JRomManager vs Retrom

JRomManager is a free Java ROM manager for organizing and checking ROM collections. It works with MAME and Logiqx DAT files and can also import data from the MAME executable. Its tools scan, fix, and rebuild split, non-merged, or merged sets. It supports ZIP and 7z archives, TorrentZip, RAR4 and RAR5 decompression, and multi-volume RAR and 7z decompression. Checks include full or on-demand SHA1 scans, MD5 for older DAT files, CHD, and Software Lists. One important CHD limit: verification reads the header for MD5 or SHA1 but does not hash the CHD data. With MAME linked to a profile, its viewer can launch games or software marked available. Batch tools include a directory updater, torrent checker, and archive compressor. Desktop packages are listed for Windows x64, macOS x64 and ARM, and Linux x64; it can also run on an OS with Java 21. Server mode serves a web interface. Simple Server lacks encryption, access control, and DDoS protection; Full Server offers accounts, access rights, and TLS 1.3, but is experimental.

Retrom is a self-hosted game library service centered on emulation. It scans a server filesystem for games and platforms, then adds them to a library that desktop clients can use to install, uninstall, and play games. Clients are available for Windows, macOS, and Linux, with a browser client for library access from other devices. Retrom can run with a dedicated server or in standalone mode, where a client runs the server locally; other clients can connect to that standalone server only while the client remains open. It supports cloud saves for built-in and standalone emulators, syncing save data and save states to the server. Emulator profiles can be kept on the server for sharing or restoration, though clients need matching emulator and other client-specific paths to share configurations. Retrom can retrieve metadata and artwork through IGDB, its only listed metadata provider. Steam is its only supported third-party library integration and needs a Steam API key and user ID. Retrom is free under GPL-3.0. The project says it lacks specific security measures and recommends local-network use or a properly secured reverse proxy.