Top 20 DotNet Libraries Developers Should Use

dotnet libraries

This article is intended for ASP.NET core developers who want to create a fully functional.NET core application. It is a curated and handy list of the most used and popular DotNet libraries. You will find the GitHub reference URL for dotnet core libraries and look at the.NET community’s stars. Also, by using these amazing Asp.NET core Libraries you can boost your development process.

The web and mobile app development sector is thriving, and the digital populace is growing alongside it. We’ve witnessed a flurry in the industry, with increased competition among developers and entrepreneurs. Every company wants to be ahead of the competition, and the key to doing so is to identify a technology that meets your customers’ needs. Therefore, using the best Asp.NET core Libraries is crucial if you are working in DotNet. Now let’s check what is DotNET.

What exactly is DotNet Core?

It is a cross-platform and lightweight DotNet framework for developing commercial applications and services. Net core is a combination of the following components: GC, Runtime, AOT, Base Class Library, JIT, ASP.NET, ML.NET, C#, F#, WPF, WinForms, Entity Frameworks, and Xamarin.

Microsoft met the criteria 18 years ago and has since provided user-friendly and customer-centric services. Microsoft’s .NET framework has been a boon, and the even newer.NET Core is the most significant and useful upgrade of the framework, providing dynamic, powerful, and feature-rich websites, mobile apps, and web-based programs. For inspiration, you can check the .NET Open Source Projects.

When an entrepreneur wants to create a powerful, highly functional, and safe web application, the.NET framework is their first choice. Despite the fact that it has been nearly 20 years since Microsoft first introduced this framework, the DotNet framework continues to provide value. If you are new to Asp.NET then do refer to the best Asp.NET Core Tutorial to learn in depth.

The dotNET core framework has grown at an unanticipated rate in the last few years. Besides, with the fame, .NET core gained one rank over the previous year, and statistics reveal that developers would prefer.NET core libraries more than they did last year. Based on the reputation and popularity of the.net core framework, the framework was listed as the first pillar in the Hall of Fame in 2018.

Now, let’s head toward the list of the best Asp.NET core Libraries.

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The Best DotNET Libraries To Use

Well, libraries as you know help to boost the workflow by providing the essential components. Therefore, while working with Asp.NET Core you will need the best DotNET Libraries. To help you with it, we have curated this list of the best DotNet core libraries.

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Now, let’s start the list of Asp.NET core Libraries.

Polly 10.9k

One of the best DotNet libraries to use. Polly is a.NET resilience and transient-fault-handling library that enables programmers to fluently and safely define policies like Retry, Circuit Breaker, Timeout, Bulkhead Isolation, and Fallback. Besides, Polly targets.NET Standard 1.1 and 2.0+ as of version 6.0.1.

In addition, Polly can safeguard your resources, stop you from sending requests to broken services, retry failed requests, cache earlier results, terminate lengthy queries, and, when all else fails, return a default value with only a few lines of code. Additionally, it supports sync and Async calls and is thread-safe.

Besides, this DotNet core library also provides two circuit breaker implementations: the Basic Circuit Breaker, which trips after a predetermined number of faults that happen consecutively, and the Advanced Circuit Breaker, which trips after a predetermined number of faults that happen within a specific time frame during which a sufficient number of requests were made.

Features:

  • Wait & Retry Policy
  • Circuit breakers
  • Policy Wraps
  • Timeout
  • Bulkhead Isolation policy and much more
AutoMapper 8.9k

The next one on the list of the best DotNet Libraries is Automapper. Well, mapping code is boring, and testing mapping code is even more boring. That’s where Automapper comes to the rescue. AutoMapper provides a simple configuration of types, as well as simple testing of mappings. It converts an input object of one kind into an output object of another type, object-object mapping functions.

The interesting thing about AutoMapper is that it offers some intriguing conventions to remove the tedious task of figuring out how to map type A to type B. To map two types, essentially no setting is required as long as type B adheres to AutoMapper’s defined norm.

In an application, mapping can happen in a variety of locations, although it typically happens at the borders of levels, such as between the UI/Domain and Service/Domain layers. Object-object mapping creates separated models where issues for each layer can only affect types in that tier because concerns from one layer frequently conflict with those from another.

Features:

  • Custom Type Converters
  • Custom Value Resolvers
  • Conditional Mapping
  • Null Substitution
  • Value Converters
  • Value Transformers
  • Before and After Map Action and many more.
SignalR 8.7k

Modern apps are meant to provide up-to-date content without requiring a refresh. Add real-time capabilities to your games, dashboards, and other applications. Well, Real-time functionality refers to the capacity of your server-side code to instantly push content to associated clients. That’s where you need the SignalR. This DotNet library makes it incredibly simple. SignalR handles connection management automatically and lets you broadcast messages to all connected clients simultaneously, like a chat room.

In addition to your pages and APIs, SignalR hubs can be added to your ASP.NET app in C# code. Besides, other ASP.NET capabilities like dependency injection, authentication, authorization, and scalability are effortlessly integrated with the basic programming style. SignalR also enables completely new types of applications that require high-frequency updates from the server, such as real-time gaming.

Features:

  • Handles connection management automatically.
  • Sends messages to all connected clients simultaneously. For example, a chat room.
  • Sends messages to specific clients or groups of clients.
  • Scales to handle increasing traffic.
MediatR 8.3k

The mediator pattern in software engineering describes an entity that captures how a group of things interact. Because it has the potential to change how the program behaves while executing, this pattern is regarded as a behavioral pattern.

MadiateR is a straightforward.NET mediator implementation. With intelligent dispatching using C# generic variance, it enables request/response, commands, queries, alerts, and events, both synchronous and async.

You can consider MediatR as an “in-process” Mediator implementation that aids in the development of CQRS systems. MediatR is one of the useful DotNet Libraries. Additionally, you can use it for all communication between the user interface and the data repository.

BenchmarkDotNet 7.9k

You can track the performance of techniques, turn them into benchmarks, and share reproducible measurement experiments with the aid of BenchmarkDotNet. It isn’t more difficult than writing unit tests! It works a lot of magic behind the scenes, and the perfolizer statistical engine ensures accurate and dependable results.

BenchmarkDotNet guards you against common benchmarking errors and alerts you if your benchmark design or collected measurements are flawed. All of the key details of your experiment are highlighted in the findings, which are presented in a simple format. The.NET Foundation and 6800+ projects, including.NET Runtime, have adopted and endorsed the library.

It takes time and demands attention, expertise, and understanding to analyze performance data. BenchmarkDotNet handles the bulk of this analysis on your behalf and delivers the findings in an approachable format.

Features:

  • Simplicity
  • Automation
  • Reliability
  • Friendliness
Hangfire 7.7k

An incredibly simple method for running recurring, delayed, and fire-and-forget tasks inside ASP.NET applications. Besides, this one is one of the most recommended dotNET libraries that support long-running and short-running, CPU and I/O heavy jobs. Furthermore, there is no need for Windows Services or Task Scheduler. supported by MSMQ, SQL Azure, Redis, and SQL Server.

To reliably manage background jobs and run them on shared hosting, dedicated hosting, or in the cloud, Hangfire offers a single programming architecture. For the following scenarios, you can start with a basic setup and gradually increase the computational power for background tasks: Mass notifications/newsletters, Batch import from XML, CSV, or JSON, Creation of archives, Firing off webhooks, Deleting users, Building different graphs, Image/video processing, etc.

Features:

  • Simple
  • Persistent
  • Transparent
  • Reliable
  • Distributed
  • Extensible
FluentValidation 7.5k

Validation is a process to validate and check the data inserted by the user in the view. ASP.NET MVC provides various mechanisms for validation like Remote Validation, Validation using Data Annotations, Fluent Validation, and Custom Validation.

Well, Fluent Validation is a .NET library for building strongly-typed validation rules. In order to validate models, FluentValidation offers a fantastic alternative to Data Annotations. It improves control over validation rules, makes them simple to read and test, and allows for a significant separation of concerns. The validation is performed using the Lambda expression. Fluent Validation is useful when you are creating some advanced and complex validation for the user data.

It is an open-source framework that enables you to develop and manage validations that are clear and simple. Additionally, it functions on outside models to which you do not have access. The model classes become clear and readable as a result.

Features:

  • Built-in Validators
  • Custom validators
  • Localization
  • Test extensions
  • Asynchronous validation
  • Transforming Values
nopCommerce 7.4k

ASP.NET Core eCommerce software. nopCommerce is a free and open-source shopping cart. Besides, you can run it on Windows, Linux, or Mac. Additionally, this .NET Open Source Project supports multi-factor authentication out of the box.

The nopCommerce can be termed as dotNet libraries as well. It adheres to the finest security procedures and well-known software patterns. The source code can be altered in any way. It is simple to create unique functionality and adhere to any business needs thanks to pluggable and transparent architecture.

NopCommerce offers excellent performance, stability, and security by utilizing the most recent Microsoft technology. Azure and web farms are also completely compatible with nopCommerce.

Features:

  • Runs on .NET 6 with an MS SQL 2012 (or higher) backend database.
  • Cross-platform compatibility
  • Supports Docker and MySQL out of the box, so you can easily run nopCommerce on a Linux machine.
  • PostgreSQL database Support
  • All methods in nopCommerce are async.
Ocelot 7.2k (Not sure)

Ocelot is a .NET API Gateway. People who are using.NET and have a service-oriented architecture or microservices that need a single point of entry into their system are the target audience for this project. However, it will function on every platform that ASP.NET Core supports and be compatible with anything that speaks HTTP.

Up until it encounters a request builder middleware, it manipulates the HTTP Request object into a state indicated by its settings. There, an object called an HTTP Request Message is created and used to send a request to a service further down the line. The final step in the Ocelot pipeline is the middleware that submits the request. It doesn’t make a middleware call after that. The response from the downstream service is retrieved as the requests go back up the Ocelot pipeline.

Features:

  • Routing
  • Request Aggregation
  • Service Discovery with Consul & Eureka
  • Service Fabric
  • Kubernetes
  • WebSockets
  • Authentication
  • Authorization and many more.
spectre.console 5.4k

SpectreConsole is a.NET library that makes it simpler to develop stunning console programs. Besides, it also detects the capabilities of the current terminal and downgrades colors as needed.

This Asp.NET core Library offers support for rendering complex command line elements like tables, trees, and progress bars in addition to the ability to handle input arguments with ease. Furthermore, it also offers ways to ask the user for information, whether it be in text form or by selecting an option.

Features:

  • Written with unit testing in mind.
  • Supports tables, grids, panels, and a rich inspired markup language.
  • Also, supports the most common SRG parameters when it comes to text styling such as bold, dim, italic, underline, strikethrough, and blinking text.
  • Supports 3/4/8/24-bit colors in the terminal.
Autofac 3.9k

The next one on the list of DotNet libraries is Autofac. It is an IoC container for Microsoft. NET. Besides, it controls interclass dependencies so that applications remain flexible even as they increase in size and complexity. By considering common.NET classes as components, this is accomplished. Furthermore, it also provides activation events to let you know when components are being activated or released, allowing for a lot of customization with little code. Therefore, it is one of the most recommended Asp.NET core Libraries.

Features:

  • Register Components
  • Express Dependencies
  • Flexible Module System
  • Simple Extension Points
Dapper 3.6k

Dapper is an ORM (Object-Relational Mapper), or more specifically a Micro ORM, that we may utilize in our applications to interact with the database. We can write SQL statements in Dapper just like we would in the SQL Server. Dapper performs incredibly well since it doesn’t convert DotNET-written SQL queries. It supports both synchronous and asynchronous method executions.

Dapper is SQL Injection safe, which is crucial to know since we may utilize parameterized queries something we ought to do constantly. Besides, it supports a number of different database providers, which is another crucial feature. In addition, this is one of the prominent DotNet libraries that offers practical extension methods to query our database and extends the IDbConnection class in ADO.NET. Naturally, we must create queries that work with our database provider.

Features:

  • It can be used with any .NET project.
  • Quite lightweight, high performance.
  • Drastically reduces the database access code.
  • Focus on getting database tasks done instead of being full-on ORM. We cover more on this
  • Work with any database – SQL Server, Oracle, SQLite, MySQL, PostgreSQL, etc.
  • For an existing database, using Dapper is an optimal choice.
Blazorise 2.4k

Built on top of Blazor, Blazorise is a component library that supports CSS frameworks like Bootstrap, Bulma, AntDesign, and Material. Blazorise comes with 80+ Blazor UI components that help you build consistent UIs fast. The theme can be customized to match your brand. Well, it is not a dotNET core library completely but it can be used with .NET Core easily.

FluentEmail 2.3k

FluentEmail is an open-source.NET library that you can use to quickly add the full email sending capability to your DotNet program. It has pre-installed Razor or Liquid templates and built-in providers for the most widely used email senders, including SendGrid and Mailgun.

The ideal method to use FluentEmail is to use dependency injection to specify your sender and template preferences. The.NET Dependency Injection classes that come standard with the platform have good out-of-the-box support.

Features:

  • The API is so simple that autocomplete (almost) writes your code for you!
  • Well-tested providers for the popular email senders and template engines are available out of the box (keep reading to see examples)
  • Solid dependency injection keeps your code clean and allows you to easily write tests or switch out email options for different tenants/environments
Cecil 2.3k

A DotNet library called Cecil is used to inspect ECMA CIL-formatted programs and libraries. With Cecil, you can load already-existing managed assemblies, browse through all of their contained types, make changes to them instantly, and then save the updated assembly back to the disc.

You can use Cecil to:

  • Analyze .NET binaries using a simple and powerful object model, without having to load assemblies to use Reflection.
  • Modify .NET binaries, add new metadata structures and alter the IL code.
AppMetrics 2.1k

The next one in the list of Asp.NET core libraries is AppMetrics. It is an open-source, cross-platform.NET library. It is useful to log application metrics. Both.NET Core and the complete.NET framework are compatible with App Metrics.

By sampling and aggregating data in memory and offering extensibility points to flush measurements to a repository at a predetermined frequency, App Metrics abstracts away the underpinning repository of your metrics, such as InfluxDB, Graphite, Prometheus, etc.

Besides, app Metrics offers a range of metric kinds to track things like the frequency of requests, the number of user logins over time, the amount of spare RAM, the time it takes to run a database query, and more. Gauges, Counters, Meters, Histograms, Timers, and Application Performance Indexes Apdex is among the supported metrics kinds.

With App Metrics you can:

  • Any.NET application, such as a Windows Service, MVC Site, Web API, etc., can collect application metrics.
  • Measure each endpoint’s performance and error rates automatically in an MVC or Web API project.
  • Automatically calculate the request rate and error rate per client when protecting an API with OAuth2.
  • Select the dashboard you want to use to display the metrics you have recorded and where to save them.
  • Support Push and Pull based metrics collecting via TSDB-specific reporting extensions and delivering metrics in the proper format over HTTP
  • Support sending metrics in the proper format to a unique HTTP endpoint.
  • Encourage writing measurements to files in the format needed for collection by a metrics agent.
Cscore 1.9k

CS Core is a sophisticated audio library created in C#. offers a lot of features. Playing and recording audio, encoding and decoding audio files and streams, and real-time processing of audio data (e.g. applying custom effects during playback, creating visualizations, etc). The options are essentially limitless. Besides, this dotnet library is based on a very extensible architecture that allows you to make it fit your needs without any major effort.

Features:

  • Realtime audio processing
  • Codecs: MP3, WAVE (PCM, IeeeFloat, GSM, ADPCM,…), FLAC, AAC, AC3, WMA, Raw data, OGG-Vorbis
  • FFmpeg support
  • Speaker Output: WaveOut, DirectSoundOut (realtime streaming), WASAPI (loop- and event-callback + exclusive mode available), XAudio2
  • Recording
  • DSP Algorithms
SharpCompress 1.8k

By compressing the contents of a folder into a new ZIP file, SharpCompress allows.NET developers to build a ZIP file. One of the most popular compression and archiving file formats is the ZIP format. It facilitates file size reduction and allows for the archiving of several files and directories into a single file.

Developers can also extract files from a ZIP file using the API. It will cycle through each file in the archive to save it to a directory when you specify which file you wish to extract. Besides, it offers support for non-seekable streams, which enables on-the-fly processing of big files, which is the key feature (i.e. download stream).

Furthermore, SharpCompress has a number of crucial capabilities, including the ability to extract all files from a RAR file to a directory and create a zip archive from all of the files in the directory. Use ReaderFactory to open the entry stream and automatically recognize the kind of archive, Use ReaderFactory to open the entry stream, auto-detect the archive type, and many other things. Therefore, It is one of the best Asp.NET Libraries to use.

BootstrapBlazor 1.1k

This is one of the best carefully constructed, Bootstrap-based Asp.NET core Libraries. Besides, it offers 100 different varieties of frequently used components to provide you with an exceptional sense for quick development projects. Furthermore, it supports WebAssembly-based client-side and SignalR-based server-side UI event interaction.

Features:

  • Enterprise-class UI designed for web applications.
  • A set of high-quality Blazor components out of the box.
  • Supports Progressive Web Applications (PWA).
  • Build with C#, a multi-paradigm static language for an efficient development experience.
  • .NET Standard 2.1 based, with direct reference to the rich .NET ecosystem.
  • Supports NET5. (Server-Side, WASM)
  • Seamless integration with existing ASP.NET Core MVC and Razor Pages projects.

Conclusion:

.NET Core is holding a strong future. Therefore, the usage of this fantastic framework is increasing day by day. Due to this reason, companies are adopting Asp .NET Core for their project. Well, if you are starting with the .NET core project then this collection of DotNet Libraries will be surely helpful to you.

We have included the best Asp.NET Libraries here in this collection. Each library offers useful & essential components. Also, each .NET library offers valuable features as well. Once you are sure about your project requirements, you can easily pick the suitable one.

In case we have missed any Asp.NET Libraries, let us know in the comment section. We hope you find this collection helpful & noteworthy. Also, don’t forget to share this list with your colleagues.

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