Email validator

About Email validator

Checks email format and common domain typos for one address or a pasted list in your browser. It does not verify that a mailbox exists.

Cleaning a mailing list should not mean uploading every address to a SaaS validator. Paste one email or a list, get format pass/fail, and see “did you mean gmail.com?” style suggestions when the domain is a near miss on popular providers via Levenshtein distance.

This is not SMTP probing and not deliverability. Claiming an address receives mail requires talking to mail servers and is easy to abuse. I will not do that from a static site. Format and typo hints are the honest scope.

Bulk mode is a table in the tab. Copy what you need. Nothing is stored after you leave.

Edge cases include plus-addressing (user+tag@domain.com), internationalized domains, and role addresses like postmaster@ that are valid but not marketing targets. Typo suggestions only cover a short list of major providers; a misspelled company domain will pass format checks and still bounce. IDN emails may look wrong in older clients even when the syntax is valid.

The address list is processed entirely in memory on this device. No row is POSTed to a validation API. That matters for customer exports, HR spreadsheets, and newsletter drafts you would not upload to a third-party “free email checker.” Close the tab and the table is gone.

How to use Email validator

1. 1Paste a single address or one address per line.
2. 2Read format results and any domain typo suggestions.
3. 3Fix the list in your editor using the table as a checklist.

What it won't do

• ·Format and typo hints only; no SMTP or mailbox verification.
• ·Typo suggestions cover common providers, not every domain on the internet.

Common questions

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