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Node.js
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<p>Node.js is a <a href="/facts/Cross-platform/16zqdvNR">cross-platform</a>, <a href="/facts/Open-source_software/HzTaB8E9">open-source</a> <a href="/facts/JavaScript/XhhIIEsl">JavaScript</a> <a href="/facts/Runtime_environment/YmCuC4xP">runtime environment</a> that can run on <a href="/facts/Microsoft_Windows/bwhAhuSL">Windows</a>, <a href="/facts/Linux/9FvCKSTq">Linux</a>, <a href="/facts/Unix/0pNL2seI">Unix</a>, <a href="/facts/MacOS/Y93vVpTm">macOS</a>, and more. Node.js runs on the <a href="/facts/V8_(JavaScript_engine)/0Fd3taMh">V8</a> <a href="/facts/JavaScript_engine/6YEG2JFH">JavaScript engine</a>, and executes JavaScript code outside a <a href="/facts/Web_browser/2pfyymLs">web browser</a>. </p><p>Node.js lets developers use JavaScript to write <a href="/facts/Command-line_interface/R9JpGmXQ">command line tools</a> and for <a href="/facts/Server-side_scripting/JnLx8FnL">server-side scripting</a>. The ability to run JavaScript code on the server is often used to generate <a href="/facts/Dynamic_web_page/psjqGKBx">dynamic web page</a> content before the page is sent to the user's web browser. Consequently, Node.js represents a "JavaScript everywhere" <a href="/facts/Paradigm/HXpK3X7a">paradigm</a>, unifying <a href="/facts/Web_application/BLkF3BIN">web-application</a> development around a single <a href="/facts/Programming_language/cWTYbgWa">programming language</a>, as opposed to using different languages for the server- versus client-side programming. </p><p>Node.js has an <a href="/facts/Event-driven_architecture/THC25H6E">event-driven architecture</a> capable of <a href="/facts/Asynchronous_I/O/6A7V3P89">asynchronous I/O</a>. These design choices aim to optimize <a href="/facts/Throughput/6zAUsXqw">throughput</a> and <a href="/facts/Scalability/jh7JomPa">scalability</a> in web applications with many input/output operations, as well as for <a href="/facts/Real-time_Web/XlEplqVY">real-time Web</a> applications (e.g., <a href="/facts/Real-time_communication/d9vVQfa9">real-time communication</a> programs and <a href="/facts/Browser_game/cBtuK3dt">browser games</a>). </p><p>The Node.js <a href="/facts/Distributed_development/hQHebGya">distributed development</a> project was previously governed by the Node.js Foundation, and has now merged with the <a href="/facts/JS_Foundation/J9oqdyl4">JS Foundation</a> to form the <a href="/facts/OpenJS_Foundation/J9oqdyl4">OpenJS Foundation</a>. OpenJS Foundation is facilitated by the <a href="/facts/Linux_Foundation/5wbe2Vp0">Linux Foundation</a>'s Collaborative Projects program. </p>