Kreya is a desktop API client for exploring, testing, and automating API workflows.
Best gRPC Tools in 2026
Exploring and testing gRPC services can involve endpoint inspection, schema work, and integration into development workflows. Compared on CI integration, deployment model, server reflection, and gRPC-Web support, the entries also distinguish mock server, load testing, and Protobuf editor capabilities. Free-plan availability and paid-from pricing add cost context. grpcui, Kreya, and Bandura are among the tools to…
Bandura is a desktop workspace for building local AI workflows and testing APIs on Linux, macOS, and Windows, or through self-hosting.
grpcmd is a command-line tool for working with gRPC services on Linux, macOS, and Windows.
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FintX
FintX is a native desktop gRPC test bench for functional and performance testing, with versions for Linux, macOS and Windows.
Free planLinuxmacOSWindows6.6Free plan - 5
grpcui
grpcui is a free, open-source command-line tool for interacting with gRPC servers through a browser-based interface.
Free planWebLinuxmacOSSelf-hosted6.6Free plan - 6
protoc-gen-doc
protoc-gen-doc is a documentation generator plugin for the Google Protocol Buffers compiler.
Free planLinuxmacOSSelf-hostedWindows6.5Free plan - 7
sabledocs
Sabledocs is a free, open-source command-line generator that produces static HTML documentation for Protobuf and gRPC contracts.
Free planLinuxmacOSWindows6.5Free plan - 8
gRPC CLI
gRPC CLI is a command-line tool in the gRPC repository for inspecting services and calling methods on gRPC servers.
Free planLinuxmacOSWindows6.4Free plan - 9
gRPC Swagger
gRPC Swagger is a free, open-source debugging tool for discovering and calling gRPC methods through Swagger UI.
Free planWebAPISelf-hosted6.4Free plan - 10
grpcurl
grpcurl is a free command-line tool for interacting with gRPC servers and invoking RPC methods.
Free planLinuxmacOSSelf-hostedWindows6.4Free plan - 11
ghz
ghz is a command-line utility and Go package for load testing and benchmarking gRPC services, including local debugging and performance regression checks in CI.
Free planAPILinuxSelf-hosted6.3Free plan - 12
ProtoCall
ProtoCall is a cloud-based web app intended to simplify building APIs with gRPC.
Free planWebLinuxmacOSWindows6.2Free plan - 13
Chiko
Chiko is a free, open-source terminal interface for testing gRPC APIs, offered as desktop software.
Free plan6.1Free plan - 14
grpcmock-go
grpcmock-go is a free Go module with utilities for testing gRPC clients and servers.
Free planLinuxSelf-hosted6.1Free plan - 15
Mediator
Mediator is a cross-platform desktop GUI proxy for debugging gRPC traffic, available for Linux, macOS and Windows.
Free planLinuxmacOSWindows6.1Free plan - 16
Evans
Evans is a free, open-source gRPC client for manually inspecting APIs and scripting, available for Linux, macOS, and Windows.
Free planLinuxmacOSWindows6.0Free plan - 17
5.9 - 18
Granc
Granc is a free, open-source Linux command-line tool written in Rust for dynamic gRPC calls with JSON payloads.
Free planLinux5.8Free plan - 19
gRPC Studio
gRPC Studio is a free, open-source web interface for exploring and invoking gRPC services.
WebLinuxSelf-hosted5.8 - 20
WireMan
WireMan is a free, open-source terminal gRPC client for Linux developers testing gRPC endpoints.
Free planLinux5.8Free plan - 21
BloomRPC Extended
BloomRPC Extended is a free desktop client for exploring and querying gRPC services on Linux, macOS, and Windows.
LinuxmacOSWindows5.7 - 22
grpc-docs
grpc-docs is an open-source project for interactive documentation of gRPC APIs, intended to fill a role similar to Swagger UI for gRPC.
WebLinux5.6 - 23
grpc-wiremock
grpc-wiremock is a free, open-source, self-hosted tool for mocking server APIs, including gRPC and protobuf services.
Self-hosted5.3 - 24
grpcmock
grpcmock, also known as gRPC Mock, is a free, open-source Java tool for simulating gRPC service endpoints in unit and integration tests.
Self-hosted5.2
