Bulk URL Validator
Check HTTP and HTTPS URL syntax, credentials, whitespace and duplicates in a local list.
One value per line, up to 10,000 lines and 2 MB. Original line numbers are preserved. Blank lines are skipped. Input is held in this tab only.
Check your list
Ready. Checks run on this device; this tool does not upload your input.
What the result means
Requires an explicit HTTP or HTTPS scheme and a hostname, and rejects embedded credentials and whitespace. This is a syntax check only: it does not visit links, check redirects, test reachability or certify that a destination is safe.
Duplicate checks use exact trimmed text and remain case-sensitive. No emails are sent and no remote URLs are fetched. CSV exports escape spreadsheet formula prefixes.
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