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Calctrove Calctrove

HTML Formatter

HTML Formatter

Beautify HTML with readable indentation for debugging and code reviews.

Output size

0chars

Uses stable 2-space indentation and preserves line breaks when possible.

File input

Choose a file

Click, drop, or paste from clipboard.

More actions
Input: manual
InputsText/FileManual input • Auto-updateWaiting
Input: manualLive update0 msScore 58/100 (Risky output)

Copy report details includes output + run metadata.

Your input is processed locally in your browser whenever possible. We do not store your data.

Flow
  • Parse HTML token stream from raw input.
  • Apply indentation and line-break formatting rules.
  • Return normalized readable HTML output.
Example

Worked example: compact markup

  1. 1 Input minified section tag with nested elements.
  2. 2 Formatter applies two-space indentation.
  3. 3 Each nested node is placed on readable lines.

Output HTML is easier to scan and maintain.

How
  1. Paste raw or minified HTML in the input area.
  2. Run formatter to generate readable output.
  3. Copy formatted code for commit or documentation.
Cases
  • Inspect generated HTML from page builders.
  • Normalize code style before sharing snippets.
  • Improve readability of copied minified markup.
Avoid
  • Assuming formatter validates business logic or accessibility issues.
  • Expecting malformed HTML fragments to always auto-correct perfectly.
  • Forgetting to re-run format after manual edits.
FAQ
Can this format full HTML documents?

Yes, both fragments and full documents are supported.

Does formatting change text content?

No, formatting targets whitespace and layout, not semantic content.

Is this the same as HTML validation?

No, formatter improves readability and does not replace a validator.

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