Scheme, host, port, path, query and fragment — parsed by your browser’s own URL engine rather than a regular expression that is wrong in a dozen perfectly legal cases. Nothing is sent anywhere, which matters for the signed links people paste into tools like this.
Paste anything — it comes apart as you type. Nothing leaves this tab.
Paste into the editor or open a file — everything you add stays in this tab, and you see exactly what the tool will work on before anything runs.
Your browser does all the work locally. Nothing is uploaded — what you paste never leaves this tab, so there’s nothing for anyone to store, scan, or leak.
Take the result to your clipboard or save it as a file. Close the tab and nothing of what you pasted remains.