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Description
Code beautifier for JavaScript, CSS and HTML. Paste minified code and get clean, indented, readable formatting instantly. Code Beautifier — Instant JavaScript, CSS & HTML Formatting Right in Your Browser Stop squinting at minified one-liners. Code Beautifier is a lightweight Chrome extension that turns compressed, unreadable JavaScript, CSS, and HTML into clean, perfectly indented, human-readable code in under a second — no server, no copy-pasting into external websites, no signup required. This code beautifier is the fastest way to make sense of a production bundle, an inline style block, or a scraped page without leaving your current tab. HOW IT WORKS Paste any snippet — a minified script, a squashed stylesheet, or a wall of HTML — into the input box and click Beautify. The code beautifier detects the language automatically, or you can pick JavaScript, CSS, or HTML manually from the dropdown. In an instant the beautifier restructures your code: statements land on their own lines, blocks are indented consistently, nested tags are stepped for easy scanning, and braces line up the way a style guide expects. Click Copy and the polished code lands on your clipboard, ready to paste into your editor, a code review comment, a bug report, or documentation. KEY FEATURES Instant formatting — no latency, no network request. The code beautifier works fully offline and never communicates with external servers. Automatic language detection — paste code and the code beautifier recognises whether it is JavaScript, CSS, or HTML, then applies the right formatting rules. A label shows what was detected, and a manual override is one click away. Indent control — choose 2-space, 4-space, or tab indentation to match your team style guide or the linter rules already configured in your project. One-click copy — the code beautifier sends the output to your clipboard without selecting any text. Clear button — wipe both the input and output fields at once when you want to start fresh. Keyboard shortcut — press Ctrl+Enter on Windows or Linux, Cmd+Enter on Mac, to trigger the code beautifier without reaching for the mouse. Battle-tested engine — formatting is powered by the same js-beautify library trusted across the industry for years, bundled locally inside the extension. The code beautifier handles modern JavaScript syntax, nested CSS rules, media queries, and deeply nested HTML structures without breaking your code. Zero permissions — the code beautifier requests no access to your browsing data, open tabs, clipboard history, or any website you visit. WHO IS IT FOR Front-end developers who need to read a minified bundle while debugging a production issue. Backend engineers inspecting generated markup or inline scripts returned by an API. QA engineers attaching readable snippets to bug tickets instead of thousand-character one-liners. Web designers untangling exported CSS from page builders and theme generators. Technical writers who want JavaScript and HTML examples in documentation to look clean and consistent. Students learning web development who want their practice files formatted like professional source code. Security analysts skimming third-party scripts before approving them. If you read or paste web code daily, this code beautifier belongs in your toolbar. PRIVACY FIRST Code Beautifier requests zero browser permissions. It cannot inject scripts into web pages, cannot read your browsing history, cannot access your open tabs, and cannot see anything you do outside the extension popup. Every operation of the code beautifier runs inside the popup window using JavaScript bundled with the extension — no data is ever sent to a remote server, and no remote code is ever loaded. The extension contains no analytics code, no advertisement libraries, and no third-party SDKs. Your code is yours alone. SUPPORTED LANGUAGES JavaScript — ES5 through modern ES2020+ syntax, arrow functions, template literals, classes, async/await, JSON objects, and minified library builds. CSS — plain stylesheets, media queries, keyframe animations, and vendor-prefixed rules. HTML — full documents or fragments, with proper indentation of nested elements, attributes preserved exactly, and inline script and style blocks formatted too. GETTING STARTED Pin the Code Beautifier icon to your Chrome toolbar. Click it, paste your snippet, pick the indent width, then press Beautify or Ctrl+Enter. Copy the result. Done — the whole flow takes under five seconds. Install the code beautifier now and turn every unreadable wall of minified code into clean, scannable source.