Spiky’s DS Map Editor is currently the best mapping tool available.
Spiky’s DS Map Editor
Compatible with: Pokemon Diamond, Pearl, Platinum, Heart Gold, Soul Silver, Black, White
Supported OS: Windows
Download Pokemon GB GBC GBA NDS Hack Tools
Trophy Garden Pokemon Editor is the thing you need to recall and remember when you want to edit, adjust the Trophy Garden’s Pokemon.
With Safari Game Pokemon Editor… a tool created to change all Pokemon you find in Safari, you can catch even the rarest Pokemon that cannot be found normally.
With Sebbe’s Trainer Editor (or Sebbe’s Rival Editor), you can edit many trainers from the game Pokemon Diamond/Pearl.
PPRE was a part of the Project Pokemon’s ROM Editor, a very small part but powerful enough to edit the ROM at those days.