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httpYac vs Resterm: catalog facts
httpYac	Resterm
Free Free to use.	Free Free and open source under the Apache 2.0 licence.
Command line	Windows, Linux, Command line
Plain-text request files that fit in version control REST, SOAP, GraphQL and gRPC in one tool	Plain .http files that fit into git Covers HTTP, GraphQL, gRPC, WebSocket and SSE
No standalone graphical app; works through the CLI or VS Code Scripting requires familiarity with Node.js	Terminal interface only, no graphical app Many features to learn compared with a simple request tool
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: Apache-2.0
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 2, 2026

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