WebCL
WebCL is a web version of OpenCL.
WebGL
WebGL is a web version of OpenGL ES.
PNaCl
PNaCl is a sandboxing technology which enables execution of LLVM bytecode in a browser.
NaCl
NaCl is a sandboxing technology which enables execution of native machine code in a browser.
Web Workers
Web Workers are the analogs of processes in JavaScript world. Web Workers let JavaScript applications utilize additional processor cores for computations.
Asm.js
Asm.js is a statically typed subset of JavaScript which can be compiled into native code by a browser.
SIMD.js
SIMD.js is a JavaScript extension that introduces SIMD types and operations.