PR is a DAT file editor (audio, graphics).
FreePrince is a free (GPL2+) implementation of the DOS version of Prince of Persia 1.
Princed is a Prince of Persia 1 level editor.
pv2ext1.zip - Princed V2.5 Extension 1
Pr1SnesLevEd is a modern Prince of Persia 1 for SNES level editor for Windows.
RoomShaker is a very powerful level editor for Prince of Persia PC. With RoomShaker you can move the rooms of the levels around so that they join onto different rooms. You can also change the internal layout of each room including the guards, guard colour & direction he faces, Guard hit-points, Player starting position, links between pressure plates and gates, And much more...
apoplexy is a modern Prince of Persia 1 level editor for Windows and GNU/Linux.
Prince of Persia games
pgsrca1.zip - Princed Graphics Extractor V1.0 Alpha 1
prmv12.zip - Princed Resource Manager v1.2
prmv1.zip - Princed Resource Manager v1.0
prinmidi.zip - MIDI files