| GT2 Car Viewer (Edited) | Gran Turismo 2 | Multiple | GT2 Car Viewer by Leo2236, usability edits by pez2k and TheAdmiester | Tool | Download |
| GT2 Used Car Editor | Gran Turismo 2 | pez2k | Allows the user to edit used car stats such as price and date of appearance. | Tool | Download |
| GT2 Wheel Swap | Gran Turismo 2 | pez2k | Tool to extract/replace a car's wheel texture, allowing it to be swapped or used as aftermarket. | Tool | Download |
| GT4FS | Gran Turismo 4 | Team eventHorizon | Tool for unpacking GT.VOL from GT4 and GTHD. | Tool | Download |
| Gran Turismo 4 BMW 1 Series Virtual Drive | Gran Turismo 4 | Polyphony Digital | A build of GT4 featuring the then-new BMW 120i and 120d given to customers who attended a pre-release event. | Game Build | Download |
| Gran Turismo 4 First Preview | Gran Turismo 4 | Polyphony Digital | September 2004 preview build of Gran Turismo 4. | Game Build | Download |
| Gran Turismo 4 Mazda MX-5 Edition | Gran Turismo 4 | Polyphony Digital | Gran Turismo 4 demo from 2005 featuring the then-new NC generation Mazda MX-5. | Game Build | Download |
| Gran Turismo 4 Online Beta Test (US) | Gran Turismo 4 | Polyphony Digital | Mid-2006 online beta testing version of Gran Turismo 4 NTSC. | Game Build | Download |
| Gran Turismo 4 Tools | Gran Turismo 4 | TheAdmiester | A memory editing tool to allow the creation of custom arcade events and hybrid vehicles. | Tool | Download |
| RACE_EDIT Mode | Gran Turismo 5 | Anonymous | Enables RACE_EDIT mode on Licence B-1 of GT5 BCUS98114 2.11. | Mod | Download |
| Gran Turismo GTESD Extractor | Gran Turismo Sport | TheAdmiester | Extracts car sounds (Intake, Exhaust, Engine, etc.) from GTESD containers into SXD files which can be opened in VGMStream. | Tool | Download |
| GT3 Game Config Editor | Multiple | pez2k | Allows for the editing of gameconf files which control prize cars, arcade cars/tracks, starting money, etc. | Tool | Download |
| GTVolTools | Multiple | adeyblue | A set of tools for exploring, extracting, and rebuilding GT.VOL for GT2, GT2000, GT3, and GT Concept. | Tool | Download |
| Gran Turismo ESGX Editor | Multiple | TheAdmiester | Allows reading/extracting and creating/editing of PS3 GT .esgx files, as well as opening and converting PS2 GT .es files. | Tool | Download |
| Polyphony PS2Zip | Multiple | pez2k | Compresses and uncompresses files using the PS2Zip format used from GT4P onwards. | Tool | Download |