XML Formatter & Validator

XML Formatter and Validator Online

Beautify, validate, and minify XML documents instantly with this free online XML formatter. Paste any XML — an RSS feed, sitemap, SVG, SOAP envelope, or Maven POM — and get properly indented, readable markup with syntax errors caught and pinpointed before they break your integration.

The validator checks well-formedness as you work: unclosed tags, mismatched elements, bad attribute quoting, and illegal characters are reported with clear messages. When file size matters, the minifier strips insignificant whitespace to produce the most compact valid document.

How to Format and Validate XML

Paste your XML

Drop in the document — config files, feeds, API responses, or exported data.
Validate automatically

The tool checks that the XML is well-formed and reports the location of any structural error.
Beautify or minify

Choose pretty-print for readable indentation, or minify to remove all optional whitespace.
Copy the output

Copy the clean XML back to your project with one click.

Why Use This XML Formatter?

Well-formedness validation

Unclosed tags, mismatched nesting, and attribute errors are caught with precise messages.
Clean, configurable indentation

Deeply nested documents become scannable with consistent indentation.
Built for real formats

Works great with RSS/Atom feeds, XML sitemaps, SVG, SOAP payloads, and Android/Maven config files.
Minify for production

Strip whitespace to shrink sitemaps and payloads without changing meaning.
No upload required

All parsing happens in the browser — enterprise SOAP payloads stay private.

Frequently Asked Questions

What does 'well-formed XML' mean?

Well-formed XML follows the core syntax rules: one root element, every tag closed, proper nesting, quoted attributes, and correctly escaped special characters. This tool verifies all of that instantly.

How do I fix 'mismatched tag' errors?

Paste the XML here and the validator points at the element where nesting breaks. The usual culprits are a missing closing tag or tags closed in the wrong order.

Can I validate an XML sitemap here?

Yes — paste your sitemap.xml to confirm it is well-formed before submitting it to Google Search Console. Malformed sitemaps are silently ignored by crawlers.

Does the formatter support attributes and namespaces?

Yes. Attributes, namespace declarations, CDATA sections, and comments are all preserved and formatted correctly.

JSON Formatter & Validator Beautify, minify, and validate JSON payloads with live syntax highlighting.
Syntax Converter (JSON to Code) Convert raw JSON into type-safe TypeScript, Dart, Python, Go, Kotlin, C#, or Rust models instantly.
Excel ⇄ JSON Converter Convert Excel and XLS spreadsheets to JSON, or turn JSON arrays into downloadable .xlsx workbooks — batch, multi-sheet, and fully in-browser.
PDF to JSON Converter Extract text, page structure, and metadata from PDF files into clean structured JSON — batch multiple PDFs at once, all in your browser.
Image to Text (OCR) Copy text from images, screenshots, photos, and scanned documents in 30+ languages — batch many images at once, powered by Tesseract OCR running entirely in your browser.
PDF Unlocker Remove owner-password restrictions or strip a known user password from PDF files — batch multiple PDFs at once, entirely in your browser.
Base64 Encoder / Decoder Encode strings and binary images to Base64 format or decode them back safely.
URL Encoder / Decoder Encode query parameters and paths for query strings, or decode URI-encoded targets.
UTM Campaign URL Builder Add UTM tags (source, medium, campaign) to any link, build tracked campaign URLs in bulk, or parse an existing URL's parameters — all in your browser.
JWT Encoder / Decoder Decode JSON Web Tokens to inspect header configs, claim payloads, and expiry times — or encode and HMAC-sign new HS256/HS384/HS512 tokens, all in your browser.
Regex Tester Test regular expressions live with highlight overlays, match group breakdowns, and a library of common patterns (email, URL, phone, IPv4, hex color).
Password & Hash Generator Create cryptographically secure passwords, UUIDs, MD5 and SHA256 hashes.
JSON ⇄ YAML Converter Convert JSON to YAML and YAML to JSON instantly in your browser — ideal for Docker Compose, Kubernetes manifests, and CI/CD pipeline configs.
YAML Formatter & Validator Format, beautify, and validate YAML in your browser — with dedicated builders and schema checks for OpenAPI specs and GitLab CI (.gitlab-ci.yml) pipelines.
JSON ⇄ CSV Converter Turn JSON arrays into spreadsheet-ready CSV files or parse CSV exports back into structured JSON, with delimiter options and type detection.
SQL Formatter & Minifier Beautify messy SQL queries with dialect-aware formatting for PostgreSQL, MySQL, SQLite, and more — or minify them to a single line.
Text Diff Checker Compare two blocks of text, code, or JSON side-by-side and highlight every added or removed line — nothing ever leaves your browser.
String Case Converter Convert text to camelCase, snake_case, kebab-case, PascalCase, CONSTANT_CASE, Title Case, and more — every variant generated at once.
HTML Entity Encoder / Decoder Escape special characters into named, decimal, or hex HTML entities — or decode entity-encoded strings back to plain text.
UUID / GUID Generator Generate random v4 UUIDs or time-ordered v7 UUIDs in bulk — up to 1000 at once, cryptographically secure, with copy-all and .txt export.

XML Formatter & Validator

XML Formatter and Validator Online

How to Format and Validate XML

Paste your XML

Validate automatically

Beautify or minify

Copy the output

Why Use This XML Formatter?

Well-formedness validation

Clean, configurable indentation

Built for real formats

Minify for production

No upload required

Frequently Asked Questions