Free and open first
Best gRPC Tools in 2026
When working with gRPC services, you may need tools for exploring interfaces, testing behavior, and fitting work into a delivery process. Compared on CI integration, deployment model, server reflection, and gRPC-Web support, these entries also cover mock servers, load testing, and Protobuf editors. grpcui, Kreya, and Evans are among the tools shown. Free-plan availability and paid-from pricing provide cost context alongside those capabilities. Consider which combination of service exploration, testing, and integration features fits your workflow, using the published criteria to compare the options for your gRPC work.
- 24 apps
- Research read 23 Sept 2026
- How the order is worked out
- 1
Bandura
Free plan LinuxMacSelf-hosted+1Bandura brings API testing, AI workflow building and CI execution into a local desktop workspace.
- 2
Evans
Free plan LinuxMacWindowsEvans offers both interactive API inspection and scriptable CLI use, including streaming support. Check the gRPC-Web TLS and repeat-option limits against your workflow.
- 3
FintX
Free plan LinuxMacWindowsFintX combines gRPC response validation, performance scenarios, mock services, and local data storage in a desktop application.
- 4
ghz
Free plan APILinuxSelf-hostedghz provides gRPC load testing through a CLI and Go package, with varied protocol inputs, call types, load schedules, and report outputs.
- 5
gRPC CLI
Free plan LinuxMacWindowsChoose gRPC CLI if you need a free command-line tool for inspecting gRPC services and making unary calls, and can build it from source.
- 6
BloomRPC Extended
Free plan LinuxMacWindowsBloomRPC Extended offers broad gRPC call support and request configuration in a free desktop client.
- 7
GripMock
Free plan APILinuxMac+3GripMock covers gRPC request matching, dynamic responses, streaming, and in-process Go use.
- 8
grpcmd
Free plan LinuxMacWindowsgrpcmd provides command-line service discovery and calling, with alternatives when reflection is unavailable. The related script and GUI add different workflows, but are separate offerings.
- 9
grpcui
Free plan LinuxMacSelf-hosted+2grpcui offers a browser-based way to build and inspect gRPC requests, including support for several schema sources and transport options.
- 10
gRPC Swagger
Free plan APISelf-hostedWebChoose gRPC Swagger if you need a free, self-hosted way to discover and call gRPC methods in Swagger UI and can enable reflection on the service.
- 11
grpcurl
Free plan LinuxMacSelf-hosted+1Choose grpcurl when you need a free command-line way to invoke gRPC methods, inspect schemas, or work with streaming RPCs.
- 12
Chiko
Free planChoose Chiko if you want a free terminal interface for gRPC requests and your server supports reflection.
- 13
Granc
Free plan LinuxChoose Granc if you want a free, self-hosted Linux CLI for gRPC calls and service inspection using JSON.
- 14
grpcmock-go
Free plan LinuxSelf-hostedgrpcmock-go offers a range of server-mocking and client-invocation utilities for gRPC tests, including streaming cases. Check the Go version prerequisite before installing it.
- 15
ProtoCall
Free plan LinuxMacWeb+1ProtoCall organizes gRPC-related proto files in browser-based workspaces and offers both GitHub and manual import paths.
- 16
protoc-gen-doc
Free plan LinuxMacSelf-hosted+1protoc-gen-doc offers multiple documentation formats, filtering, and output customization for Protocol Buffers projects.
- 17
- 18
Mediator
Free plan LinuxMacWindowsMediator provides a free desktop proxy with schema-based gRPC message decoding and request redirection.
- 19
gRPC Studio
Free plan LinuxSelf-hostedWebgRPC Studio provides a web UI for exploring services, making calls, and reviewing method history. Confirm server reflection support and header behavior before relying on it for a workflow.
- 20
sabledocs
Free plan LinuxMacWindowssabledocs is a free, open-source option for generating customizable static contract documentation. Its workflow depends on a protoc-generated descriptor and Python 3.11 or later.
- 21
WireMan
Free plan LinuxChoose WireMan if you work with gRPC endpoints on Linux and want a terminal client that handles streaming methods, request history, and authentication headers.
- 22
grpc-wiremock
Free plan Self-hostedgrpc-wiremock provides contract-based mock generation, hot reload and a gRPC-to-HTTP proxy workflow in a self-hosted package.
- 23
grpc-docs
Paid LinuxWebgrpc-docs provides a self-hosted path to interactive gRPC API documentation, with React and Docker deployment options.
- 24
grpcmock
Paid Self-hostedgrpcmock provides controls for simulating gRPC calls and checking how tests invoke them. Multithreaded test setups should account for its ThreadLocal configuration behavior.
#1Places #1, #2, #3, #4, #5 on this list can be bought by the makers of the software on it. See the price
More in Developer Tools
- GUI Testing Software34
- Hex Editors32
- IDE Software53
- Incident Management Software29
- Infrastructure as Code Security Software22
- Infrastructure as Code Tools31
- Infrastructure Monitoring34
- Infrastructure Policy as Code Tools25
- Infrastructure Testing Tools28
- In-Memory Databases25
- Integrated Development Environments65
- Integration Testing Tools26