Igir vs Jacare

Igir is a free ROM collection manager for scanning, organizing, filtering, patching, and reporting on game files. It can find DATs, ROMs, and ROM patches, including files inside archives, then organize ROMs with consistent names. Users can filter duplicates and unwanted ROMs, create multi-disc playlists, and apply patches in batches. Reports can show which ROMs are present or missing for each console, and Igir can generate fixdats for missing ROMs. For arcade collections, it can build or rebuild MAME sets by un-merging, splitting, or merging them. Documentation includes configuration guides for tools such as Batocera, LaunchBox, RetroArch, OpenEmu, and RomM. Igir runs on Windows, macOS, Linux, and other operating systems supported by Node.js. It is available as a downloadable executable or through npm, Homebrew, and Scoop. Every installation option requires a baseline understanding of command-line interfaces. The project describes its defaults as non-destructive and says it does not make network requests beyond those requested by the user, including usage or telemetry requests. Igir is licensed under GNU GPL version 3.

Jacare has no write-up on Specifiction yet; its figures are above.