Corporation. All rights reserved. Licensed under the MIT License (the "License");

We Value and Adhere to the Microsoft Open Source Code of Conduct

This project has adopted the Microsoft Open Source Code of Conduct. For more information see the Code of Conduct FAQ or contact opencode@microsoft.com with any additional questions or comments.

Showing the top 20 packages that depend on System.IdentityModel.Tokens.Jwt.

Packages Downloads
Microsoft.IdentityModel.Protocols.OpenIdConnect
Includes types that provide support for OpenIdConnect protocol.
175
Microsoft.IdentityModel.Protocols.OpenIdConnect
Includes types that provide support for OpenIdConnect protocol.
176
Microsoft.IdentityModel.Protocols.OpenIdConnect
Includes types that provide support for OpenIdConnect protocol.
177
Microsoft.IdentityModel.Protocols.OpenIdConnect
Includes types that provide support for OpenIdConnect protocol.
178
Microsoft.IdentityModel.Protocols.OpenIdConnect
Includes types that provide support for OpenIdConnect protocol.
179
Microsoft.IdentityModel.Protocols.OpenIdConnect
Includes types that provide support for OpenIdConnect protocol.
181
Microsoft.IdentityModel.Protocols.OpenIdConnect
Includes types that provide support for OpenIdConnect protocol.
183
Microsoft.IdentityModel.Protocols.OpenIdConnect
Includes types that provide support for OpenIdConnect protocol.
185
Microsoft.IdentityModel.Protocols.OpenIdConnect
Includes types that provide support for OpenIdConnect protocol.
186
Microsoft.IdentityModel.Protocols.OpenIdConnect
Includes types that provide support for OpenIdConnect protocol.
192
Microsoft.IdentityModel.Protocols.OpenIdConnect
Includes types that provide support for OpenIdConnect protocol.
205
Microsoft.IdentityModel.Protocols.OpenIdConnect
Includes types that provide support for OpenIdConnect protocol.
214
Microsoft.IdentityModel.Protocols.OpenIdConnect
Includes types that provide support for OpenIdConnect protocol.
218
Microsoft.IdentityModel.Protocols.OpenIdConnect
Includes types that provide support for OpenIdConnect protocol.
230
Microsoft.IdentityModel.Protocols.OpenIdConnect
Includes types that provide support for OpenIdConnect protocol.
286
Microsoft.IdentityModel.Protocols.OpenIdConnect
Includes types that provide support for OpenIdConnect protocol.
357
Microsoft.IdentityModel.Protocols.OpenIdConnect
Includes types that provide support for OpenIdConnect protocol.
397
Microsoft.IdentityModel.Protocols.OpenIdConnect
Includes types that provide support for OpenIdConnect protocol.
471

Version Downloads Last updated
8.22.0 2 07/29/2026
8.21.0 12 07/23/2026
8.20.0 15 07/22/2026
8.19.2 12 07/15/2026
8.19.1 19 06/04/2026
8.19.0 15 06/05/2026
8.18.0 32 05/01/2026
8.17.0 35 03/24/2026
8.16.0 47 02/14/2026
8.15.0 145 11/19/2025
8.14.0 109 08/16/2025
8.13.1 111 08/11/2025
8.13.0 98 07/22/2025
8.12.1 131 06/18/2025
8.12.0 136 06/04/2025
8.11.0 121 05/25/2025
8.10.0 126 05/18/2025
8.9.0 121 04/25/2025
8.8.0 129 04/10/2025
8.7.0 134 03/30/2025
8.6.1 116 03/30/2025
8.6.0 135 03/30/2025
8.5.0 148 02/16/2025
8.4.0 131 02/14/2025
8.3.1 122 03/30/2025
8.3.0 128 12/08/2024
8.2.1 121 11/18/2024
8.2.0 105 11/06/2024
8.1.2 133 10/17/2024
8.1.1 115 10/22/2024
8.0.2 123 08/28/2024
8.0.1 166 08/01/2024
8.0.0 153 07/20/2024
8.0.0-preview1 169 07/20/2024
7.7.3 13 07/15/2026
7.7.1 125 07/20/2024
7.7.0 190 07/20/2024
7.6.3 135 07/20/2024
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7.4.1 143 07/20/2024
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7.4.0-preview1 139 07/20/2024
7.3.1 136 07/20/2024
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7.1.2 255 02/04/2024
7.0.3 162 02/13/2024
7.0.2 143 07/20/2024
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7.0.0-preview5 165 07/20/2024
7.0.0-preview4 178 07/20/2024
7.0.0-preview3 146 07/20/2024
7.0.0-preview2 150 07/20/2024
7.0.0-preview 132 07/20/2024
6.36.0 160 07/20/2024
6.35.1 136 07/20/2024
6.35.0 178 07/20/2024
6.34.0 137 07/20/2024
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6.15.1 228 02/04/2024
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6.10.1 137 07/20/2024
6.10.0 161 02/04/2024
6.9.0 153 07/20/2024
6.8.0 159 02/13/2024
6.7.2-preview-10803222715 145 07/20/2024
6.7.1 145 07/20/2024
6.6.0 155 07/20/2024
6.5.1 136 07/20/2024
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5.7.1 12 07/15/2026
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5.1.5 156 07/20/2024
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5.1.3 146 07/20/2024
5.1.2 156 07/20/2024
5.0.0 135 07/20/2024
4.0.4.403061554 148 07/20/2024
4.0.4.402070948 156 07/20/2024
4.0.3.308261200 139 07/20/2024
4.0.2.206221351 128 07/20/2024
4.0.2.205111437 125 07/20/2024
4.0.2.202250711 154 07/20/2024
4.0.1 167 07/20/2024
4.0.0 144 07/20/2024
3.0.2 148 07/20/2024
3.0.1 147 07/20/2024
3.0.0 150 07/20/2024
1.0.0 140 07/20/2024