DosKit vs DOSVAXJ3

DosKit is a cross-platform foundation for running DOS applications through js-dos WebAssembly technology. It opens to an interactive DOS command prompt and is available as an installable Progressive Web App for desktop and mobile devices. After the first visit, service-worker caching enables offline use. URL parameters can load applications such as Second Reality and Impulse Tracker. Input includes standard DOS keyboard controls, including function keys and special characters, plus mobile touch controls. Audio output uses Sound Blaster and AdLib emulation. DosKit uses js-dos 8.3.20 WebAssembly and supports DOSBox and DOSBox-X backends. Its command interface includes pause, resume, mute, unmute, screenshots and filesystem read/write commands. WebAssembly and JavaScript are required, with at least 2GB of RAM recommended. Internet Explorer is unsupported, and iOS Safari versions before 15 have limited WebAssembly support. DosKit is free under the MIT License; js-dos and DOSBox are listed under GPL-2.0 licenses.

DOSVAXJ3 is a free emulator for AX, J-3100, and DOS/V systems, based on DOSBox. It runs on Windows, Linux, and macOS, starting in DOS/V mode; J-3100 mode is enabled through the configuration file. Japanese keyboard and text entry work through Windows or macOS IME or Linux XIM. Japanese fonts are included, and additional font files can shape the display like original hardware. The emulator boots 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, plus Linux and macOS. Windows downloads include 32-bit and 64-bit executable bundles and separate debugger bundles. Linux and macOS users must build and install SDL-IM-plus before building their versions. DOSVAXJ3 is listed under GPL v2, with source code on GitHub.