HTML Tools
Format, check, and extract from HTML you paste. We do not fetch live URLs.
8 tools · 100% browser-based · No uploads · No signup
About these HTML tools
HTML tools format, minify, do a basic well-formedness check, extract text or elements, visualize the DOM tree, convert a tree to JSON, clean attributes, and count tags. They run on the markup you paste, not by fetching a live URL (that would be a server-side crawl).
The validator is a practical linter for unclosed tags and nesting mistakes. It is not the W3C Nu Html Checker. Browser HTML parsers are famously forgiving; these tools help you see structure before the browser silently fixes it.
Tools in this category
HTML Validator (Basic)
HTML validator online. Check for unclosed tags, invalid nesting, duplicate IDs, and common HTML errors. Validate HTML free in your browser.
HTML Formatter
HTML formatter and beautifier online. Format, prettify, or minify HTML with proper indentation. HTML pretty print free in your browser.
HTML → Text
HTML to plain text converter online. Strip all HTML tags and extract text content only. Remove HTML tags free—get clean text instantly.
Element Extractor
HTML element extractor online. Extract all links, images, meta tags, or scripts from HTML. Parse HTML elements free in your browser.
DOM Visualizer
Nested HTML is easy to write and hard to see. If a selector “should work” and doesn’t, the tree is the problem, not CSS.
HTML → JSON
HTML to JSON converter online. Convert HTML DOM structure to JSON representation. Parse HTML to JSON object free in your browser.
Attribute Cleaner
HTML attribute remover online. Remove inline styles, data attributes, classes, or empty attributes. Clean HTML code free in your browser.
Tag Counter
HTML tag counter online. Count occurrences of each HTML tag and see element distribution. Analyze HTML structure free.
How these tools run in your browser
Parsing uses DOMParser in the browser. Extraction walks the resulting tree. Formatting serializes with indentation. Attribute cleaning removes selected attributes without a full HTML rewriter. JSON conversion is a structural dump, not a semantic article extract.
Common Use Cases
- Pretty-print a minified template to find a missing </div>
- Strip tags to get readable text from an email HTML part
- List every href or img src in a fragment
- Remove inline styles or empty attributes before a CMS paste
- See tag frequency in a messy legacy page
Common Mistakes
Frequently Asked Questions
It stays in the tab. Still avoid pasting secrets. Prefer a redacted fragment.
The HTML parser may insert implied tags (tbody, html, body). Work on a fragment if you need byte-stable output.
No. Use dedicated a11y tools for contrast, names, and keyboard support.