just.js
small, embeddable V8 JavaScript runtime for Linux
TLDR
Start a REPL (interactive shell)
$ just
Run a JavaScript file$ just [path/to/file.js]
Evaluate JavaScript code$ just eval "[code]"
Initialize a new project$ just init [project_name]
Build a JavaScript application into executable$ just build [path/to/file.js] --static
SYNOPSIS
just [options] [file]
DESCRIPTION
just is a small, embeddable V8 JavaScript runtime for Linux. It provides a minimal runtime environment for executing JavaScript applications with direct access to Linux system calls.The runtime is designed to be lightweight and fast-starting, suitable for serverless functions, command-line tools, and embedded applications. It can compile JavaScript into standalone executables.
PARAMETERS
eval CODE
Evaluate JavaScript code stringinit NAME
Initialize a new project directorybuild FILE
Build JavaScript into executable--static
Create statically linked executable
CAVEATS
Linux-only runtime. API differs from Node.js; applications may need modification. Smaller ecosystem compared to Node.js or Deno.
HISTORY
just-js was created as a minimal V8 runtime for Linux, focusing on low overhead and direct system call access rather than the broader API compatibility of Node.js.
