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Pretty print any HTML document into clean, indented, readable markup. Paste raw or minified HTML and get a beautifully formatted result instantly.
Pretty printing HTML transforms unformatted, minified, or inconsistently indented HTML into consistently structured markup where every element's nesting level is clearly visible. This makes HTML much easier to read, understand, and maintain — critical when debugging layout issues, reviewing code, or onboarding to a new codebase.
JSON Viewer Pro's HTML pretty printer uses the browser's native parser to understand the full document structure, then re-serialises it with clean, consistent indentation. Block elements are properly indented to show hierarchy. Inline elements keep their content on a single line to avoid introducing unwanted whitespace between words and inline links.
All processing runs in your browser with no network requests. This makes the tool safe for pretty printing HTML containing form tokens, session IDs, or API keys embedded as data attributes.
No. Only whitespace between block elements is modified. Text content, attributes, and data are preserved exactly.
Inline elements like span and a must stay on one line with their content to avoid introducing extra visual spaces in the rendered page.
Pretty print adds whitespace for readability. Minify removes all unnecessary whitespace to reduce file size. They are opposite operations.
JSON Viewer Pro — all processing runs locally in your browser. Your data is never sent to any server. Free to use, no account required.Privacy Policy·Contact