The following is a list of clones of Sinclair Research's Sinclair QL

Sinclair QL

The Sinclair QL , was a personal computer launched by Sinclair Research in 1984, as the successor to the Sinclair ZX Spectrum...

 microcomputer

Microcomputer

A microcomputer is a computer with a microprocessor as its central processing unit. They are physically small compared to mainframe and minicomputers...

:

• Sandy QLT / Futura (only produced in prototype form)
• CST Thor
  CST Thor
  The CST Thor series of personal computers were Sinclair QL-compatible systems designed and produced by Cambridge Systems Technology during the late 1980s.- Thor PC :...
  
   series (Thor 1 / Thor 20 / Thor XVI)
• Qubbesoft Aurora (a replacement QL motherboard
  Motherboard
  In personal computers, a motherboard is the central printed circuit board in many modern computers and holds many of the crucial components of the system, providing connectors for other peripherals. The motherboard is sometimes alternatively known as the mainboard, system board, or, on Apple...
  
  )
• Peter Graf's Qx0 series of motherboards: Q40, Q40i and Q60

The following hardware devices provided QL compatibility for other computer platforms:

• Futura Datasenter QL Emulator for the Atari ST
  Atari ST
  The Atari ST is a home/personal computer that was released by Atari Corporation in 1985 and commercially available from that summer into the early 1990s. The "ST" officially stands for "Sixteen/Thirty-two", which referred to the Motorola 68000's 16-bit external bus and 32-bit internals...
  
  
• Jochen Merz's QVME card for the Atari ST
  Atari ST
  The Atari ST is a home/personal computer that was released by Atari Corporation in 1985 and commercially available from that summer into the early 1990s. The "ST" officially stands for "Sixteen/Thirty-two", which referred to the Motorola 68000's 16-bit external bus and 32-bit internals...
  
  e and Atari TT
• Miracle Systems
  Miracle Systems
  Miracle Systems Ltd. were a manufacturer of personal computer peripherals and upgrades, specializing in the Sinclair QL, in the 1980s and early 1990s....
  
   QXL and QXL II cards for PC compatibles

The ICL One Per Desk

One Per Desk

The One Per Desk, or OPD, was an innovative hybrid personal computer/telecommunications terminal based on the hardware of the Sinclair QL. The One Per Desk was built by International Computers Limited and launched in the UK in 1984...

 (also sold as the BT Merlin Tonto or the Telecom Australia

Telecom Australia

Telecom Australia was the trading name of the:* Australian Telecommunications Commission * Australian Telecommunications Corporation * Australian and Overseas Telecommunications Corporation...

 Computerphone) shared some hardware components with the QL but was not intended to be software-compatible.

In addition, several software emulator

Emulator

In computing, an emulator is hardware or software or both that duplicates the functions of a first computer system in a different second computer system, so that the behavior of the second system closely resembles the behavior of the first system...

s of the QL exist including QPC, uQLX, QLay and Q-emuLator.