Edit fiddle - JSFiddle - Code Playground

JSFiddle now uses the Monaco editor (same as VSCode) instead of CodeMirror, includes AI code completion via Mistral's Codestral model (BYOK), supports custom monospace fonts, and has a CSS Flexbox generator. The app also loads faster after removing MooTools dependencies, and external resources are now injected as LINK or SCRIPT tags. Pro features include ad-free experience, pre-released features, fiddle collections, privacy options, and a built-in console.