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RomM vs Pegasus Frontend: catalog facts
RomM	Pegasus Frontend
Free The open-source software is available without a license fee. Hosting is separate.	Free The open-source application is available without a license fee.
Web, Self-hosted	Windows, macOS, Linux, Android
Web library with metadata, artwork and in-browser play Save synchronisation across devices through the server	Themes are real QML programs, so the interface can be anything Runs well on Raspberry Pi and Android as well as desktop
Docker deployment and a database to maintain In-browser emulation performance is limited compared with native emulators	Collections are configured in text files with no wizard Smaller theme and community ecosystem than the bigger front ends
Self-hosted, Web application	Downloadable app
Open source	Open source
License: AGPL-3.0	License: GPL-3.0
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 22, 2026

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