Runs locally
Email Shape
A practical shape check, not a mailbox lookup.
Ctrl+Enter runs. Ctrl+Shift+Backspace clears.
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A practical shape check, not a mailbox lookup. Runs in the browser. Nothing is uploaded.
About this tool
Catch obvious typos in an email address, such as a missing @ or domain, before it ends up in a form or a database. The check looks at the shape of the address only.
How to use it
- 01
Type or paste the email address.
- 02
Read whether its format looks valid.
- 03
Correct it if needed.
FAQ
Frequently asked questions
Does it check that the mailbox exists?
No. It is a practical shape check; only sending a message proves the address works.
Why are some unusual addresses rejected?
The check follows common real-world rules rather than every edge case allowed by the email standards.