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description=Format your HTML code online with our free tool. Clean, efficient, and easy to use.;

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Text of the page (random words):
html code formatter online tool w3docs w3docs libri imparare html impara css imparare javascript imparare git imparare java imparare php imparare python corsi quiz esercizi snippet strumenti general tools html editor password generator html encoder code diff json beautifier tutti i 13 color tools color picker color converter color mixer color hex colors hsl tutti i 10 string tools string length calculator md5 hash generator sha256 hash generator string reverse url encoder tutti i 19 code formatters javascript formatter css formatter html formatter json formatter php formatter cerca in w3docs k it english en deutsch de русский ru français fr español es português pt italiano it accedi home tools code formatter tools html code formatter paste your html code and click format to clean it up with prettier tab size and for js ts trailing semicolons are configurable switch languages from the toolbar html css less scss javascript typescript json php format load example copy clear tab size about the html formatter the html formatter re indents raw html it fixes nesting and indentation wraps long attribute lists one per line once a tag exceeds prettier s print width normalizes attribute quoting to double quotes class foo becomes class foo and self closes void elements like img and br with a trailing slash it doesn t add remove or reorder tags only whitespace and quoting change paste in collapsed or inconsistently indented markup from a minifier a cms export or browser view source and get back something readable formatting runs entirely in your browser the html never leaves your machine which matters if you re pasting markup from an internal admin panel or an unreleased page under the hood this is prettier 3 s standalone build running prettier plugins html the same parser prettier s cli uses for html files loaded dynamically so the page doesn t ship parsers for languages you aren t formatting tab size maps directly to prettier s tabwidth option 1 8 default 2 semicolons is disabled here because prettier ignores the semi option for non javascript parsers the parser is forgiving like a browser unclosed tags get auto closed per html5 rules instead of being rejected only genuinely malformed markup an unterminated opening tag a stray mismatched closing tag throws a syntax error shown inline with the line and column reach for it when cleaning up markup before a code review standardizing indentation across a template pulled from a legacy cms or making minified html readable enough to debug one limitation worth knowing only the html parser plugin loads here so embedded style and script blocks are re indented as blocks but the css or javascript inside them is not reformatted its original spacing is preserved as is if you need that inner content cleaned up too format it separately with the css formatter or the javascript formatter and paste the result back in examples re indenting collapsed markup html input nav class menu ul li a href home a li li a href about about a li ul nav output tab size 2 the default nav class menu ul li a href home a li li a href about about a li ul nav verified against prettier 3 8 3 via prettier plugins html the exact code path this tool runs embedded css and js keep their original formatting html input style a color red font size 12px style script function foo console log 1 script output the block re indents but inner css js is untouched style a color red font size 12px style script function foo console log 1 script only the html parser plugin loads for this formatter so nested css js isn t reformatted run it through the css formatter or javascript formatter separately if you need that cleaned up too malformed markup throws an inline syntax error text input div class oops broken text div error shown inline opening tag div not terminated 1 1 1 div class oops broken text div ordinary unclosed tags don t error only genuinely broken syntax does here an unescaped quote inside the class attribute frequently asked questions is it safe to paste private or unreleased html into this tool yes formatting runs entirely in your browser using prettier s standalone build the markup is never uploaded to a server logged or stored anywhere does the html formatter also format the css and javascript inside a page no this tool only loads prettier s html parser plugin prettier plugins html so style and script blocks are re indented as a single block but the css or js inside them keeps its original formatting format that content separately with the css formatter or javascript formatter why am i getting a not terminated or unexpected closing tag error that means prettier s html parser hit markup it genuinely can t make sense of such as a broken attribute or a closing tag with no matching opener and it throws a syntaxerror naming the exact line and column ordinary unclosed tags aren t an error on their own the parser auto closes them the same way a browser s html5 parser would does the semicolons checkbox do anything for html no that toggle only affects the javascript and typescript formatters prettier ignores the semi option for the html parser entirely so the output is identical whether it s checked or not how is this different from running prettier write on an html file locally same engine and the same html parser so output matches for a given tab width this page only exposes the tabwidth option other prettier settings like printwidth the line wrap length default 80 stay fixed here install prettier locally if you need to tune those related tools css formatter format the css inside style blocks this tool re indents them but doesn t touch the css itself javascript formatter format the js inside script blocks for the same reason html encoder decoder escape or unescape html entities e g before embedding markup as literal text code diff diff the formatted output against the original to review exactly what changed learn more lesson html elements covers paired vs void elements relevant to why this tool self closes tags like img and br lesson html block and inline elements the block inline distinction that drives many of prettier s whitespace decisions lesson html attributes background on attribute syntax useful given this tool normalizes attribute quoting w3docs tutorial esempi esercizi snippet e quiz gratuiti per il web dal 2014 libri imparare html impara css imparare javascript imparare git imparare java imparare php imparare python pratica esercizi quiz editor try it strumenti html editor password generator html encoder code diff json beautifier azienda informazioni contatti informativa sulla privacy lingua english deutsch русский français español português italiano 2026 w3docs tutti i diritti riservati realizzato per gli sviluppatori