- J Builder Pro 3 s/n: 300-000-2824
- Jammi'n race 1.2 S/N: 99682340ZK3A3141928HHH13141928<br>
- Janken-R DX 3 s/n: abcdefgzp
- Janken-R DX 3.0.1 s/n: mccdnfgki
- Japan 1.1 s/n: 1234-6515-3989-MJP
- Jashin no Meikyu 1.0J s/n: JS1182CRB
- JChecker 2.1.1 Name: nowhereman s/n: 34211
- Jedit 3.0.1 Name: [k]rack Works s/n: 2573923122
- Jedit 4 Name: nowhereman s/n: 363630744
- J-Kerner 1 s/n: T4K-10241-3CQ
- Joshikousei PuruPuru 0.1b1 s/n: PU000823 or s/n: PU0001206
- JPEGBatcher 1.x.x s/n: D08X-ZJun-Ibsv or s/n: pf+D-6oZ3-HkTX or s/n: BYdL-3?xz-Enz0
- JPEGBatcher 1.2.1 s/n: RJPG-0142-OYuz or s/n: RJPG-0143-OYuz
- JPEGBatcher 1.2.2J s/n: xEYa-fnM4-NutZ or s/n: fE2W-NhLQ-K5/z or s/n: Dcx9-edL0-L7s4
- JPEGBatcher 1.2.x s/n: RJPG-0147-OYuz
- Jump Zampoli 1.03 Name: Cendryom Street: Reverse street Town: Cracktown Country: STW s/n: 4784PMP76N6Q52i
- Jumper 1 s/n: 123-JUP-4567897
