Built with AssemblyScript

A place for all things AssemblyScript. Feel free to add your projects and applications, in alphabetical order.


  • Wasm Mandelbrot (demo) A mandelbrot rendered using a variety of WebAssembly tools (emscripten, AssemblyScript, asm.js, etc ...)

  • WasmBoy Benchmark Benchmarking WasmBoy emulator

  • webassembly-wave (demo) JavaScript vs WebAssembly performance comparison - wave equation demo (JS, C++, AssemblyScript)


  • Assembleash A playground for WebAssembly and Typescript-like languages.

  • Fastly Terrarium A compilation toolchain and sandbox to run WebAssembly server-side, with native support for AssemblyScript.

  • NEAR Studio Develop and deploy distributed web apps using smart contracts authored in AssemblyScript.

  • WebAssembly Studio Learn, Teach, Work and Play in the WebAssembly Studio.


  • wasmBoy (demo) Game Boy / Game Boy Color Emulator Library, written for WebAssembly using AssemblyScript.



  • as2d Bring the power of the CanvasRenderingContext2D prototype to AssemblyScript.

  • as-smallpt Port of C++ smallpt, a path tracing renderer.


  • AS-LZMA LZMA Decoder written in AssemblyScript.

  • assemblyscript-bson BSON encoder / decoder

  • assemblyscript-json JSON encoder / decoder

  • bignum.wasm Fixed length big numbers like u128, i256, fp128 and etc for AssemblyScript

  • Levenshtein Wasm An experimental lightning-fast Wasm-compiled levenshtein library.

  • superfasthash An implementation of the SuperFastHash non-cryptographic hashing algorithm in JavaScript and WebAssembly.

  • WASA An AssemblyScript API layer for WASI system calls [WIP].

  • WASM-Crypto An AssemblyScript set of cryptographic primitives for building authentication and key exchange protocols.

  • galois Arithmetic and polynomial operations in finite fields.

  • merkle Merkle tree and other data structures.

  • xoroshiro128starstar An AssemblyScript port of xoroshiro128starstar.c

  • pixelmatch-asc Pixel level image comparison library


  • as-pect A test library for AssemblyScript.


  • wasm-matrix A Matrix effect in your terminal using AssemblyScript and WASI, deployed to WAPM.

  • WireWorld (demo) The Wireworld Computer in Javascript/Canvas.