HTML to XML Online — HTML Tags to XML Elements

Turn HTML tags into XML elements in your browser. Nothing is uploaded — conversion stays on this tab.

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HTML → XML — developer guide
HTML → XML converter with the same privacy guarantees as other FastMinify tools.

Examples

Basic example

Input

<article class="release"> <h1>FastMinify 2.1</h1> <p>Browser-local converters and minifiers.</p> <ul> <li>40 format converters</li> <li>Zero server uploads</li> </ul> </article>

Output

<?xml version="1.0" encoding="UTF-8"?> <article class="release"> <h1>FastMinify 2.1</h1> <p>Browser-local converters and minifiers.</p> <ul> <li>40 format converters</li> <li>Zero server uploads</li> </ul> </article>

Section fragment → XML

Input

<section id="hero"> <h2>Try FastMinify</h2> <p>No uploads — conversion stays in your browser.</p> </section>

Output

<?xml version="1.0" encoding="UTF-8"?> <section id="hero"> <h2>Try FastMinify</h2> <p>No uploads — conversion stays in your browser.</p> </section>

How to Convert HTML to XML

Paste an HTML fragment in the editor and click Convert. FastMinify parses it with the browser DOMParser (text/html) in this tab, then serializes that tree to XML. Markup is not uploaded — there is no server round-trip. When the input is a single-root fragment — one element child of body, like the article and section samples above — that tag is the XML root. The output starts with <?xml version="1.0" encoding="UTF-8"?> and does not wrap an extra <root> around that element. If you paste several top-level nodes (two paragraphs, mixed text and tags, or a body with more than one child), the serializer wraps them in <root>. A JSON body key from the HTML parser is never unwrapped into a bare XML document: that path always goes through <root>. That wrapper is how mixed fragments stay one XML document without inventing a fake html shell. Copy the result or download it after a successful conversion. To turn XML toward HTML tables and lists, use the sister page XML to HTML. That page keeps its own title and uses a different engine; it is not a lossless reverse of this serializer.

What This Conversion Preserves

The HTML parser lowercases tag names (DIV becomes div). Attributes survive on the matching XML element. Repeated sibling tags become repeated XML elements, not a single merged node. Comments and processing instructions are dropped: only element and text nodes are walked. A full HTML document is not a byte-accurate dump of <html> or <head>. Conversion uses doc.body children. A document title is included only when the parser builds a { title, body } envelope (not the single-element unwrap path); even then it serializes under <root>, not as a reconstructed <head>. Empty or void tags may serialize as self-closing (<br/>, <img …/>) when they have no inner markup. Browser DOMParser is required: this converter runs in the tab, not on a server. This is not a stylesheet transform, not schema validation, not HTML Tidy, and not XHTML polyglot output.

About these options

CSV exports: choose a delimiter (Auto follows locale — semicolon on /fr), RFC-minimal vs always-quoted fields, line endings, and whether to emit a header row. CSV imports: delimiter is auto-detected from the first line (comma, semicolon, tab, or pipe) — toggle whether row 1 holds column names. JSON output (XML, YAML, or CSV sources): indentation (including compact one-line) and optional recursive key sort. JSON → XML: toggle pretty-printing and indent width. YAML output: indent width, readable vs tighter layout, and deterministic string quoting (there is no source YAML file to “preserve”). XML comments are not represented in the intermediate JSON tree.

Related tools

Explore other converters from the same source format in the sibling links section.

HTML → XML FAQ

Privacy and limits

Is my HTML uploaded to a server?

No. Conversion uses the browser’s DOMParser in this tab. FastMinify does not receive the markup.

Does any HTML document become XSLT-ready XML?

No. A single-element fragment becomes that element as the XML root; several top-level nodes are wrapped in a root element. This is not an XSLT engine, schema validator, or HTML Tidy.

Can I download the XML?

Yes — use Download after a successful conversion.

HTML

Convert HTML to JSON, XML, YAML and Markdown.

Other converter families

Explore other tool categories

Minify

Shrink code and assets for production — minify JavaScript, CSS, HTML, JSON and XML before gzip or CDN deploy.

Unminify

Expand minified or compressed code — unminify JavaScript, CSS, TypeScript, SCSS, LESS, SQL, YAML and other formats when debugging or reviewing.

Encoding

Encode or decode Base64, URL components and HTML entities — client-side only.

Serialization

Serialize and deserialize PHP data structures beside JSON workflows.

JSON Tools

Validate, format, diff and explore JSON payloads — complementary to minifiers and converters.

SVG Tools

Preview, optimize with SVGO, export Data URI, resize, beautify, convert to JSX and validate SVG — all in your browser.

Beautify

Make code readable with consistent indentation — beautify JavaScript, CSS, TypeScript, SCSS, LESS, Markdown, GraphQL, SQL, YAML and more in your browser.

CSS preprocessors

Compile SCSS or LESS to standard CSS in the browser — pair with beautify or minify for a full stylesheet workflow.

Color & CSS Tools

Paste-local WCAG contrast checking with modern CSS color syntax — pair and matrix views, never uploaded.

DevOps & Infra

Terraform HCL format/validate/minify, Dockerfile format & lint, Docker Compose and .env validation.

CI/CD

GitHub Actions and GitLab CI — format YAML and check workflow/job structure in your browser.

Logs & observability

Line-oriented JSON/NDJSON and Nginx/Apache access logs — format, filter, validate, and CSV/TSV.

Kubernetes

Multi-doc manifests, structural validate, Ingress/Deployment starters, and Helm values formatting.

Networking / IP

CIDR, subnets, and IPv4/IPv6 helpers — in your browser.

Security & tokens

JWKS, X.509 certificates, and secrets scan — browser-local.

API & schemas

OpenAPI tools to format, validate, and lint your specs.

HTTP Tools

Paste-local cURL, HTTP messages, URLs, HAR files, and Cookie / Set-Cookie headers — format and inspect in your browser, never sent.

SEO / Web Tools

Generate meta tags, Open Graph, and Twitter Card output locally — previews simulated from your inputs, never fetched from your live site.

Developer utilities

Timestamps, UUID, ULID, Nanoid, cron, passwords, regex, slugify, number bases, case, text diff, and chmod — all client-side.

Text & Markdown

Count words, build Markdown TOCs, and clean line lists — all in your browser.

AI & LLM

Token counting, pricing estimates, and context-window fit — 100% browser-local.

Test Data

Synthetic field values for fixtures and DB seed — reserved-range phone numbers first.

Barcode labels

Draw Code 128, EAN-13, and UPC-A label images in the browser — PNG and SVG download, not a GS1 lookup.