Hatari
Accurate Atari ST, STE, TT and Falcon emulator
- Open SourceSource Code
- Thomas Huth and the Hatari teamDeveloper
- 28 Sep 2026Page Updated
Details
- Developers
- Thomas Huth and the Hatari team
- Source Code
- framagit.org
- Page Updated
Supported Systems
Platform Support
- Windows
- Linux
- macOS
Screenshots
Overview
Hatari is an Atari ST emulator started by Thomas Huth in 2001 and now developed by a small team. It emulates the ST, Mega ST, STE, Mega STE, TT and Falcon, and its cycle-accurate ST and STE emulation runs demos that depend on exact hardware timing. The 68030 and Falcon DSP emulation came from the WinUAE and Aranym projects.
Hatari ships with EmuTOS, a free replacement for the Atari operating system, so most games and programs work without an original TOS ROM. It can use floppy disk images in the ST, MSA, DIM and STX formats, emulate hard disks and connect MIDI to the host computer. A built-in debugger with a disassembler, breakpoints and a profiler makes it popular with developers.
Hatari is actively developed, and version 2.6.1 was released in August 2025. Official builds are available for Windows and macOS, and most Linux distributions package it. It is also available as a libretro core. Hatari is released under the GNU GPL.
Key Features
Cycle Accurate
Cycle-accurate ST and STE emulation runs timing-critical demos.
Free EmuTOS
Ships with EmuTOS, so most software runs without a TOS ROM.
Built-in Debugger
Disassembler, breakpoints and a profiler for developers.
Disk Formats
Reads ST, MSA, DIM and STX floppy images and emulates hard disks.
