WebMSX Git (2016/11/26) is released. WebMSX, or simply WMSX, is a new cross platform MSX emulator designed for the Web. WebMSX is great for displaying MSX software running inside webpages. You can launch the emulator and load ROMs, DSK and CAS images with a single link.

WebMSX Features:
* Show any MSX game/software running with a single link to this page
* Put a MSX computer on your own webpages easily
* 9 Generic machines (MSX1, MSX2, MSX2+). NTSC 60Hz or PAL 50Hz
* PSG, SCC, SCC-I, FM-PAC and MSX-MUSIC sound
* Cross platform HTML5/JS. Runs in any Browser, tested in Chrome/Firefox
* Runs locally with a single HTML file, no install needed
* Play Cartridge ROMs, Disk and Tape images
* Powerful Drag & Drop system for loading media files
* Load several disks at once and easily switch disks
* "Files as Disk" and "ZIP as Disk" emulation
* Savestates support. Export and share Savestate files
* Keyboard, Gamepad and Mouse controllers with auto-detection
* Easily toggle extensions like SCC, PAC, DOS2, etc.
* Adjustable speed, Pause and Frame-by-frame advance
* Copy & Paste text, Screen Capture, Debug modes
* Resizable Screen, Full Screen mode
* Javascript API for loading media and machine control

WebMSX Changlog:
* Quick Options Dialog
Alpha 4.0.24
* Quick Options Dialog
* Alpha 4.0.23
* Larger menus for mobile
* Standalone page ready to official site
Beta 4.0.22
* Standalone page ready to official site
Beta 4.0.21
* Standalone page ready to official site
Beta 4.0.21
* Standalone page ready to official site
Beta 4.0.15
* FullScreen on Browser Standalone mode.
Beta 4.0.12
* Logo fixes. Beta 4.0.10
* New Logo Screen scaling, possible to show message in full-screen scenarios
* Built-in App Cache update control
* Darker Reds
* 20% higher audio volume
* Small textarea touch callout fix tor TextEntryDialog
* Settings Dialog updated
* Text Entry Dialog, VirtualKeyboard operable with mouse
* Text Entry Dialog started
* Mobile GUI
VirtualKeyboard CSS performance

Try: WebMSX
Source:Here