DOS Wasm X
DOS Wasm X: Free, open-source WebAssembly emulation for DOS and Windows 95/98 in the browser. Ranked #9 of 26 in MS-DOS Emulators by our editors (6.6/10); pricing: Free plan; best for browser-based DOS and Windows 9x use.
At a glance
- Editor score6.6 / 10
- PricingFree plan
- Best forBrowser-based DOS and Windows 9x use
- Free planYes
- Paid fromNone
- Supported host platformsweb, mobile
- Facts checked20 Sep 2026
Where it wins
- Supports DOS applications, games, Windows 95, and Windows 98
- Handles ISO, ZIP, BIN, CUE, IMG, 7z, floppy, and CD images
- Includes file transfer, virtual drives, gamepads, and mobile web support
Where it doesn't
- Web-only access limits platform breadth
- Windows installations require user-provided ISO files
- Browser-saved virtual drives depend on the browser environment
Our verdict on DOS Wasm X
DOS Wasm X is an open-source, browser-based emulator for DOS applications and games, built around WebAssembly and based on DOSBox-X. It also supports installing Windows 95 or Windows 98 from user-provided ISO files. The product is aimed at people who want to run classic DOS software or older Windows environments through a web browser, including mobile web users. Its free availability and browser delivery make it suitable for lightweight access without a conventional desktop installation.
Its strongest area is media and file handling. DOS Wasm X supports ISO, ZIP, BIN, CUE, IMG, and 7z files, along with floppy disk loading and changing and CD loading and changing while running. Users can drag and drop files, import and export files, and save a virtual hard drive in the browser. CPU speed, RAM, zoom, and full-screen controls provide configuration options, while gamepad and on-screen keyboard support cover different input needs. These features make it a practical fit for varied DOS software and game workflows.
DOS Wasm X is also available for self-hosting on a user’s own web server or through Docker, which suits users who want to manage how the browser application is served. The main trade-off is its web-only focus: people seeking broader desktop platform coverage should consider a desktop emulator instead. Choose DOS Wasm X for browser-based DOS, Windows 95, or Windows 98 use with flexible image and file support; look elsewhere if a native desktop application is the priority.
DOS Wasm X pricing
DOS Wasm X fact sheet
| Free plan | Yes |
|---|---|
| Paid from | None |
| Supported host platforms | web, mobile |
| DOS target versions | Dos-compatible |
| Disk image formats | ISO, ZIP, BIN, CUE, IMG, 7z |
| Gamepad support | Yes |
| Save states | Not verified |
| Audio CD support | Not verified |
| Source available | Yes |
| Deployment | Cloud, Self-hosted |
| Platforms | Web |
| Support | Docs |
| Built for | Solo, Small business (editorial estimate) |
| Pricing | Free plan |
| Website | neilb.net |
| Facts checked | 20 Sep 2026 |
Alternatives to DOS Wasm X
- DOSBox StagingA capable free emulator for DOS software, games, and Windows 3.1 environments.9.0
- DOSBox PureA focused, free DOS emulator with convenient archive loading and Libretro support.8.8
- DOSBox-XA free, highly configurable choice for advanced DOS and legacy Windows emulation.7.7
See all DOS Wasm X alternatives →
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Reviewed by iTechGuides Editors · Editorial team · Updated Sep 2026
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