Porcelain Tile cleaner

Could someone please recommend a porcelain tile cleaner.

thanks

Try X-14, available at any supermarket.

I layed porcelain tiles with a high gloss on a countertop and used epoxy grout for stain resistance, the epoxy grout hazed the tile. I used acetone to remove the epoxy haze, didnt damage the tile.
You dont state where the tile is layed or what type of dirt you have on it.