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HTML Formatter Online
Pretty-print HTML markup with readable indentation.
Format HTML markup for easier review and editing. Paste the input, make the change, then read the result before you copy it elsewhere.
Validate accessibility and semantics separately.
Ready — input is processed locally.
This utility runs on the current device for the supported workflow. Kaazo does not need the pasted input to calculate the result.
HTML Formatter is a narrow tool on purpose
Format HTML markup for easier review and editing.
HTML whitespace isn’t always disposable
Indentation around block elements is usually cosmetic, but spaces inside inline text, preformatted content, scripts and styles can be meaningful.
Formatting can normalise browser-parsed markup.
clean copied HTML snippets
Clean copied HTML snippets. Inspect generated markup. Both jobs fit because they ask the tool to do exactly what its output is designed for, without adding an unrelated conversion.
Where HTML Formatter stops
Use a production HTML build pipeline for aggressive optimisation across templates, CSS and JavaScript together.
FAQ
What does HTML Formatter actually do?
Format HTML markup for easier review and editing.
What should I check before I use the output?
Indentation around block elements is usually cosmetic, but spaces inside inline text, preformatted content, scripts and styles can be meaningful. Formatting can normalise browser-parsed markup.
Does formatted or converted output prove the data is valid for my application?
No. HTML Formatter can perform the syntax or data operation described here, but your application can still impose its own schema, business rules, encoding or security requirements.
Related tools
After HTML Formatter, validate the output before feeding it into another transform. The data-format guide has broader context if you need it.