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NSubstitute pricing

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Developer tools · Vendor site 2026-10-04

NSubstitute is an open-source .NET mocking library focused on Arrange-Act-Assert tests with readable syntax for stubs, spies, and substitutes. The official docs explain how to configure return values and assert received calls without heavy lambda noise compared with older mocking frameworks.

Updated 2026-10-04View sources
Official website
Category
Developer tools
Free access
NSubstitute is free open-source software distributed via GitHub and the project documentation site.
API access
Not confirmed

Understand the total cost

NSubstitute pricing & plans

Free

Free

NSubstitute is free open-source software distributed via GitHub and the project documentation site.

Access
NSubstitute is free open-source software distributed via GitHub and the project documentation site.

Price history

No retained pricing changes yet. A current price alone does not establish a historical trend.

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Facts apply to the named version and check date. Send a sourced correction if something changed.

NSubstitute pricing questions

Is NSubstitute free?

Yes. NSubstitute has an ongoing free plan. NSubstitute is free open-source software distributed via GitHub and the project documentation site.

How much does NSubstitute cost?

NSubstitute is listed as free. No paid plan with a published price was found.

Does NSubstitute have an API?

We could not confirm API access for NSubstitute.