Bogus VS NBuilder

Compare Bogus vs NBuilder and see what are their differences.


:card_index: A simple fake data generator for C#, F#, and VB.NET. Based on and ported from the famed faker.js. (by bchavez)


Rapid generation of test objects in .NET (by garethdown44)
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Bogus NBuilder
27 1
8,208 52
- -
8.3 0.0
about 1 month ago about 8 years ago
C# C#
GNU General Public License v3.0 or later -
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
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For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.


Posts with mentions or reviews of Bogus. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2024-01-06.
  • Bogus custom Dataset
    2 projects | | 6 Jan 2024
    Bogus NuGet package is fake data generator which can be helpful for populating tables in a database and testing purposes. If a database is not used and Bogus populates list of data each time an application runs, the data is random, never the same. Also, the random data generated by Bogus may not meet a developer’s requirements.
  • C# User-defined explicit and implicit conversion operators
    2 projects | | 1 Jan 2024
    A list is populated with NuGet package Bogus.
  • Windows form move items up/down in ListView and more
    2 projects | | 22 Dec 2023
    Other project either mocked data using NuGet package Bogus or a json file.
  • Best practices for organising Mock Data & Repositories in Testing
    3 projects | /r/dotnet | 2 Jun 2023
    To do all this you need test though...and that's where ]Bogus]( and Auto Bogus come in handy. They both generate semi random test data that you can use to populate whatever method you've decided to use. You can setup rules so for specific fields, they have built in generators for common things like names and addresses. Auto Bogus can be used to populate large/complicated objects with data automatically (it can be slow if you don't use .WithRecursiveDepth() or.WithTreeDepth() )
  • Do you guys mock everything in your Unit Tests?
    5 projects | /r/csharp | 12 Apr 2023
    Bogus - For creating fake data Verify - Snapshot testing for .NET MELT - For testing ILogger usage Stryker - Mutation Testing for .NET TestContainers - run docker programmatically in integration tests
  • WinForms communicate between forms
    2 projects | | 9 Apr 2023
    To keep things interesting Bogus library is used to create a Person instance.
  • The art of Deconstructing
    2 projects | | 12 Feb 2023
    Usage with mocked data using Bogus NuGet package.
  • Using EF Core and Bogus
    2 projects | | 21 Jan 2023
    Going forward, the secret to knowing were to find data is to read Bogus information in the readme file which goes into depth were to find paths to generate data. This is very important as you can clash with their classes e.g. you create a Person class and guess what, Bogus has a Person class. This is were knowing how to work with using statements and using statements with aliasing.
  • Learn DateOnly & TimeOnly
    7 projects | | 15 Jan 2023
    Code samples for which as of version 13.0.2 now supports DateOnly and TimeOnly. Three code samples are used to show interactions with Bogus and Microsoft.Data.SqlClient which is most likely used to work with json data.
  • Is there a tool that could be used to generate fake unit test cases automatically for code coverage? (read description before downvoting)
    2 projects | /r/dotnet | 19 May 2022
    In terms of generating test cases, I've come across this before:


Posts with mentions or reviews of NBuilder. We have used some of these posts to build our list of alternatives and similar projects.

We haven't tracked posts mentioning NBuilder yet.
Tracking mentions began in Dec 2020.

What are some alternatives?

When comparing Bogus and NBuilder you can also consider the following projects:

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.

faker-cs - C# port of the Ruby Faker gem (

Moq - Repo for managing Moq 4.x [Moved to:]

FakeItEasy - The easy mocking library for .NET

GenFu - GenFu is a library you can use to generate realistic test data. It is composed of several property fillers that can populate commonly named properties through reflection using an internal database of values or randomly created data. You can override any of the fillers, give GenFu hints on how to fill them.

NSubstitute - A friendly substitute for .NET mocking libraries.

xUnit - is a free, open source, community-focused unit testing tool for .NET.

FsCheck - Random Testing for .NET

NUnit - NUnit Framework

SpecFlow - #1 .NET BDD Framework. SpecFlow automates your testing & works with your existing code. Find Bugs before they happen. Behavior Driven Development helps developers, testers, and business representatives to get a better understanding of their collaboration