Autofac 8.2.1

Autofac character Autofac logo

Autofac is an IoC container for Microsoft .NET. It manages the dependencies between classes so that applications stay easy to change as they grow in size and complexity. This is achieved by treating regular .NET classes as components.

Build status codecov NuGet

Autofac on Stack Overflow Join the chat at https://gitter.im/autofac/autofac

Get Packages

You can get Autofac by grabbing the latest NuGet package. There are several application integration and extended functionality packages to choose from. If you're feeling adventurous, continuous integration builds are on MyGet.

Release notes are available on GitHub.

Get Help

Need help with Autofac? We have a documentation site as well as API documentation. We're ready to answer your questions on Stack Overflow or check out the discussion forum.

Get Started

Our Getting Started tutorial walks you through integrating Autofac with a simple application and gives you some starting points for learning more.

Super-duper quick start:

Register components with a ContainerBuilder and then build the component container.

var builder = new ContainerBuilder();

builder.Register(c => new TaskController(c.Resolve<ITaskRepository>()));
builder.RegisterType<TaskController>();
builder.RegisterInstance(new TaskController());
builder.RegisterAssemblyTypes(controllerAssembly);

var container = builder.Build();

Resolve services from a lifetime scope - either the container or a nested scope:

var taskController = container.Resolve<TaskController>();

There is a growing number of application integration libraries that make using Autofac with your application a snap. Support for several popular frameworks is also available through the "Extras" packages.

Intrigued? Check out our Getting Started walkthrough!

Project

Autofac is licensed under the MIT license, so you can comfortably use it in commercial applications (we still love contributions though).

File issues in the repo with the associated feature/code.

Sponsors

Autofac is supported by AWS. Thanks for your contribution!

Contributing / Pull Requests

Refer to the Contributor Guide for setting up and building Autofac source.

You can also open this repository right now in VS Code.

Showing the top 20 packages that depend on Autofac.

Packages Downloads
Autofac.Extensions.DependencyInjection
Autofac implementation of the interfaces in Microsoft.Extensions.DependencyInjection.Abstractions, the .NET Framework dependency injection abstraction.
130
Autofac.Extensions.DependencyInjection
Autofac implementation of the interfaces in Microsoft.Extensions.DependencyInjection.Abstractions, the .NET Framework dependency injection abstraction.
365
Autofac.Extensions.DependencyInjection
Autofac implementation of the interfaces in Microsoft.Extensions.DependencyInjection.Abstractions, the .NET Framework dependency injection abstraction.
14,367
Autofac.Extras.DynamicProxy
Autofac extension for enabling AOP in conjunction with Castle.
383
Autofac.Extras.DynamicProxy
Autofac extension for enabling AOP in conjunction with Castle.
14,334
Quantum.Framework.Infrastructure
负责提供Ioc, AutoMapper, ScmRuntimeInfo, WorkContext, QuantumContext等核心组件, 不参与非核心组件的功能
67
Quantum.Framework.Infrastructure
负责提供Ioc, AutoMapper, ScmRuntimeInfo, WorkContext, QuantumContext等核心组件, 不参与非核心组件的功能
68
Quantum.Framework.Infrastructure
负责提供Ioc, AutoMapper, ScmRuntimeInfo, WorkContext, QuantumContext等核心组件, 不参与非核心组件的功能
69
Quantum.Framework.Infrastructure
负责提供Ioc, AutoMapper, ScmRuntimeInfo, WorkContext, QuantumContext等核心组件, 不参与非核心组件的功能
70
Quantum.Framework.Infrastructure
负责提供Ioc, AutoMapper, ScmRuntimeInfo, WorkContext, QuantumContext等核心组件, 不参与非核心组件的功能
71
Quantum.Framework.Infrastructure
负责提供Ioc, AutoMapper, ScmRuntimeInfo, WorkContext, QuantumContext等核心组件, 不参与非核心组件的功能
72
Quantum.Framework.Infrastructure
负责提供Ioc, AutoMapper, ScmRuntimeInfo, WorkContext, QuantumContext等核心组件, 不参与非核心组件的功能
73
Quantum.Framework.Infrastructure
负责提供Ioc, AutoMapper, ScmRuntimeInfo, WorkContext, QuantumContext等核心组件, 不参与非核心组件的功能
77
Quantum.Framework.Infrastructure
负责提供Ioc, AutoMapper, ScmRuntimeInfo, WorkContext, QuantumContext等核心组件, 不参与非核心组件的功能
86
Quantum.Framework.Infrastructure
负责提供Ioc, AutoMapper, ScmRuntimeInfo, WorkContext, QuantumContext等核心组件, 不参与非核心组件的功能
96
Quantum.Framework.Infrastructure
负责提供Ioc, AutoMapper, ScmRuntimeInfo, WorkContext, QuantumContext等核心组件, 不参与非核心组件的功能
118
Quantum.Framework.Infrastructure
负责提供Ioc, AutoMapper, ScmRuntimeInfo, WorkContext, QuantumContext等核心组件, 不参与非核心组件的功能
156
Quantum.Framework.Infrastructure
负责提供Ioc, AutoMapper, ScmRuntimeInfo, WorkContext, QuantumContext等核心组件, 不参与非核心组件的功能
173
Quantum.Framework.Infrastructure
负责提供Ioc, AutoMapper, ScmRuntimeInfo, WorkContext, QuantumContext等核心组件, 不参与非核心组件的功能
179

Release notes are at https://github.com/autofac/Autofac/releases

Version Downloads Last updated
8.2.1 5 04/04/2025
8.2.0 11 12/26/2024
8.1.1 16 11/02/2024
8.1.0 15 11/11/2024
8.0.0 341 01/29/2024
7.1.0 10 11/14/2024
7.0.1 14 04/24/2023
7.0.0 9 11/14/2024
6.5.0 36 01/19/2023
6.4.0 14,260 10/11/2022
6.1.0 8 11/14/2024
6.0.0 101 11/03/2022
5.2.0 14 06/21/2022
5.1.0 7 11/14/2024
4.9.3 16 02/20/2023
4.8.0 10 11/14/2024
4.7.1 23 06/06/2022
4.7.0 16 11/13/2024
4.6.1 17 05/20/2024
4.6.0 10 11/14/2024
4.5.0 9 11/14/2024
4.4.0 11 11/11/2024
4.2.0 14 11/03/2022
4.0.0-rc3-293 14 05/09/2024
4.0.0-rc3-286 11 11/14/2024
4.0.0-rc3-280 9 11/27/2024
4.0.0-rc2-240 11 11/14/2024
4.0.0-rc1-177 19 05/16/2024
4.0.0-beta8-157 8 11/12/2024
4.0.0-beta6-110 15 06/06/2022
4.0.0-alpha2 7 11/14/2024
4.0.0-alpha1 10 11/14/2024
3.5.2 10 11/14/2024
3.5.0 11 11/14/2024
3.4.0 10 11/14/2024
3.3.1 14 05/09/2024
3.3.0 10 11/12/2024
3.2.0 7 11/14/2024
3.1.5 10 11/10/2024
3.1.4 8 11/14/2024
3.1.3 8 11/14/2024
3.1.1 9 11/11/2024
3.1.0 10 11/14/2024
3.0.0-beta2 7 11/14/2024
3.0.0-beta 11 11/12/2024
2.6.3.862 13 11/14/2024
2.6.2.859 10 11/14/2024
2.6.1.841 9 11/14/2024
2.5.1.827 12 05/20/2024
2.4.5.724 16 05/09/2024
2.4.3.700 9 11/28/2024
2.2.4.900 9 11/14/2024