BloomRPC Extended vs grpcmock-go

BloomRPC Extended is a free desktop GUI client for exploring and querying gRPC services on Linux, macOS, and Windows. It is a maintained fork of the original BloomRPC, which the project says was archived in January 2023. Native calls include unary, server streaming, client streaming, and bidirectional modes; gRPC-Web and server reflection are also supported. Users can import and manage .proto files, manage environments, and edit metadata. TLS and SSL connection security are available. The interface provides draggable service tabs, search and filtering, grouping by service, an overflow menu, and a close-all control. Packaged builds use CodeMirror 6 for syntax highlighting, according to the project. Downloads include macOS DMG, Windows EXE, and Linux AppImage or DEB. Homebrew and Scoop installation instructions are listed for macOS and Windows. GitHub Issues is the reported support route. The repository lists LGPL-3.0-or-later licensing; source builds require Bun v1.0 or later.

grpcmock-go is a free, MIT-licensed Go module providing gRPC testing utilities. It helps tests mock gRPC servers, configure expectations for methods, headers, and payloads, and invoke client calls. Supported methods include unary, client-streaming, server-streaming, and bidirectional-streaming patterns. Request matching can use exact values, regular expressions, JSON, or custom matchers. Mock responses may return payloads, errors, or custom-handler results, and streaming client invocations can use custom handlers. Services can be registered from generated Go code, service instances, or individual methods when generated code is unavailable. The project recommends MockServerWithBufConn for in-memory application testing, with examples using bufconn listeners and context dialers. Installation uses `go get go.nhat.io/grpcmock`, and Go 1.25 or later is required. GitHub lists v0.34.0, released December 12, 2025, as the latest release. The Open-source Go module plan costs nothing.