Volt – front end tooling for Phoenix that runs inside the BEAM

In plain words

Volt is a front-end tooling system for Phoenix, the web framework for Elixir, that executes directly within the BEAM virtual machine. It enables developers building Phoenix applications to handle front-end compilation and asset management without leaving the Elixir ecosystem. The tool streamlines the development workflow by integrating front-end processes into the BEAM, making it useful for teams working with Phoenix who want to keep their entire stack within a single runtime environment.

written from the facts on this page · September 2026

From the sources

Vite-level frontend tooling that runs inside the BEAM. One dep replaces esbuild, the Sass and Tailwind CLIs, and Node.js with Rust NIFs powered by OXC , LightningCSS , grass , and QuickBEAM for embedded JavaScript runtimes. mix igniter.install volt mix phx.server The installer configures everything. No binaries to download, no extra processes to manage. Volt requires Elixir 1.18 or later and Erlang/OTP 27 orfrom github.com

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