Lunatic

What it does

Lunatic is an open source runtime that combines the fault-tolerance and massive concurrency of Erlang with the capability-based security model of WebAssembly. It can be used from any programming language that compiles to WebAssembly.

Lunatic is a WebAssembly runtime inspired by Erlang. It provides isolated, lightweight processes for massive concurrency and fault tolerance. Easily create distributed clusters with secure connections between nodes.

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  Lunatic – Actor System for Rust/WebAssembly2020 · github.com · ▲141

  Lunatic is an Erlang-inspired runtime for WebAssembly - lunatic-solutions/lunatic

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  Firefox in WebAssemblyJul 2026 · developer.puter.com · ▲273

  This is the entire Firefox browser rendering to a element. Gecko, all UI components, and the Spidermonkey JS engine are all compiled and running in WebAssembly. Here are a few things you might find interesting: - This is fully end to end encrypted! We use the WISP protocol for TCP-over-websockets. - There is a novel WASM->JS JIT for experimental site speedup - This port cost over 25k in opus/fable tokens for debugging and JIT research This was just a fun experiment to push the boundaries of WebAssembly. For a more usable "browser in browser" experience, we also built…

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  Visual flow-based programming for Erlang, inspired by Node-RED2025 · github.com · ▲243

  Hi There, Erlang-RED has been my project for the last couple of months and I would love to get some feedback from the HN community. The idea is to take advantage of Erlangs message passing and low overhead processes to have true concurrency in Node-RED flows. Plus also to bring low-code visual flow-based programming to Erlang.

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  Pollen – distributed WASM runtime, no control plane, single binaryApr 2026 · github.com · ▲137

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  CheerpX – x86 Node.js/python3/Ruby REPL in browser via WebAssembly JIT2021 · repl.leaningtech.com · ▲88

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  A tiny WASM compiler and runtime for demonstration purposes2022 · luna-demo.vercel.app · ▲48

  Hello, I'm building a WebAssembly compiler and documenting the process in the meantime. This aims to be a tool for demonstration and education purpose. It doesn't aim to do fancy stuff nor to replace existing ones. I'm building this to learn and to improve and hopefully it can be useful for others as well :) From last time I've presented the idea, I've implemented more basic features on Luna and I've built a custom and tiny runtime for Luna! (documenting it of course). Any feedback is really appreciated :) Repo: https://github.com/thomscoder/luna

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