Simple Console
An elegant browser-based command-line console. Type commands, see output, and build interactive terminal-style experiences in the browser.
About Simple Console
Type a command, hit Enter, and watch the output appear — that's the whole loop. Simple Console is a browser-based terminal emulator built for developers who want to prototype command-line interfaces without leaving the browser. It renders a clean, dark console surface where you wire up your own commands and responses, making it handy for building interactive demos, lightweight REPLs, or educational tools that need a terminal feel.
Because it's open source under the MIT license, you can pull the code straight from GitHub, strip it down, or extend it however you like. It won't fight you. If you find yourself needing to manipulate or inspect the data you're processing in those commands, CyberChef goes in a different direction but covers encoding, hashing, and transformation tasks that often come up in the same workflow.
Find it alongside other developer tools in the catalog. It works best on a physical keyboard — there's no mouse-driven UI to speak of, so shortcuts and quick typing are how you actually get things done here.
How to use
This is a web-based JavaScript console that lets you write and execute JavaScript code directly in your browser. • Type JavaScript commands in the input field at the bottom • Press Enter to execute your code • Results and errors will display in the output area above Controls: • Use Up/Down arrow keys to browse through your command history • Shift+Delete removes the current history entry • The console automatically scrolls to new output unless you scroll up to view earlier results You can execute any valid JavaScript, such as: • Basic math: 2 + 2 • Variables: var x = 10; x * 5 • Functions: Math.random() • DOM manipulation: document.title = "New Title" Error messages appear in red when your code has syntax errors or other issues. The console saves your command history locally so it persists between browser sessions. This tool is useful for testing JavaScript code snippets, debugging, learning JavaScript, or experimenting with browser APIs.
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