How to use this developer tool
- Paste one URL or relative path per line.
- Provide a base URL for relative paths.
- Choose sitemap options.
- Download the generated XML.
#075 · Web Meta & Server Files Developer Tool
Sitemap Generator
Convert URL lists into valid XML sitemap output with duplicate removal, URL normalization, last-modified dates, priority, and split warnings.
Developer Input
Web Meta & Server FilesAd space
What this developer tool does
The generator validates URLs, normalizes relative paths, removes duplicates, escapes XML entities, and builds a standards-compatible urlset.
Split input → resolve relative URLs → remove fragments and optional tracking parameters → deduplicate → escape XML → build urlset.
Large sitemaps should be split before reaching the standard URL-count or uncompressed-size limits.
Example
A list of homepage, about, and product URLs becomes an XML urlset with optional lastmod and changefreq elements.
Tips for better output
- Use canonical absolute URLs from one host.
- Do not include URL fragments.
- Only update lastmod when page content meaningfully changes.
FAQ
How do I generate an XML sitemap from a list of URLs?
Paste one URL per line and generate a urlset with escaped loc elements.
How do I add lastmod dates to a sitemap?
Enable lastmod output to add the current ISO date to each generated URL entry.
Can a sitemap contain relative URLs?
Relative paths must be resolved against an absolute base URL before output.
How do I remove duplicate URLs from a sitemap?
Enable duplicate removal after URL normalization.
When should I split a sitemap into multiple files?
Split it before exceeding the sitemap protocol URL-count or uncompressed file-size limits.
Related developer tools
Sitemap fields
| Field | Purpose |
|---|---|
| loc | Canonical absolute URL |
| lastmod | Last meaningful modification |
| changefreq / priority | Optional crawler hints |