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Bruno vs Slumber: catalog facts
Bruno	Slumber
Freemium Most features are free and open source under the MIT licence. Paid editions add features…	Free Free and open source.
Windows, macOS, Linux	Command line
Collections are plain files, so Git does the versioning and sharing Offline only, with the project committing to never adding cloud sync	Runs entirely in the terminal Request collections are plain YAML files
Some team features are paid The Bru markup is a format specific to Bruno	No graphical interface Requires writing YAML to define requests
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License not stated
No account needed	No account needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked September 23, 2026

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