JavaScript フォーマッター

Make Minified & 生成d JavaScript Readable

Minified JavaScript is 圧縮ed into a single line for production efficiency, but it's unreadable when you need to debug or inspect it. 生成d code from bundlers, transpilers, or code generators often lacks フォーマットting. Trying to understand function a(b){return c(b.d)?e(b.f):null} is painful compared to properly フォーマットted code.

This JavaScript フォーマットter instantly beautifies any JS code, applying consistent indentation and line breaks. Read minified bundles, debug 生成d code, and understand code structure at a glance.

Customize フォーマットting Style

Indentation Options: Choose 2-space (compact, popular in modern projects) or 4-space (traditional, readable for complex nesting).

Brace Style: Select how opening braces are placed relative to statements:

• Collapse: Braces on same line as control structures (compact)
• Expand: Braces on separate lines (readable, common in some style guides)
• End Expand: Opening brace on same line, closing on new line (balanced approach)

These options let you match your team's coding standards or project conventions.

What フォーマットting Does

• Breaks code into readable lines at logical boundaries
• Applies consistent indentation for nested blocks
• Separates statements for clarity
• Preserves logic and functionality while improving readability
• Makes variable names, function calls, and control flow visible

Common Developer Scenarios

Debugging Minified Code: ブラウザ throws an error in minified code? フォーマット it to find the bug. Errors in minified bundles point to line 1, column 50000—not helpful. フォーマット the bundle and locate the actual problem.

Reading 生成d Code: Transpilers (Babel, TypeScript), bundlers (Webpack), and code generators produce valid but unフォーマットted output. フォーマット it to understand what was 生成d.

Code Review of Build Artifacts: Need to review what a bundler or build tool produced? フォーマット the output for human inspection.

Learning from Examples: Found code on GitHub or in documentation that's minified? フォーマット it to study 使い方.

Preparing Code for Analysis: Before analyzing code complexity, performance, or security, フォーマット it for easier inspection.

One-Click Copy

Once フォーマットted to your satisfaction, copy the output with a single click and paste it directly into your editor, documentation, or analysis tools.

Works with Minified & Poorly フォーマットted Code

The フォーマットter is forgiving. It handles:

• Single-line minified code
• Multi-line code with irregular indentation
• Missing whitespace and line breaks
• Nested structures
• All valid JavaScript syntax

Syntax Highlighting

フォーマットted code displays with syntax highlighting, making it even easier to read. Keywords, strings, comments, and operators are visually distinguished.

Completely ローカル処理

フォーマットting happens entirely in your ブラウザ using the js-beautify engine. Your code never leaves your machine, so you can safely フォーマット proprietary code, internal utilities, or any sensitive JavaScript.