Domain Extractor
Paste a URL, a block of text, or a whole page of emails, and this free domain extractor returns every unique domain and host it finds — sorted and deduplicated. It is the fastest way to see exactly which sites appear in a list, log, or export. Everything runs locally in your browser, so your data never leaves your device.
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What is a domain extractor?
A domain extractor scans a block of text for every web address and email and returns the domain or host from each one. It looks for the host part of full URLs (https://sub.example.com/page) and for the part after the @ in an email (user@forum.example.org), then collects the unique values, lowercases them, and sorts them alphabetically. This matters because when you copy a list of links from a browser history, an analytics export, or a log file, the actual domains are buried inside long URLs. A domain extractor surfaces them in one clean column so you can spot repeat visitors, run competitor research, audit link sources, or build an outreach list. This tool is especially useful for SEO work, scraping cleanup, and marketing analysis, because it strips the noise and leaves you with a simple, deduplicated host list you can paste straight into a spreadsheet.
How to use
- Paste one or more URLs, email addresses or a block of text.
- Click Extract domains.
- Every unique domain is listed, deduplicated and sorted.
Example
Paste: https://api.example.com/v2/users and user@forum.example.org and sub.example.com — the tool returns api.example.com, forum.example.org and sub.example.com as a sorted, deduplicated list.
Common use cases
- Competitor and backlink research — list every domain in a link or anchor export.
- Cleaning browser history, email exports or app logs into a bare host list.
- Building an email or outreach list from a mixed text file.
- Auditing which external sites a page loads or references.
Pro tips
- Paste the full text, not just one URL — the tool scans anything and ignores duplicates.
- Results are lowercased and sorted, so repeated hosts collapse into a single line.
- For email, you get the host after the @; add logic to isolate just the user if needed.
- Pair it with the URL parser to see path, query and subdomain details of each link.
FAQ
What does a domain extractor do?
It scans a URL or a block of text and returns every unique domain and host it can find, so you can see which sites appear in a source.
Can it find domains inside email addresses?
Yes — it reads both full URLs and email addresses and returns the host part, for example forum.example.org from user@forum.example.org.
Is the output deduplicated?
Yes. Every domain appears once, lowercase and sorted alphabetically, so repeated hosts collapse into a single line.
Does it keep subdomains?
Yes. It returns the full host, so api.example.com and example.com are listed separately. Use the trim-to-root-domain tool if you want the registrable domain only.
Is it private?
Yes — it runs entirely in your browser and nothing is uploaded.
What formats of text does it accept?
Any text that contains URLs or emails: plain lists, HTML, logs, JSON, CSV cells or a copied page.
Does it handle http and https?
Yes — it reads both http:// and https:// URLs, and also plain hostnames that look like domains.
Is it free?
Yes, free and unlimited with no signup and no limits.
Related URL tools
More FAQs
Are these URL tools free?
Yes, free and unlimited with no signup.
Is my data uploaded?
No. Everything runs in your browser and nothing is sent to a server.
Related searches
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