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Warthog vs Bruno: catalog facts
Warthog	Bruno
Free Free to download from GitHub.	Freemium Most features are free and open source under the MIT licence. Paid editions add features…
Windows, macOS, Linux	Windows, macOS, Linux
Automatic parsing of proto definitions into input forms Several authentication methods, including JWT and GCE	Collections are plain files, so Git does the versioning and sharing Offline only, with the project committing to never adding cloud sync
gRPC only, no REST or GraphQL Small project with a small user base	Some team features are paid The Bru markup is a format specific to Bruno
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: MIT
No account needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 21, 2026

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