Sinon.js
OPEN SOURCE
Standalone test spies, stubs, and mocks
About
Sinon.js is a standalone test spies, stubs, and mocks that provides tools for testing JavaScript code. It offers various testing features and integration with modern web technologies.
Pricing
Pricing Type
Open Source
Free tier available
Billing
One-time payment
Last checked: February 17, 2026
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Key Facts
Categories
Platforms
Mac
Windows
Linux
Company
Sinon.js
Founded
Founded in 2010
Country
Global
Language
English