Free email typo and format checker
Paste your email list to find bad formats, typos like gmial.com, shared addresses, temporary emails and duplicates. Free, no signup, and your list never leaves your browser.
What this tool checks
- Format: missing @, double dots, spaces and other mistakes that make an address invalid.
- Typos: common provider and ending mistakes such as gmial.com, hotmial.com, yaho.com and .con, with the fix suggested.
- Shared addresses: info@, sales@, support@ and similar. They can work, but several people read them and replies are rarer.
- Temporary emails: throw-away addresses that are rarely worth sending to.
- Duplicates: the same address twice.
Questions
Does it check if the mailbox exists?
No. It only finds problems that can be seen from the address itself. The email checker asks the mail server whether the mailbox exists, and returns Passed, Failed or Unknown.
Is my list uploaded anywhere?
No. Everything runs in your browser, so your list stays on your computer.
Is it really free?
Yes, with no account needed. Learn more in our guides on verifying a list before sending and bounce rates.