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8f4e

A free web demo — play it in your browser, no install. 8f4e is a stack-oriented programming language with a semi-visual live code editor

by @andorthehood · andorthehood/8f4e on GitHubLANG TypeScript★ 13HOSTED ON EDITOR.8F4E.COMUPDATED 19 Aug 2026

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Controls: Arrow keys · WASD · Space · Mouse

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From the README

8f4e is a stack oriented programming language and live code editor that I created to perform generative music at algorave events. This monorepo contains the compiler, specialised runtimes, and the code of a browser-based visual code editor I designed specifically for the 8f4e language. The editor and runtime stack follows a REPL-style coding loop (edit, compile/evaluate, and observe output), but it is UI-driven rather than a terminal prompt workflow.

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