FintX
What FintX is
FintX is a native desktop gRPC test bench for functional and performance testing on 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. It can mock external gRPC services, including unary and streaming methods, with responses customized through C# scripting. Test data is generated from protobuf definitions using Faker.js/Bogus. To create 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. FintX stores data as text files on the local machine. Its free Community edition includes gRPC clients, request auto-save, request import and export, method tabs, a JSON editor, and projects. Professional is priced on request and Enterprise is priced on request. The linked privacy policy page contains placeholder text rather than substantive privacy details.
Who it suits
FintX suits developers who need a desktop tool for gRPC functional tests, load scenarios, and service mocks. It is available across Linux, macOS, and Windows, with a free Community edition and paid plans for additional test features.
What it does well
- Runs on Linux, macOS, and Windows.
- Supports unary and streaming service mocks.
- Offers incremental, constant, and burst load tests.
- Stores data as text files locally.
- Community edition is free forever.
What to know first
- Linked privacy policy contains placeholder text.
- Professional plan is priced on request.
- Enterprise plan is priced on request.
Limits
The free plan includes gRPC clients, request handling, method tabs, a JSON editor, and projects, but functional tests, visual diff, test collections, reports, and performance testing are listed under Professional at $100 per seat. Enterprise is listed at $995 and adds unlimited users.
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Free / Open Source | $0 / forever · Unlimited gRPC clients · auto-save requests · import/export requests · tabs per method · JSON editor · projects | Free |
| Professional | $100 / per seat · Everything in Free · functional tests · custom validation rules · visual diff · test collections · summarized reports · performance tests · real-time performance results | $100 |
| Enterprise | $995 / unlimited · Everything in Professional · unlimited users | $995 |
As fintx.dev lists them, read 29 Sept 2026. The maker's own page has the final word.
Getting started
- Visit https://fintx.dev/.
- Choose the free Community edition or a paid plan.
- Install the desktop application for Linux, macOS, or Windows.
- Provide a .proto file or the HTTP location of a gRPC Reflection Server to generate a client.
- Use the generated client and project tools to prepare requests and tests.
Verdict
FintX combines gRPC response validation, performance scenarios, mock services, and local data storage in a desktop application. The linked privacy policy does not provide substantive details, so readers should note that information gap.
Questions
Is FintX free?
Yes. FintX Community is free forever and includes unlimited gRPC clients, request auto-save, import and export, method tabs, a JSON editor, and projects.
How much do the paid plans cost?
Professional is listed at $100 per seat. Enterprise is listed at $995 for unlimited users.
Which platforms does FintX support?
FintX is a native desktop application for Linux, macOS, and Windows.
Can FintX connect through server reflection?
Yes. You can provide the HTTP location of a gRPC Reflection Server, or use a .proto file, to generate a gRPC C# client.
Where does FintX store data?
FintX stores data as text files on the local machine.
How can users contact the maker?
The maker directs questions and feature requests to its ticket system.
Facts from FintX's own pages
- Client generation
- Generated C# client code is compiled into an assembly and saved locally for reuse. · fintx.dev, 29 Sept 2026
- Community edition
- The maker says FintX Community is free forever. · github.com, 29 Sept 2026
- Functional testing
- It compares actual and expected responses and shows a visual diff. · fintx.dev, 29 Sept 2026
- Headquarters
- Singapore · fintx.dev, 28 Sept 2026
- Local data
- FintX stores data as text files on the local machine. · fintx.dev, 29 Sept 2026
- Mock services
- It can mock external gRPC services, including unary and streaming methods, with responses customized using C# scripting. · fintx.dev, 29 Sept 2026
- Native app
- The maker describes FintX as a native application. · fintx.dev, 29 Sept 2026
- Performance testing
- It supports incremental, constant, and burst load test scenarios. · fintx.dev, 29 Sept 2026
- Privacy
- The linked privacy policy page contains placeholder Lorem ipsum text rather than substantive privacy details. · fintx.dev, 29 Sept 2026
- Product
- FintX is a cross-platform gRPC test bench for functional and performance testing. · fintx.dev, 29 Sept 2026
- Protocol inputs
- FintX accepts a .proto file or the HTTP location of a gRPC Reflection Server to generate a gRPC C# class. · fintx.dev, 29 Sept 2026
- Support
- The maker directs users with questions or feature requests to create a ticket. · fintx.dev, 29 Sept 2026
- Test data
- It generates realistic test data from protobuf definitions using Faker.js/Bogus. · fintx.dev, 29 Sept 2026
Where FintX stands on Freedom251
- gRPC Tools#3 of 24