DOS Wasm X vs DOSBox Pure

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.

DOSBox Pure is a DOS game emulator fork that runs on Windows, macOS, and Linux, either as a standalone desktop download or as a RetroArch core. It opens ZIP and DOSZ files, DOS programs, configuration files, folders, and CD, floppy, or hard disk images. For gamepads, it can detect games and apply controller mappings, or let users map controls to emulated keyboard, mouse, and joystick inputs. Each content item has 10 save-state slots, though complex late-era DOS games may have problems and states depend on using the same game and video or CPU settings. Users can create an 8 to 1024 MB hard disk image and install an operating system from a bootable CD-ROM or floppy image. The emulated NE2000 network card cannot connect to the real internet. Graphics include 3dfx Voodoo PCI emulation, with OpenGL hardware rendering by default and a software option that uses more CPU. MIDI music can use SoundFont files or ROM files for MT-32 emulation. It is free to download; donations are welcome.