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kulala.nvim vs websocat: catalog facts
kulala.nvim	websocat
Free Free and open source under the MIT licence.	Free Free and open source.
Windows, macOS, Linux, Command line	Command line
HTTP, GraphQL, gRPC and WebSocket in one plugin Compatible with the JetBrains .http file format	Quick interactive testing of WebSocket endpoints Works in pipes and shell scripts
Requires Neovim No standalone interface outside the editor	Command line only Advanced options take time to learn
Downloadable app	Downloadable app
Open source	Open 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 23, 2026

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