https://github.com/requestly/requestly/
GitHub - requestly/requestly: Open-Source HTTP Interceptor & Mocking Tool ยท GitHub
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https://www.mockaroo.com/
Mockaroo - Random Data Generator and API Mocking Tool | JSON / CSV / SQL / Excel
A free test data generator and API mocking tool - Mockaroo lets you create custom CSV, JSON, SQL, and Excel datasets to test and demo your software.
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https://www.telerik.com/products/mocking.aspx
Complete C# Mocking Tool for Unit Testing | Telerik JustMock
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https://Www.Telerik.com/products/mocking.aspx
Complete C# Mocking Tool for Unit Testing | Telerik JustMock
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https://insomnia.rest/features/api-mocking
Open Source API Mocking Tool - Insomnia
Leading Open Source API Development Platform for HTTP, REST, GraphQL, gRPC, SOAP, and WebSockets
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https://www.fakeurl.dev/
FakeURL - Free Online API Mocking Tool | Mock API Generator
Generate mock APIs instantly without registration. Supports custom status codes, delayed responses, JSON data, and HTTP headers - perfect for frontend...
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