The "Rebuild Database" feature is a built directly into the official Sony PlayStation 3 firmware. While some custom homebrew tools (like "KDW database rebuilder" or CFW tools) exist as PKGs to let users trigger a rebuild directly from the XMB dashboard without using physical buttons, they are completely optional.
Yes, it's compatible with most modern CFW versions (Rebug, Evilnat, Ferrox, etc.) and HEN-enabled HFW setups. download rebuild database ps3 pkg
Restores order after installing massive batches of homebrew packages. What it does NOT delete: Your game save files. Your downloaded games or applications. Your user profiles and trophies. Custom firmware (CFW) or PS3HEN modifications. The "Rebuild Database" feature is a built directly
To help find the right solution for your console, let me know: they are completely optional. Yes