I have built a quick and easy web for searching machines and software lists with details, also lists CHDs.
No downloads obviously.
You can search machines on ROM SHA1 for identifying boards, main reason I built it.
Automatically updates from the driver XML and hash directory when there’s a new MAME release, so always current (checks every 24 hours).
I built it for my own amusement, thought I’d put it out there if anyone finds it useful.
There are other sites doing the same, but if you prefer it quick and simple you might like it.