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FintX

fintx.dev

Free plan WindowsmacOSLinux
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Spec score 7.9 #12 of 24 in gRPC Tools

What it is

FintX is a native desktop gRPC test bench for functional and performance testing, available on Linux, macOS and Windows. Functional tests compare actual responses with expected responses and show a visual diff. Load testing supports incremental, constant and burst 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 create a gRPC client, users can supply 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. Data is stored as text files on the local machine. The free Community plan includes unlimited gRPC clients, request auto-save, import and export, method tabs, a JSON editor and projects. Professional is $100 per seat and adds functional tests, validation rules, visual diffs, test collections, summarized reports and performance testing. Enterprise is $995 for unlimited users. The linked privacy policy contains placeholder text rather than substantive privacy details.

Spec sheet

Product
FintX is a cross-platform gRPC test bench for functional and performance testing.Read 29 Sep 2026 · fintx.dev
Privacy
The linked privacy policy page contains placeholder Lorem ipsum text rather than substantive privacy details.Read 29 Sep 2026 · fintx.dev
Support
The maker directs users with questions or feature requests to create a ticket.Read 29 Sep 2026 · fintx.dev
Headquarters
SingaporeRead 28 Sep 2026 · fintx.dev
Client generation
Generated C# client code is compiled into an assembly and saved locally for reuse.Read 29 Sep 2026 · fintx.dev
Community edition
The maker says FintX Community is free forever.Read 29 Sep 2026 · github.com
Functional testing
It compares actual and expected responses and shows a visual diff.Read 29 Sep 2026 · fintx.dev
Local data
FintX stores data as text files on the local machine.Read 29 Sep 2026 · fintx.dev
Mock services
It can mock external gRPC services, including unary and streaming methods, with responses customized using C# scripting.Read 29 Sep 2026 · fintx.dev
Native app
The maker describes FintX as a native application.Read 29 Sep 2026 · fintx.dev
Performance testing
It supports incremental, constant, and burst load test scenarios.Read 29 Sep 2026 · fintx.dev
Protocol inputs
FintX accepts a .proto file or the HTTP location of a gRPC Reflection Server to generate a gRPC C# class.Read 29 Sep 2026 · fintx.dev
Test data
It generates realistic test data from protobuf definitions using Faker.js/Bogus.Read 29 Sep 2026 · fintx.dev

Plans and prices

Free / Open Source Free $0 / forever Unlimited gRPC clients · auto-save requests · import/export requests · tabs per method · JSON editor · projects Read 29 Sep 2026 · fintx.dev
Professional Priced on request $100 / per seat Everything in Free · functional tests · custom validation rules · visual diff · test collections · summarized reports · performance tests · real-time performance results Read 29 Sep 2026 · fintx.dev
Enterprise Priced on request $995 / unlimited Everything in Professional · unlimited users Read 29 Sep 2026 · fintx.dev

Every FintX plan and price →

Strong points and limits

Strong points

  • Runs on Linux, macOS and Windows
  • Free plan includes unlimited gRPC clients
  • Supports unary and streaming service mocks
  • Performance tests offer three load scenarios
  • Stores data as local text files

Limits

  • Professional costs $100 per seat
  • Enterprise costs $995 for unlimited users
  • Linked privacy policy has placeholder text

Who it suits

FintX suits developers who need a desktop tool to test gRPC clients, compare responses, simulate external services or run load scenarios. Its local text-file storage may also suit users who want test data kept on their machine.

Verdict

FintX covers functional checks, service mocks and performance scenarios in a native desktop application. Its free plan is substantial, but the paid tiers have listed prices and the privacy policy provides no substantive details.

Where Specifiction places it

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