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Warthog vs grpcurl: catalog facts
Warthog	grpcurl
Free Free to download from GitHub.	Free The open-source application is available without a license fee.
Windows, macOS, Linux	Windows, macOS, Linux, Command line
Automatic parsing of proto definitions into input forms Several authentication methods, including JWT and GCE	Browse schemas and invoke RPC methods
gRPC only, no REST or GraphQL Small project with a small user base	Servers without reflection require proto or protoset files.
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: MIT
No account needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 22, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.