slaIntroducing gunpla.fyi -- a searchable database of released Gunpla kits
ieatpwnsDalong.net does this in Korean and English with pictures of runners and full part count breakdown in Pictures
wirelesswireDalong is another good resource, but I prefer the manual scans from Bandai.
dalong is great! this is intended to be a better browsing experience rather than a replacement for dalong’s incredible cataloguing work