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NSubstitute Alternatives
Similar projects and alternatives to NSubstitute
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ReSharper
ReSharper is now available in VS Code and Cursor. ReSharper brings a professional toolset for C# developers backed by over 20 years of experience, enterprise-grade security, SOC 2 compliance, and the trust of companies worldwide.
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
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ClosedXML
ClosedXML is a .NET library for reading, manipulating and writing Excel 2007+ (.xlsx, .xlsm) files. It aims to provide an intuitive and user-friendly interface to dealing with the underlying OpenXML API.
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AutoFixture
AutoFixture is an open source library for .NET designed to minimize the 'Arrange' phase of your unit tests in order to maximize maintainability. Its primary goal is to allow developers to focus on what is being tested rather than how to setup the test scenario, by making it easier to create object graphs containing test data.
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vimium-c
A keyboard shortcut browser extension for keyboard-based navigation and tab operations with an advanced omnibar
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Fluent Assertions
A very extensive set of extension methods that allow you to more naturally specify the expected outcome of a TDD or BDD-style unit tests. Targets .NET Framework 4.7, as well as .NET Core 2.1, .NET Core 3.0, .NET 6, .NET Standard 2.0 and 2.1. Supports the unit test frameworks MSTest2, NUnit3, XUnit2, MSpec, and NSpec3.
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ReportGenerator
ReportGenerator converts coverage reports generated by coverlet, OpenCover, dotCover, Visual Studio, NCover, Cobertura, JaCoCo, Clover, gcov or lcov into human readable reports in various formats.
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Bogus
:card_index: A simple fake data generator for C#, F#, and VB.NET. Based on and ported from the famed faker.js.
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
NOTE:
The number of mentions on this list indicates mentions on common posts plus user suggested alternatives.
Hence, a higher number means a better NSubstitute alternative or higher similarity.
NSubstitute discussion
NSubstitute reviews and mentions
Posts with mentions or reviews of NSubstitute.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2024-08-22.
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BuddyInjector
To substitute the object creating a mock, we'll use the NSubstitute package. This article will not cover how to use the NSubstitute, but to explain the basics we say to the code "When someone calls method X, returns the value Y", so the result is a fake value.
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Unit Testing in .NET: Tools and Techniques
Libraries like Moq or NSubstitute are popular choices for mocking in .NET.
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What am I missing about interfaces?
a. you might do so purely out of argo cult, i.e. because someone told you this was the right thing to do™, and that's a silly exercise. b. you could also be doing this for a good reason: to use the interface with a mocking tool like NSubstitute
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The Moq-gate: You Either Die a Hero...
When comparing it to one of its most well-known alternatives, NSubstitute, which has "only" reached 85.6 million downloads, it is fair to say that Moq is the most widely used mocking library in the .NET ecosystem.
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Since v4.20, Moq is harvesting email addresses
Maintainer rejected the PR. They have temporarily disabled the integration in https://github.com/moq/moq/pull/1375 but kept the SponsorLink project reference in the source code. It seems like their intent is to re-enable the integration at a later point :(
NSubstitute [0] might be an alternative. Or to fork Moq pre-4.20.
[0] https://nsubstitute.github.io/
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Setting up a simple testing project with C#
In terms of mocking there are several frameworks you can use, but I've mainly relied on Moq and NSubstitute. Within this demo, I'm going to use NSubstitute as I've found it a little easier to use.
- [AskJS] Can we talk about Stubs, Spies and Mocks in JavaScript and what a mess they are?
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Coincidence? I think not
it will change the URL from https://github.com/nsubstitute/NSubstitute to https://github.dev/nsubstitute/NSubstitute (or you can just nav there yourself).
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I need a C# crash course for experienced developers
NSubstitute
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Moq vs NSubstitute: syntax cheat sheet
đź”— NSubstitute documentation | NSubstitute
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A note from our sponsor - SaaSHub
www.saashub.com | 15 Aug 2026
Stats
Basic NSubstitute repo stats
13
2,970
7.9
5 days ago
nsubstitute/NSubstitute is an open source project licensed under GNU General Public License v3.0 or later which is an OSI approved license.
The primary programming language of NSubstitute is C#.
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