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DOSVAXJ3

DOSVAXJ3 is a free emulator for AX, J-3100, and DOS/V, based on DOSBox.

Place
#16 of 26
Score
6.0
DOSVAXJ3's website

What DOSVAXJ3 is

DOSVAXJ3 is a free emulator for AX, J-3100, and DOS/V, based on DOSBox. It runs on Windows, Linux, and macOS, and starts in DOS/V mode; J-3100 mode can be enabled in its configuration file. It supports Japanese keyboard input and Japanese text entry through Windows and macOS IME or Linux XIM. Japanese fonts are included, and additional font files can be used to make the display resemble original hardware.

The emulator can boot Toshiba DOS, DOS/V, and other disk image files. It supports long filenames and copying displayed text to the clipboard. The maker lists Windows 7, 8, 10, and 11, Linux, and macOS as supported systems. Downloads include 32-bit and 64-bit Windows executable bundles and separate debugger bundles. Linux and macOS users build from source and must first build and install SDL-IM-plus. DOSVAXJ3 is listed under GPL v2, with its source code linked on GitHub.

Good

  • Emulates AX, J-3100, and DOS/V
  • Supports Japanese text input through platform IMEs
  • Can boot Toshiba DOS and other disk images
  • Supports long filenames and clipboard text copying

Watch out

  • Linux and macOS builds require SDL-IM-plus
  • Linux and macOS users must build from source

Who it suits

DOSVAXJ3 suits users who need to run AX, J-3100, or DOS/V environments and Japanese text input. Windows users can use the listed executable bundles, while Linux and macOS users need to build from source.

Verdict

DOSVAXJ3 provides Japanese input and font support alongside disk-image booting for its emulated environments. The platform-specific build steps are worth noting, particularly for Linux and macOS users.

Plans and prices

From DOSVAXJ3's own pricing page, checked 9 Oct 2026.

All about pricing
PlanPriceWhat it gives you
DOSVAXJ3FreeWindows downloads; macOS and Linux builds from source · GPL v2

The facts

Each one read from DOSVAXJ3's own pages, with the date it was checked.

What it does

Booting
It can boot from Toshiba DOS, DOS/V, and other disk image files.checked 9 Oct 2026
Download formats
The download section lists 64-bit and 32-bit Windows executable bundles, plus separate debugger bundles.checked 9 Oct 2026
File and clipboard support
It supports long filenames and copying on-screen text to the clipboard.checked 9 Oct 2026
Fonts
It includes Japanese font support and can use font files to make the display resemble the original hardware.checked 9 Oct 2026
Japanese input
It supports Japanese keyboard input and Japanese text input through Windows and macOS IME or Linux XIM.checked 9 Oct 2026
License
The maker lists DOSVAXJ3 under the GPL v2 license.checked 9 Oct 2026
Operating systems
The maker lists Windows 7/8/10/11, Linux, and macOS as supported operating systems.checked 9 Oct 2026
Purpose
DOSVAXJ3 is an emulator for AX, J-3100, and DOS/V based on DOSBox.checked 9 Oct 2026
Source code
The maker links to the DOSVAXJ3 source code on GitHub.checked 9 Oct 2026

Where it runs

DOS/V and J-3100
It starts in DOS/V mode by default, and J-3100 mode can be enabled through the configuration file.checked 9 Oct 2026
Linux and macOS build requirement
The maker says to build and install SDL-IM-plus before building the Linux or macOS version.checked 9 Oct 2026

The company

Maker background
The maker says Nanshiki has developed software since its founding in 1995, including embedded-control firmware, Windows applications, internet servers, and databases.checked 9 Oct 2026

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