CheerpJ 3.0: a JVM replacement in HTML5 and WASM to run Java on modern browsers

• v86

  161 19,974 9.4 JavaScript

  x86 PC emulator and x86-to-wasm JIT, running in the browser

  To be really safe, if you run Windows and are jonesing for some ActiveX action, you can run WSL, and LXDE on WSL, and run https://copy.sh/v86/?profile=windows98 on Firefox on LXDE[1].

  That’s maybe enough layers of indirection to make ActiveX safe :-)

  [1] https://imgur.com/a/VHYehLQ

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• j2cl

  10 1,246 9.8 Java

  Java to Closure JavaScript transpiler

  

• Graal

  165 20,475 10.0 Java

  GraalVM compiles Java applications into native executables that start instantly, scale fast, and use fewer compute resources 🚀

  

  Yes, and it will JIT compile the code to native if you're using GraalVM:

  https://github.com/oracle/graal/tree/master/wasm

  But the point of JNI is to provide language bindings. WASM doesn't automatically fix the need for those.

• Bytecoder

  4 903 7.3 Java

  Framework to interpret and transpile JVM bytecode to JavaScript, OpenCL or WebAssembly.

• wasmtime-dotnet

  3 428 7.0 C#

  .NET embedding of Wasmtime https://bytecodealliance.github.io/wasmtime-dotnet/

  

  Maybe embed wasmtime? I'm familiar with https://github.com/bytecodealliance/wasmtime-dotnet but perhaps this for jvm? https://github.com/kawamuray/wasmtime-java/blob/master/examp...

  I too love the idea of embedding wasm modules to be used across platforms.

• wasmtime-java

  2 127 6.6 Java

  Java or JVM-language binding for Wasmtime

  Maybe embed wasmtime? I'm familiar with https://github.com/bytecodealliance/wasmtime-dotnet but perhaps this for jvm? https://github.com/kawamuray/wasmtime-java/blob/master/examp...

  I too love the idea of embedding wasm modules to be used across platforms.

• disable-webassembly

  5 115 0.0

  Browser hacks to disable WebAssembly (WASM)

  Just in case those who prefer not to allow Java need this, here's some info about disabling WASM in various browsers.

  https://github.com/stevespringett/disable-webassembly

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• kotlin-wasm-examples

  2 530 8.2 Kotlin

  Examples with Kotlin/Wasm

  

  For anyone interested in the Kotlin side of things:

  Kotlin has a great compat with Kotlin/JS[0]. they also have Compose For Web which is more WASM based[1] though its marked as experimental

  [0]: https://kotlinlang.org/docs/js-overview.html

  [1]: https://github.com/Kotlin/kotlin-wasm-examples/tree/main/com...

• ndk

  14 2,017 3.6

  The Android Native Development Kit

  

  Android folks are thinking about using WASM for NDK, with compilation to native code on the PlayStore.

  https://github.com/android/ndk/issues/1771

• jvm-alternatives-to-js

  1 31 10.0 Java

  Repository comparing JVM alternatives to JS: CheerpJ, GWT, JSweet, TeaVM, Vaadin Flow, bck2brwsr (bonus: React, Dart)

  A while back CheerpJ had a huge footprint and terrible startup time compared to TeaVM: https://renato.athaydes.com/posts/comparing-jvm-alternatives...

  TeaVM has become even smaller and faster since that article was published. The test suites are here in case someone wants to conduct a rematch: https://github.com/renatoathaydes/jvm-alternatives-to-js

• campus-qr

  1 69 5.3 Kotlin

  Open source system for contact tracing at universities, based on scanning QR-codes. Written in Kotlin.

  

  The company I work for was a very early adopter of kotlin/js. During the pandemic we published an open source contact tracing web platform aimed at universities. https://github.com/studoverse/campus-qr

• asmble

  7 637 3.0 Kotlin

  Compile WebAssembly to JVM and other WASM tools

  I wrote https://github.com/cretz/asmble which has an AOT compiler and interpreter for WASM. Haven't worked on it for a while though.

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