Emscripten

Emscripten is a source-to-source compiler that runs as a back end to the LLVM compiler and produces a subset of JavaScript known as asm.js.[3] It can also produce WebAssembly.[4] This allows applications and libraries originally designed to run as standard executables to be integrated into client side web applications. asm.js can be compiled by browsers ahead of time meaning that the compiled programs can run faster than those traditionally written in JavaScript.

Emscripten
Original author(s)Alon Zakai
Stable release
1.39.4 / 3 December 2019 (2019-12-03)[1]
Repository
Written inC, C++, JavaScript[2]
TypeTranspiler
LicenseMIT License
Websiteemscripten.org/ 

Emscripten has been used to port Unreal Engine 3, SQLite, MeshLab,[5] Bullet physics,[6] AutoCAD,[7] and the Qt application framework, among others.[8]

Usage

Game engines

The Unity, Godot and Unreal game engines provide an export option to HTML5, utilizing Emscripten.[9][10][11]

Frameworks & toolkits

openFrameworks exports native C++ applications to HTML5 via Emscripten.[12] emscripten-qt allows you to compile applications written for the Qt application framework into JavaScript.[8]

Software archiving

In December 2014, the Internet Archive launched a DOSBox emulator compiled in Emscripten to provide browser-based access to thousands of archived MS-DOS and PC programs.[13][14][15]

See also

References
  1. "Releases". emscripten-core/emscripten. GitHub. Retrieved 2019-12-10.
  2. "emscripten-core/emscripten: Emscripten: An LLVM-to-JavaScript Compiler". C: 40.0%; C++: 34.4%; JavaScript: 17.4%.
  3. Walton, Zach (2012-04-04). "Easily Port C++ To HTML5/JavaScript With Emscripten". WebProNews. iEntry Network. Archived from the original on 2013-07-30. Retrieved 2012-04-25.
  4. https://github.com/kripken/emscripten/wiki/WebAssembly
  5. http://www.meshlabjs.net - Homepage of the experimental, client based, javascript, version of MeshLab that runs inside a browser
  6. "Porting Examples and Demos". Emscripten GitHub wiki. Retrieved 2016-03-01.
  7. "The Future of AutoCAD". Through the Interface. Retrieved 2018-05-09.
  8. "Wiki - emscripten-qt".
  9. "Unity game engine heading to the browser without plug-ins". Ars Technica. Retrieved 2016-03-01.
  10. "The future of scripting in Unity – Unity Blog". Unity Technologies Blog. Retrieved 2016-03-01.
  11. "Tappy Chicken". www.unrealengine.com. Retrieved 2016-03-01.
  12. "openFrameworks setup for Emscripten". openFrameworks. Retrieved 2016-03-04.
  13. Ohlheiser, Abby (2015-01-05). "You can now play nearly 2,400 MS-DOS video games in your browser". Washington Post. Retrieved 2015-01-08.
  14. Each New Boot a Miracle by Jason Scott (December 23, 2014)
  15. "Internet Archive Search: "collection:softwarelibrary_msdos"". archive.org. Retrieved 2016-03-01.
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