browser-runtime

Hologram, an Elixir framework that runs in the browser, has released four feature updates in 2025, porting most of Elixir's standard library to the client side, adding JavaScript interop, a realtime layer, and closer local-first sync capabilities, with strong community backing.

The team ported the Claude Code source code to the WebAssembly runtime, bundling Node.js and Python, and achieved running Claude Code directly in the browser, including a terminal UI and a local-like isolated execution environment.