URL to Hostname Converter

The URL to Hostname Converter strips every URL in your list down to just its hostname, discarding the protocol, path, query string, port, and any credentials. Paste a column of links and you get back a clean list of host names such as example.com or blog.example.co.uk, ready for analysis, allow-listing, or reporting.

It handles the messy realities of real URLs: it removes an http or https scheme, ignores everything after the first slash, drops a port number, and strips userinfo that appears before an at sign. You can optionally remove a leading www so that www.example.com and example.com collapse into a single host.

Everything runs locally in your browser using JavaScript, so even large URL exports are processed instantly and privately. Analysts building traffic reports, security teams compiling allow-lists, and developers normalising link data can all pull hostnames in bulk without writing a parsing script.

Features

• Extracts the hostname from each URL, removing protocol, path, query, fragment and port automatically.
• Strips userinfo credentials that appear before an at sign so only the true host remains.
• Optionally removes a leading www prefix so host variants collapse into one canonical name.
• Optionally deduplicates the output so each hostname appears only once in the final list.
• Processes an entire list at once, one URL per line, for fast bulk conversion.
• Reports how many URLs were read and how many unique hostnames resulted for a quick sanity check.
• Runs fully client-side, so large or sensitive URL exports never leave your browser.

How to use URL to Hostname Converter

1. Paste your URLs into the input box, placing one URL on each line.
2. Choose whether to strip a leading www from each hostname using the option.
3. Decide whether to deduplicate the results so repeated hosts collapse into one.
4. Read the cleaned list of hostnames in the output area.
5. Copy the list or download it as a text file for use elsewhere.

Benefits

• Analysts turn a column of referrer URLs into hostnames to group traffic by site.
• Security teams build allow-lists or block-lists from raw URL logs quickly.
• Developers normalise link data before storing or comparing it across records.
• Marketers count how many distinct domains link to a page from an export.
• SEO specialists deduplicate backlink domains to gauge referring-domain totals.
• Because processing is local, confidential URL exports stay entirely on your device.

A hostname is the part of a URL that identifies the server, sitting between the scheme and the path. Isolating it is a surprisingly common need: reporting tools group by host, firewalls filter by host, and deduplicating by host tells you how many distinct sites are involved rather than how many individual pages.

The converter is careful about edge cases that trip up naive splitting. URLs can include a port after a colon, credentials before an at sign, uppercase letters in the host, and a www prefix that may or may not matter for your analysis. Handling all of these consistently means the output is reliable enough to feed straight into another tool.

All extraction happens in your browser with JavaScript, so nothing you paste is transmitted or stored, keeping sensitive log exports private. Because hostnames are lowercased for consistency, the output is directly comparable, which is exactly what you want when deduplicating or joining against another list of domains.