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ain vs Resterm: catalog facts
ain	Resterm
Free Free to download.	Free Free and open source under the Apache 2.0 licence.
Windows, macOS, Linux, Command line	Windows, Linux, Command line
Requests kept as plain-text files in folders Environment variables and .env file support	Plain .http files that fit into git Covers HTTP, GraphQL, gRPC, WebSocket and SSE
Terminal only, no graphical interface Smaller community than the GUI clients it replaces	Terminal interface only, no graphical app Many features to learn compared with a simple request tool
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: Apache-2.0
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 October 2, 2026

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