Runs locally — nothing is uploaded
Result
Nothing yet — paste your data and run the tool.
How to use
- 1Paste a list of URLs or domains, one per line, or load a file.
- 2Pick the output: hostname, registered domain, origin (scheme, host and port) or clean URL.
- 3Tick the rules you need and press Normalize.
- 4Copy the result or export it as TXT, CSV or JSON.
The path, query string and fragment stay. The host is lowercased (unless you untick it), www. can be removed, a trailing slash is dropped and the scheme is kept only if the line had one.
With the Public Suffix List: shop.example.co.uk becomes example.co.uk, not co.uk. IP addresses are kept as they are.
A line without a usable hostname: plain words, broken URLs or a name without a dot. Untick “Drop invalid lines” to keep such lines unchanged.
No. All processing happens locally in your browser.
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