DOS Wasm X vs DosKit

DOS Wasm X is a free, browser-based DOS emulator built around the DOSBox-X codebase and using WebAssembly. It provides virtual hard drive choices of 512 MB, 1 GB, or 2 GB and RAM choices of 32 MB, 64 MB, or 128 MB. The browser stores the drive so users can return later, and it can be exported as an image for local saving. Supported file types include ISO, ZIP, BIN, CUE, IMG, and 7z; users can import and export files and change a CD while the emulator is running. Controls include mobile mode, an on-screen keyboard, gamepad support, full screen, zoom, mouse capture, CPU speed and emulator time settings, and pause and resume. Audio, dark mode, and resolution resizing are also listed. Windows 95 or Windows 98 can be installed with the user's own Windows copy and ISO. The project can be hosted on a web server by copying the dist folder or run in a container using its Docker command. Before leaving after using Windows, shut it down within the guest system to save drive changes.

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.