February 22, 2026
A fully client-side Ruby playground powered by WebAssembly — promising, experimental, and not quite ready for prime time
Running Ruby directly inside the browser has long been a dream for educators, tooling developers, and the Ruby core community. Thanks to WebAssembly (WASM), that vision is no longer theoretical.
Rubox , a browser-based Ruby editor built on Ruby WASM and TypeProf, demonstrates what a fully client-side Ruby environment can look like — no servers, no installation, and no backend infrastructure required.
But beyond the novelty, this project raises deeper questions about the future of Ruby tooling, documentation, and distribution.
You can try Rubox yourself here: https://rubox.vercel.app/
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