Prototool
Your swiss army knife for protocol buffers
...Lint your Protobuf files with common linting rules according to Google' Style Guide, Uber's V1 Style Guide, Uber's V2 style guide, or your own set of configured lint rules. Format your Protobuf files in a consistent manner. Create Protobuf files from a template that passes lint, taking care of package naming for you. Generate stubs using any plugin based on a simple configuration file, including handling imports of all the well-known types. Call gRPC endpoints with ease, taking care of the JSON to binary conversion for you. Check for breaking changes on a per-package basis, verifying that your API never breaks.