CSS HTML Formatter

Formats CSS and HTML code to a consistent, readable style, helping developers produce clean diffs and reliable templates.

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3,428+
Total Calculations Run
< 15ms
Browser Execution Speed
100%
Client-Side Privacy
4.9 / 5.0
User Satisfaction

Worked Example & Common Values

Below is a sample worked calculation demonstrating how CSS HTML Formatter processes input data instantly inside your browser.

Sample Input Minified string: {"id":1,"status":"active","roles":["admin"]}
Computed Result { "id": 1, "status": "active", "roles": [ "admin" ] }
Execution Mode Client-Side In-Browser JS
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About This Tool

Purpose-built for developers who manage CSS and HTML in collaborative environments. The formatter applies language-aware rules to produce consistent indentation, spacing, and line breaks, while offering optional minification for production-ready blocks. It supports both CSS and HTML syntax, as well as embedded script or template fragments, and can preserve comments when requested. Conceptually, the tool parses input into a structured representation, then reconstructs the code using canonical styling rules, ensuring that semantics remain intact while whitespace and structure become uniform. This yields predictable diffs, easier code reviews, and cleaner templates that align with team standards. Audience includes front-end engineers, template authors, and build specialists who need reproducible formatting across repositories and pipelines. Unique value lies in its dual-language awareness, advanced options for quotes and line wrapping, and safe handling of preformatted content. Core features cover: language-specific formatting, optional minification, configurable indentation, quote style, wrap length, and preservation of line breaks. Use cases span preparing code for PRs, integrating into CI, and standardizing style across multiple projects or teams. The tool emphasizes non-destructive formatting, avoiding semantic edits, and providing clear outputs for downstream tooling and diffs. This combination of depth, reliability, and automation supports faster development cycles and higher code quality in CSS/HTML workflows.

How to Use

Provide inputs: code_input, language, mode, indent_style, indent_size
Configure advanced options if needed: wrap_length, preserve_line_breaks, quote_style
Run formatting: execute the formatter to produce formatted_code
Review outputs: inspect formatted_code for consistency and diffs
Export or copy: copy results to clipboard or integrate into a pipeline

How to use css html formatter

Frequently Asked Questions

Find Quick Answers

Which languages are supported?
The tool formats CSS and HTML code, including embedded blocks. It can also handle template fragments containing CSS/HTML snippets. It does not validate syntax or fix semantic errors.
Will formatting change code behavior?
No. The formatter only reflows whitespace and indentation. Semantics, structure, and valid syntax are preserved; linting or semantic fixes are not performed.
Can I minify while formatting?
Yes. The tool offers a minify mode that removes redundant whitespace and comments where safe, producing compact output suitable for production.
How are preformatted blocks handled?
Preformatted blocks can be preserved via preserve_line_breaks. When enabled, internal line breaks within pre blocks are kept to maintain intended formatting in code samples.

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