What are the benefits of Code Formatter?

Universal formatter and minifier supporting 8 languages: JavaScript, TypeScript, JSON, HTML, CSS, SQL, XML, and YAML. Dual-mode processing: Format mode for readability, Minify mode for compact output and file size reduction. Browser-only processing keeps your code safe — nothing is sent to a server, ideal for confidential code. Freely adjust indent widths and switch between tabs and spaces to match project conventions. Auto-detect language feature enables one-click processing, with language-specific error guidance for quick fixes.

Is Code Formatter free?

Yes, it is completely free to use, and no registration is required. Tool processing happens entirely in your browser, and your input content and uploaded files are not sent to a server. Our first-party improvement metrics use no cookies, visitor IDs, or session IDs and store only normalized page paths and daily counts for fixed event IDs.

Code Formatter

Auto-format JavaScript, TypeScript, JSON, HTML, CSS, SQL, XML, and YAML code

コードフォーマッター

コードを自動整形して読みやすくします

言語

モード

インデント

入力コード

整形結果

About Code Formatter

Code Formatter is a client-side code formatting and minification tool that runs entirely in your browser. It supports eight languages: JavaScript, TypeScript, JSON, HTML, CSS, SQL, XML, and YAML, automatically detecting and processing your input code.

Format Mode features language-specific formatting logic optimized for each format: JSON parsing and pretty-printing, HTML and XML tag indentation, CSS property alignment, SQL keyword uppercasing with line breaks, JavaScript and TypeScript brace formatting, and YAML configuration file indentation normalization.

Minify Mode removes comments, collapses unnecessary whitespace, and eliminates line breaks to generate compact code output. This is ideal for reducing file size of API responses and build artifacts.

You can adjust indent width (2 or 4 spaces) and toggle between tabs and spaces to improve code readability. No data is ever sent to a server — all processing happens in the browser, making it safe for confidential code. It streamlines everyday code formatting and minification tasks for developers and engineers.

How to use Code Formatter

Paste the code you want to format or minify into the input text area
Select a language or use the auto-detect button to identify it
Choose a mode (Format or Minify). If using Format mode, also select indent width (2/4 spaces or tabs)
Click the Format button to see the result on the right side
Use the Copy button to copy the result to your clipboard

Benefits of Code Formatter

Universal formatter and minifier supporting 8 languages: JavaScript, TypeScript, JSON, HTML, CSS, SQL, XML, and YAML
Dual-mode processing: Format mode for readability, Minify mode for compact output and file size reduction
Browser-only processing keeps your code safe — nothing is sent to a server, ideal for confidential code
Freely adjust indent widths and switch between tabs and spaces to match project conventions
Auto-detect language feature enables one-click processing, with language-specific error guidance for quick fixes