Analyze code quality

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On-the-fly code quality analysis is available in C#, VB.NET, XAML, ASP.NET, ASP.NET MVC, JavaScript, TypeScript, CSS, HTML, and XML. You'll know right away if your code needs to be improved.

Eliminate errors and code smells

Not only does ReSharper warn you when there's a problem in your code but it provides hundreds of quick-fixes to solve problems automatically. In almost every case, you can select the best quick-fix from a variety of options.

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Safely change the code base

Automated solution-wide code refactorings help you safely change your code base. Whether you need to revitalize legacy code or put your project structure in order, you can rely on ReSharper.

Instantly traverse the entire solution

You can instantly navigate and search through the whole solution. Jump to any file, type, or type member, or navigate from a specific symbol to its usages, base and derived symbols, or implementations.

Enjoy code editing helpers

Multiple code editing helpers including extended IntelliSense, hundreds of instant code transformations, auto-importing namespaces, rearranging code, and displaying documentation.

Comply with coding standards

Code style and formatting functionality with fine-tuned, language-specific settings will help you get rid of unused code and create a common coding standard for your team.

Code analysis

ReSharper extends Visual Studio with over 2200 on-the-fly code inspections for C#, VB.NET, ASP.NET, JavaScript, TypeScript and other technologies. For most inspections, ReSharper provides quick-fixes (light bulbs) to improve the code.

Find and remove unused code? Migrate your code to the latest C# version? Convert loops to LINQ at will? Find and prevent possible exceptions? Use a common naming standard? All that and a lot more code improvements are made possible with ReSharper's code analysis.

Refactorings

60+ refactorings and 450+ context actions help safely organize code and move it around the solution, distribute responsibility, decouple, decrease complexity, or simply use alternative language syntax.

Navigation and search

ReSharper helps instantly get to any code in a solution, no matter how large the solution is. It can also navigate you from any symbol to its related code such as implementations of a given interface, extension methods of a class, or usages of a field.

Code formatting and cleanup

Configure and apply code style based on your personal preferences or your team standard. Code style and formatting settings for C#, VB.NET, ASP.NET, JavaScript, TypeScript and other languages can be applied in any scope, from a selection to a solution.

Code generation

ReSharper can create a lot of code for you: from new files and classes to conditional blocks and GUIDs; from methods and properties required by an interface being implemented to equality checks and formatting members.

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dotUltimate is a single license that allows a single developer to use these JetBrains tools:

dotUltimate license also covers plugins for dotCover and dotTrace in Rider.

Why upgrade to ReSharper 2021.2

Code Analysis

There are several new inspections with quick-fixes, like Swap via deconstruction, Replace empty array creation with Array.Empty<T>, and Replace new EventArgs() with EventArgs.Empty. ReSharper now also takes into account the generated_code property from .editorconfig, allowing it to mark files or folders as generated code and exclude them from processing.

Nullable Reference Types

A huge update has arrived for nullable reference types support!

ReSharper indicates suppressions (!) that are no longer needed and that can be safely removed.

ReSharper has introduced a new refactoring to change nullability. It will update nullability annotations and suggest propagating the changes throughout your codebase.

There are also several new inspections with corresponding quick-fixes available when using JetBrains.Annotations attributes and nullable reference types are enabled.

Source Generator Support

In ReSharper 2021.2, many of the features available for manually-written code files are available for source-generated files, as well. We’ve improved editor support, enhanced the debugger, and added support for Solution-Wide Analysis (SWEA) and refactorings.

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I love ReSharper! Its code suggestions routinely help me write better C#/VB.NET code.

All I can say is I love it. If you don't use ReSharper, drop what you are doing and go out and buy it!

ReSharper is an awesome tool. If you're using it you probably agree and if you aren't you should be. The productivity gains are incredible.

The ultimate Agile tool is ReSharper. Refactoring is just so darn easy that change isn't scary.

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Visual Studio Student Subscription

This article explains how to locate, claim, and export product keys from https://my.visualstudio.com/productkeys. For more information about activating a product with a key, retail and volume license versions of keys, and daily product key claim limits, visit the product keys overview.

Locating and claiming product keys

You must be signed in to your Visual Studio subscription to view your product keys. Individual product keys are found by selecting the blue Get Key link for a particular product on the Downloads page as shown below. All keys are also available in aggregate on the Product Keys page. When multiple keys exist for a single product, notes will be displayed on the Notes column for the download to assist you in identifying which key should be used.

Some products bundle multiple editions of the product into a single download. In these cases, the product key entered determines which edition of the product is installed.Some keys are provided automatically, such as “static” keys, which you can use as many times as needed because activation is not required. Other keys must be claimed by selecting the Get Key link for the product.

Various key types are available, depending on the product.

Product key types

Key Type	Description
Not Applicable	No key is needed to install this product.
Retail	Retail keys allow multiple activations and are used for retail builds of the product. In many cases, 10 activations are allowed per key, though often more are allowed on the same machine.
Multiple Activation	A Multiple Activation Key (MAK) enables you to activate multiple installations of a product with the same key. MAKs are used with Volume Licensing versions of products. Typically, only one MAK key is provided per subscription.
Static Activation Key	Static activation keys are provided for products that do not require activation. They can be used for any number of installations.
Custom Key	Custom keys provide special actions or information to activate or install the product.
VA 1.0	Multiple activation keys, similar to a MAK.
OEM Key	Original Equipment Manufacturer keys that allow multiple activations.

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