DOS Wasm X
- Android app
- Not listed
- Free plan
- Yes
- Runs on
- self-hosted, Web
Summary
DOS Wasm X is a free DOS emulator that runs in a web browser using WebAssembly and the DOSBox-X codebase. It supports DOS-compatible software and offers virtual drives in 512 MB, 1 GB or 2 GB sizes, with RAM options of 32 MB, 64 MB and 128 MB. The drive saves in the browser for later use and can be exported as an image. The emulator accepts ISO, ZIP, BIN, CUE, IMG and 7z files, and supports file import and export as well as changing a CD while running. Controls include mobile mode, an on-screen keyboard, gamepad support, mouse capture, zoom and full screen; users can also adjust CPU speed, emulator time and mouse sensitivity. Audio, dark mode and resolution resizing are listed. Windows 95 or Windows 98 can be installed using the user's own Windows copy and ISO. The project can be hosted on a web server or run in a container, and its README points to online documentation. Shut down Windows inside the emulator before leaving to save drive changes.
Who it is for
DOS Wasm X suits people who want to run DOS-compatible software in a browser, including on mobile. It may also suit users who want to host the project themselves or run it in a container.
What is good
- Free browser-based emulator built on WebAssembly.
- Offers three virtual drive sizes and three RAM options.
- Supports gamepads, mobile mode and on-screen keyboard.
- Can import and export files and disk images.
What to know first
- Windows installation requires the user's own copy and ISO.
- Windows should be shut down before leaving to save changes.
- No security certifications or compliance claims are stated.
Verdict
DOS Wasm X provides configurable DOS emulation in a browser, with file handling and several input options. Keep the Windows shutdown step in mind if using a Windows guest.
DOS Wasm X plans and pricing
All plansCompared on MS-DOS emulators
Facts
- Purpose
- DOS Wasm X is a browser-based DOS emulator built around ease of use and stability, based on the DosBox-X codebase.github.com · 4 Oct 2026
- Windows support
- It supports installing Windows 95 or Windows 98 using the user's own copy of Windows.github.com · 4 Oct 2026
- File formats
- It lists automatic support for ISO, ZIP, BIN, CUE, IMG and 7z files.github.com · 4 Oct 2026
- Storage
- The browser hard drive has 512 MB, 1 GB or 2 GB size options and can be exported as an image for local saving.github.com · 4 Oct 2026
- Memory limit
- The listed RAM options are 32 MB, 64 MB and 128 MB.github.com · 4 Oct 2026
- Input and display
- Features include mobile mode, an on-screen keyboard, gamepad support, full screen, zoom controls and mouse capture.github.com · 4 Oct 2026
- Emulator controls
- Users can adjust CPU speed and emulator time, change mouse sensitivity, and pause or resume the emulator.github.com · 4 Oct 2026
- File transfer
- Users can import and export files into and out of the emulator and load or change a CD while it is running.github.com · 4 Oct 2026
- Self-hosting
- The project says users can host it on their own web server by copying the dist folder.github.com · 4 Oct 2026
- Container deployment
- The README provides a Docker command to run the app in a container.github.com · 4 Oct 2026
- Storage behavior
- The README says the hard disk saves directly in the browser so users can return later and continue.github.com · 4 Oct 2026
- Security and compliance
- The opened maker pages do not state any security certifications or compliance claims.neilb.net · 4 Oct 2026
- Support
- The README points users to online documentation for more extensive guides and technical information.github.com · 4 Oct 2026
- Notable usage note
- The app advises shutting down Windows in the guest OS before leaving the page to save hard drive changes and prevent Scandisk from running at the next boot.github.com · 4 Oct 2026
- WebAssembly
- The application is fully web based and uses WebAssembly.github.com · 4 Oct 2026
- Drive storage
- The in-browser hard drive has 512mb, 1 gig, or 2 gig options and can be exported as an image for local saving.github.com · 4 Oct 2026
- Input and mobile
- It supports mobile mode, an on-screen keyboard, gamepads, and mouse capture.github.com · 4 Oct 2026
- Audio and display
- The README lists audio support, dark mode, and resolution resizing.github.com · 4 Oct 2026
- Integrations
- The README identifies DOSBox-X as the core engine, DOSBox Pure for the on-screen keyboard, JS Dos for its Asyncify module, and Emscripten among the codebases used.github.com · 4 Oct 2026
- Windows installation requirement
- Installing Windows 95 or Windows 98 requires the user's own Windows copy and ISO.github.com · 4 Oct 2026
- Security and affiliation
- The maker states that the app was made for fun and is not affiliated or associated with Microsoft.github.com · 4 Oct 2026
Best DOS Wasm X alternatives
See all 20
Where it ranks on Everything Xiaomi
- Best MS-DOS Emulators in 2026#8 of 26
Is DOS Wasm X yours?
Claim it for free: prove the domain, then correct facts, plans and screenshots. An editor reviews every change.
Sources
- github.com/nbarkhina/DosWasmX· checked 4 Oct 2026
- neilb.net/doswasmx/· checked 4 Oct 2026