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HTML Validator & Auto-Fix

Repair unclosed tags, missing attributes, and invalid nesting in your HTML markup.

⚡ 99 points per successful run · Balance: 0 · Buy points

HTML Input

Result

Enter HTML to validate or auto-format.

How to Use

Paste your HTML code into the editor. Use "Validate" to check for syntax errors or "Auto-Format / Fix" to beautify the code and attempt to fix common structure issues automatically.

About HTML Validator & Auto-Fix

Repair unclosed tags, missing attributes, and invalid nesting in your HTML markup.

How to use this tool

Enter the requested data or choose an upload.
Check the file type and size limit before submitting.
Review the result, then download or copy it.
Keep the original and use the actions above to continue safely.

Read the full HTML Validator & Auto-Fix guide →

HTML Validator & Auto-Fix♥