| Jack and the Pirates | | | General: Education |
| Jack in Crazyland | | | General: Education |
| Jack in Magicland | 1985 | Turtle Software | General: Education |
| Jacksoft Assembler | | | Programming: Assembler/Mcode |
| Jailclip | | | Utility: Clip-Art |
| Japanese Crosswords | | | General: Domestic |
| Jargonaut | | | Utility: I/O Handling |
| Jedicopy and Supersave | | | Utility: Copy/Backup |
| Jemmini Commander | | | Utility: Media Admin |
| Jeremy | 1984 | King Software | General: Education |
| Jeroglific | | | Utility: undetermined |
| Jet Set Willy Construction Kit | 2003 | Broadsoft | Utility: Game Editor |
| Jet Set Willy Editor | | | Utility: Game Editor |
| Jet Set Willy Editor | | | Utility: Game Editor |
| Jet Set Willy Editor | | | Utility: Game Editor |
| Jet Set Willy Editor Mk2 | 1984 | Softricks | Utility: Game Editor |
| Jet Set Willy Graphics Designer | | | Utility: Game Editor |
| Jet Set Willy Levels Designer | | | Utility: Game Editor |
| Jet Set Willy Room Designer | 1985 | R.D. Foord Software | Utility: Game Editor |
| Jet Set Willy Screen Gallery | | | Utility: Game Editor |
| Jet Set Willy Sprite Library | 1985 | R.D. Foord Software | Utility: Game Editor |
| Jet Set Willy: DefRoom | 2003 | Jonathan Graham Harston | Utility: Game Editor |
| Jet Set Willy: Dr. Jet Set Willy Microdrive Tape | 1986 | R.D. Foord Software | Utility: Game Editor |
| JetSet Willy Editor | 1984 | Spectrum Electronics | Utility: Game Editor |
| Jingler | | | Utility: Music |
| JMB Poems | | | General: Education |
| Jogger’s Log | 1984 | Earlgate Computers | General: Domestic |
| Joggers Diary | | | General: Domestic |
| John Brown | 1986 | ON1KLE | General: Domestic |
| Joker | 1982 | Flowchart Ltd | General: Domestic |
| Jotter! | | | Utility: Word Processor |
| JOY | | | Programming: General |
| Joy Graph | | | Utility: Graphics |
| Joystick Adaptor Tape 1 | 1983 | Program Factory | Utility: I/O Handling |
| Joystick Control | | | Programming: General |
| JP-Clone | | | Utility: Copy/Backup |
| JPEG Viewer | | | Utility: Visual/Screen |
| JSW Editor | 1984 | Softricks | Utility: Game Editor |
| Juggler | | | General: Domestic |
| Julia Set Generator | | | Utility: Visual/Screen |
| Julia Sets | | | Utility: Visual/Screen |
| Jumble | | | General: Education |
| Jumbochars! | | | Utility: Visual/Screen |
| Jungle Maths | 1983 | Scisoft | General: Education |
| Junior Arithmetic | | | General: Education |
| Junior Arithmetic | | | General: Education |
| Junior Maths | | | General: Education |
| Junior Maths | | | General: Education |
| Junior Maths | | | General: Education |
| Junior Maths | | | General: Education |
| Junior Maths Pack | 1984 | Micro-Mart Software | General: Education |
| Junior School Tutor | | | General: Education |
| Junior Wordsplits | 1983 | Sulis Software Ltd | General: Education |
| Just a Mot: French Vocabulary | | | General: Education |