Shared username email finder: same name, different email domain
In short: Upload a list or paste a column of addresses and see every name that is used before the @ on two or more domains, grouped by whether the domains are personal or company. Limit: It reads the text only; the same name on two domains may be two people.
Upload a list or paste a column of addresses and the tool finds every name that appears before the @ on two or more domains, such as the same name at a Gmail and an Outlook address. Role names like info and sales are left out. You see each group, whether the domains are personal or company, and download them.
Price: this tool is free. Checking a whole email list is from $9/mo, and the first 100 checks are free with Google, no card. Check your list free nowSee pricing
Sample result
Nine example addresses hold 3 names used on more than one domain; info is left out as a role.
- Shared names
- 3
- Addresses read
- 9
- Personal only
- 1
What this means for you
The same name at two personal mailboxes is the likeliest to be one person.
- Plus tags dropped
- Role names left out
- Personal or company
- Groups as a CSV
- Duplicates
- Usernames
- Lead list
By SimpleVerifier Team · Last updated · Runs in your browser; nothing you paste is sent to us
Shared names found, now check which addresses are live.
- Download the groups, remove the extra addresses, and keep the list.
- Upload or paste it at /verify. Every address gets a live mailbox check, and the first 100 email checks are free with a Google sign-in, no card.
How do I find the same username on different domains?
- Upload the list as a CSV or .xlsx, or paste the cells with the header row first. It needs a column of email addresses.
- Press Find the shared names.
- Read each group: the name and every address that uses it. Personal-only groups are the likeliest to be one person.
- Download the groups, keep the address you want for each person, then check what is left.
Example
- You enter
- Example list of nine addresses: ava.stone at gmail.com and outlook.com, ben.hart at two company domains, cara.lin at gmail.com and a company domain, info at two company domains and dev.rao at example.net.
- You get
- Nine addresses read, 3 shared names: ava.stone (personal mailboxes only), ben.hart (company domains only) and cara.lin (personal and company). info is on 2 domains and is left out as a role name.
- Limits
- Runs in your browser. The same name on two domains may be one person or two.
What counts as a shared username?
The part before the @ is lower-cased and any +tag is dropped. A name is shared when two or more different domains carry it. Names under four characters, names that are only digits and role names such as info, sales and support are left out, since many companies use those.
Is it the same person?
Sometimes. The same name at a Gmail and an Outlook address is often one person who signed up twice; the same name at two company domains is often two different people. That is why groups are marked personal only, personal and company, or company only. To merge people by name and company, use the duplicate contact finder; for one person's Gmail dots and tags, the Gmail address normalizer.
What should I do with a group?
Keep one address for the person and move the rest to a separate list, or check them all and keep the ones that accept mail. Read find duplicate contacts with different emails for the steps, and to clear exact repeats first use remove duplicate emails.
Who uses this tool, and for what?
- Newsletter owners
- Find people who joined with two addresses.
- Sales ops
- Find contacts that appear with a work and a personal address.
- Cold emailers
- Avoid mailing one person twice from a merged list.
What can’t this tool tell you?
- It reads the text only; the same name on two domains may be two people.
- Role names and names under four characters are left out.
- It does not look up whether either address exists.
- Names that differ by a dot or a letter are separate; use the near-duplicate finder for those.
Common questions
- Why are info and sales not listed?
- They are role names used by many unrelated companies, so sharing them says nothing.
- Does a plus tag change the name?
- The tag is dropped, so ava+news@ and ava@ count as the same name.
- Are short names compared?
- Names under four characters are left out because many people share them.
- Can it tell if it is the same person?
- No. It shows where the same name appears and whether the domains are personal or company.
- What are personal domains?
- Public mailbox and internet provider domains, such as gmail.com.
- Is my list uploaded anywhere?
- No. The list is read in your browser.
A tidy list can still be full of dead addresses.
Extracting, deduplicating and syntax checks all work on the text of an address. None of them can tell whether the mailbox exists. Only the server that hosts it can answer that, through an SMTP check, and that is what the paid product does.
- Upload the cleaned file as it is: CSVs up to 100,000 rows
- A real SMTP mailbox check on every row, with catch-all detection
- Small list? Starter at $9/mo covers 2,500 emails a month, cancel anytime
Plans from $9 a month, cancel anytime, no contract. Sign in with Google and your first 100 email checks are free, no card. The free tools stay free either way.