Online Web Formatter

A formatter that standardizes web content across formats, aimed at developers and teams needing consistent, reusable formatting.

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1,388+
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 Online Web 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

The tool accepts text in multiple web-related formats and applies consistent, syntax-aware formatting rules. It normalizes whitespace, enforces chosen indentation, and applies line wrapping per a specified width. Conceptually, formatting operates on per-format grammars and AST-like structures to avoid introducing semantic changes. This yields output that is easier to read, review, and merge in collaborative environments. Benefits include faster code reviews, cleaner documentation samples, and reproducible diffs for pull requests. Typical use cases include preparing HTML templates, JSON payloads, CSS blocks, and JavaScript snippets for publication or integration tests. Unique value lies in cross-format consistency, deterministic key ordering for JSON when requested, and a non-destructive, non-linting approach focused on presentation and structure rather than semantics. Core features include formatters for HTML, JSON, CSS, JavaScript, XML, YAML, and Markdown; options for indentation style (spaces or tabs), indentation size, and wrap width; optional minification for production-ready output; and diagnostics reporting for syntax issues. Use cases span CI pipelines, documentation generation, and developer tooling where uniform formatting improves readability and reduces churn during reviews.

How to Use

  1. Provide inputs: paste source_text and select target_format.
  2. Configure indentation (spaces or tabs) and wrap_width.
  3. Enable optional minification if desired.
  4. Run formatter to generate formatted_text and diagnostics.
  5. Copy, export, or integrate the formatted output into your workflow.
How to use online web formatter

Frequently Asked Questions

Find Quick Answers

What formats are supported by the formatter?
Supported formats include HTML, JSON, CSS, JavaScript, XML, YAML, and Markdown. Each format is formatted using its canonical syntax rules and optional minification can be applied per format.
Can I sort JSON keys or preserve comments?
JSON key sorting is optional and can be enabled to produce a stable key order. Comment preservation is supported for formats that allow comments; otherwise comments are preserved as non-semantic tokens where possible.
How does it handle invalid input?
If syntax is invalid, the formatter returns a best-effort formatted output along with diagnostics describing found issues, enabling targeted fixes without failing the entire pipeline.
Is the tool suitable for automated pipelines?
Yes. It exposes deterministic formatting logic suitable for CI scripts and automation, returning both formatted_text and a diagnostics object to inform downstream steps.

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