Compare software

Evans vs Warthog: catalog facts
Evans	Warthog
Free Free and open source under the MIT licence.	Free Free to download from GitHub.
Command line	Windows, macOS, Linux
Interactive REPL for exploring gRPC services Guided input of request fields	Automatic parsing of proto definitions into input forms Several authentication methods, including JWT and GCE
gRPC only No graphical interface	gRPC only, no REST or GraphQL Small project with a small user base
Downloadable app	Downloadable app
Open source	Closed source
License: MIT	License not stated
No account needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 24, 2026

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