Scala JavaScript

Open-source Scala projects categorized as JavaScript

Top 6 Scala JavaScript Projects

  1. Gatling

    Modern Load Testing as Code

    Project mention: Outgrowing Postgres: How to identify scale problems | dev.to | 2025-02-03

    Use load testing tools like Apache JMeter, Gatling, or Locust to measure your application's throughput under various loads and compare it to historical data.

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  3. Scala.js

    Scala.js, the Scala to JavaScript compiler

    Project mention: Evolving Scala | news.ycombinator.com | 2025-03-26

    > Clojurescript for frontend, Rust for portability

    If Clojure and Rust work well for you, more power to you. But at least in theory, you could very well use just Scala for these purposes

    Scala can compile to JS https://www.scala-js.org/ if you target frontend.

    And if you want portability, you can compile a Scala program with GraalVM's native-image and statically link everything with musl libc https://www.graalvm.org/latest/reference-manual/native-image...

    And if you want both frontend and portability everywhere, Scala will soon have a support for compiling to WASM (with WASI, etc) https://github.com/scala-wasm/scala-wasm/ (to be integrated into Scala.js after developed)

  4. scalajs-react

    Facebook's React on Scala.JS

  5. recheck

    The trustworthy ReDoS checker

  6. React4s

    Production ready React wrapper for Scala.js - composable lifecycle - no memoization, no macros, no implicits.

  7. typeless

    Typeless: the benefits of TypeScript, without the types

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).

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Index

What are some of the best open-source JavaScript projects in Scala? This list will help you:

# Project Stars
1 Gatling 6,584
2 Scala.js 4,621
3 scalajs-react 1,648
4 recheck 262
5 React4s 125
6 typeless 19

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