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XML sitemap generator

Generate a valid XML sitemap for search engines from a simple list of pages. Each line is a URL — relative paths are resolved against your site URL — and you can append a lastmod date, a changefreq and a priority per row, or set sensible defaults for all of them. Output is standards-compliant urlset XML, ready to publish.

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XML sitemap generator is free to use as often as you like, directly from this page. Its place is under JSON, XML & formats; XML Formatter / Validator and JSON to XML converter answer the questions closest to this one.

How to use it

  1. Open the tool — no signup or install needed.
  2. Enter your input or adjust the available options.
  3. Get your result instantly, then copy or download it.

Frequently asked questions

What does XML sitemap generator do?

Generate a valid XML sitemap for search engines from a simple list of pages. Each line is a URL — relative paths are resolved against your site URL — and you can append a lastmod date, a changefreq and a priority per row, or set sensible defaults for all of them. Output is standards-compliant urlset XML, ready to publish.

What does a concrete case look like?

<url><loc>https://example.com/a</loc><lastmod>2026-03-01</lastmod></url> — the tool shows every step in between, not just the final figure.

When would I actually use this?

Making a machine-generated blob readable, finding the character where a parse fails, and shrinking a file before it ships.

What is the most common mistake?

Assuming valid means correct. A document can parse cleanly and still have the wrong shape for whatever will read it — validation checks the syntax, not the schema.

How is XML sitemap generator different from XML Formatter / Validator?

They sit next to each other but answer different questions: XML Formatter / Validator is the one to open when you need it to pretty-print, minify and check whether XML is well-formed, all in your browser. Pick whichever matches what you're starting from — both are free.

Is there a tool for the next step?

JSON to XML converter is the closest one after this: Convert a JSON object into formatted XML.

Where do the figures come from?

Parsing and serialisation follow each format's specification. Key order and whitespace are not semantically meaningful in JSON or YAML, so a reformatted document is equivalent even when the bytes differ.

Further reading

All guides →
How-toHow to Write a robots.txt: Directives, Matching, and What It Cannot HideFour directives, two wildcards, one file at the host root. It is a crawl instruction and nothing more — it does not remove a page from search results, it does not restrict access, and it publishes every path you list in it.ExplainerXML to JSON: Attributes, Repetition, and the Single-Element Array TrapTwo documents that differ only in how many children exist produce two different JSON shapes, and no converter can tell them apart without a schema. Plus what this one really does with attributes, mixed content and whitespace — and the one thing it still cannot record.ExplainerYAML Looks Friendly and BitesYAML is JSON plus a type-inference layer, and the inference is the dangerous part. The same file run through a YAML 1.2 parser and a YAML 1.1 parser: no is a string in one and false in the other, 01234 is 1234 in one and 668 in the other, and 12:30:00 is a number in one of them.GuideWhat a Minifier Can Remove, and What It Must NotMinification has to preserve meaning, and the interesting part is the whitespace that carries meaning: the descendant combinator, the spaces inside calc(), the gap between two inline elements. Measured here on real files, including how much brotli was going to save you anyway.ComparisonJSON vs XML: What's the Difference?JSON and XML both store structured data as text, but they trade off differently. Here's how each looks, where each wins, and how to choose.GuideBeautify or Minify: What Each Is For, and What It Does to the WeightFour real stylesheets run through the minifier, measured raw and after gzip. Stripping every space saved 48, 103, 104 and 147 compressed bytes; stripping comments saved 57, 1 358, 2 420 and 1 042. Plus the five inputs this minifier breaks.