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formicarium

Linux CLIs in your browser

formicarium is a user-mode x86-64 Linux emulator compiled to WebAssembly. It runs real, unmodified CLI binaries in this tab.
Choose a toolEmpty terminalGet started

formicarium runs paludarium, a Rust counterpart of blink, on WebAssembly: a static x86-64 Linux executable starts without a kernel or a virtual machine, and its system calls are answered inside the browser.

  • Runs in your browser. The tools and their sample projects run in Web Workers in this tab. No server executes your commands.
  • Your data stays here. Files you create live in the page’s session and are gone when you reload. Nothing leaves the browser.
  • Real binaries. The showcase installs the latest stable aube, pitchfork, Biome, nano and jj that passed its Node, Chromium, Firefox, WebKit and Safari acceptance.

Open the tools to try a tool with a sample project, or start from an empty terminal and install one yourself. The guides explain how to embed the same public API in your own page.