Sitemap Splitter and Merger
Split a sitemap that is over the 50,000 URL limit into smaller files with a matching sitemap index, or merge several sitemaps into one clean list without duplicates.
- 100% free
- No sign-up
- Runs in your browser
Sitemap 1
Sitemap 2
Only used to build a sitemap index when the result is over 50,000 URLs.
Sitemap size limits
Each sitemap can hold up to 50,000 URLs and 50 MB of uncompressed XML. Anything past that is ignored. Large sites solve this by splitting URLs across several sitemaps and listing them in a sitemap index, which can itself point to up to 50,000 sitemaps.
Splitting a sitemap
- Choose how many URLs go in each file. 50,000 is the maximum; 10,000 to 25,000 keeps files small and easy to check.
- Enter the base URL where you'll upload the files. The index lists each file at that address.
- Each index entry gets the newest lastmod date from its file, so search engines know which file changed.
Merging sitemaps
Merging is useful when several plugins or tools each make their own sitemap, or after combining two sites. The tool keeps one copy of each URL with its latest lastmod. If the result has more than 50,000 URLs, it is split automatically and a sitemap index is added.
All files are built in your browser. Sitemap URLs are read through Hypello's server, which accepts files up to 5 MB each. Upload larger files directly.
How it works
How to use it
- Step 1
Pick split or merge
Split one large sitemap into smaller files, or merge several sitemaps into one list without duplicates.
- Step 2
Add your sitemaps and settings
Load sitemaps by URL, paste or upload. For splitting, set the URLs per file and the address where the files will live.
- Step 3
Download the files
Download each sitemap and the sitemap index, upload them to your site and submit the index in Google Search Console.
FAQs
Frequently asked questions
Answers to common questions about the Sitemap Splitter and Merger.
When it has more than 50,000 URLs or is larger than 50 MB uncompressed. Search engines stop reading a sitemap past those limits. Smaller files are also easier to monitor, because Search Console reports indexing per sitemap.
A sitemap index is a small XML file that lists your sitemap files. You submit the index once, and search engines find every sitemap in it. The tool builds it from the base URL you enter, so the addresses must match where you upload the files.
Each URL is kept once. If the same URL appears in several sitemaps, the tool keeps the most recent lastmod date and fills in changefreq or priority from whichever copy has them.
Yes. They are copied to the new files exactly as they were. Image, video, news and hreflang tags are not carried over, and the tool warns you when the source contains them.
Browsers ask before a page downloads several files at once. Allow it, or download the files one by one with the buttons next to each file.
No. Files are built in your browser. Sitemap URLs are fetched through Hypello's server only because browsers can't read other sites directly, and nothing is stored.
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