About

What is HTML Corrector?

HTML Corrector is a web application for repairing and formatting pasted or uploaded HTML.

What it does

• Repairs markup — Closes open elements and corrects malformed tag nesting
• Formats the result — Adds consistent line breaks and indentation
• Accepts text or files — Paste a snippet or upload an .html or .htm file

HTML Corrector does not sanitize untrusted content. Use HTML Washer when you need to remove unwanted elements or attributes.

Use cases

• Repair a fragment with missing closing tags before adding it to a page
• Normalize overlapping or incorrectly nested elements
• Reformat dense markup so its structure is easier to inspect

Audience

• Developers repairing markup before using it in an application
• Site editors correcting HTML before publishing it
• Template authors inspecting and reformatting existing markup

Company behind

HTML Corrector is operated by Glueo, s.r.o., a software development company based in Prague.

Updated: September 7, 2026