Does it work without a protocol (http://)?

Yes. Domains written without a protocol, like www.example.com, are also recognized.

Are subdomains extracted separately?

Yes. The full hostname including subdomains, like pdf.developk.kr, is extracted as-is.

Is the text I enter sent to a server?

No. Everything is processed inside your browser.

Are subdomains separate entries?

Yes — cdn.example.com counts as its own item. Group by the last 2-3 labels for registered domains.

Are Korean domains recognized?

Mixed results depending on the pattern — Punycode (xn--) is ASCII and is recognized.

🕸️ Domain Extractor

Extract domain names from text or a list of URLs and remove duplicates.

Paste text

0 found

Extracted domains

How to use

Paste text or a list of URLs containing domains.
Click "Extract".
A deduplicated list of domains is shown.

🎯 Use Cases

Pull a list of accessed domains from a log file
Collect sites mentioned in an email body
Tidy up a URL list for a marketing report

Example

Input

https://www.developk.kr/path?query=1
See also: pdf.developk.kr and http://Blog.Example.COM/post
image-tools.developk.kr
Visit www.developk.kr again

Output

blog.example.com
image-tools.developk.kr
pdf.developk.kr
www.developk.kr

From a mix of URLs and prose, only the hostnames are pulled out. Protocols such as http:// are stripped, letters are lowercased (Blog.Example.COM → blog.example.com), the duplicate www.developk.kr is kept just once, and the results are sorted alphabetically.

How domains are extracted

Pulls out strings in example.com form from any text and tidies them.

Element	Details
Recognition	Domain + TLD — example.com, sub.site.co.kr
Normalization	Strips protocol, www, path and query — keeps the domain
Output	Deduplicated, one per line
Input	Paste whole logs, URL lists or HTML source

FAQ

Does it work without a protocol (http://)?: Yes. Domains written without a protocol, like www.example.com, are also recognized.
Are subdomains extracted separately?: Yes. The full hostname including subdomains, like pdf.developk.kr, is extracted as-is.
Is the text I enter sent to a server?: No. Everything is processed inside your browser.
Are subdomains separate entries?: Yes — cdn.example.com counts as its own item. Group by the last 2-3 labels for registered domains.
Are Korean domains recognized?: Mixed results depending on the pattern — Punycode (xn--) is ASCII and is recognized.