HTML Formatter for Config Files

About This Tool

Configuration files are at the heart of modern software development — from package.json and tsconfig.json to VS Code settings and cloud infrastructure templates. This HTML Formatter for Config Files is tailored for processing HTML configuration files with the precision and care they require. Configuration files often contain comments (in formats that support them), version-specific settings, and carefully structured hierarchies that must be preserved during formatting. The tool processes these files while maintaining all data integrity, ensuring that indentation reveals the logical structure of configuration sections, nested settings, and conditional values. Whether you are cleaning up auto-generated configuration, merging settings from multiple sources, or preparing config files for documentation, this tool handles the task reliably.

What is HTML Formatter?

An HTML formatter transforms unformatted or single-line HTML into cleanly indented markup with proper nesting, line breaks, and consistent indentation. It recognizes HTML elements, self-closing tags (br, img, input, etc.), and nesting levels to produce visually clear code structure. Properly formatted HTML is easier to read, debug, and maintain. It helps developers quickly identify nesting errors, missing closing tags, and structural issues. The formatter processes the HTML in a single pass, tracking indent levels as tags open and close, producing clean output that follows common HTML coding conventions.

How to Use This Tool

1. Paste your HTML.
2. Click Format HTML.
3. View properly indented output.
4. Copy the formatted code.

Common Use Cases

• Formatting package.json for readability
• Cleaning up tsconfig.json and eslint configs
• Processing VS Code settings.json files
• Normalizing docker compose JSON overrides

Explore More Variations