FintX

FintX is a native desktop gRPC test bench for functional and performance testing, with versions for Linux, macOS, and Windows. Functional tests compare actual responses with expected ones and display a visual diff. Performance tests support incremental, constant, and burst load scenarios. FintX can mock external gRPC services, including unary and streaming methods, with responses customized through C# scripting. It generates test data from protobuf definitions using Faker.js/Bogus. To generate a gRPC client, users can provide a .proto file or the HTTP location of a gRPC Reflection Server; generated C# client code is compiled into an assembly and saved locally for reuse. The application stores data as text files on the local machine. The maker says the Community edition is free forever. Professional is priced on request and adds functional tests, custom validation rules, visual diffs, test collections, summarized reports, and performance tests with real-time results. Enterprise is priced on request for unlimited users. The linked privacy policy page contains placeholder text rather than substantive privacy details.

FintX combines response comparison, service mocking, and load testing in a desktop gRPC workflow. Its local text-file storage and the limited privacy-policy details are worth considering alongside the plan terms.

FintX may suit developers who need a desktop tool for testing gRPC services across the listed operating systems. The free edition may suit users who need its included client, request, JSON editor, and project features.