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✉️ Email Validator
Validate email syntax against RFC 5322 simplified rules. Paste one email or a list (one per line) — we report which are valid, which are malformed, and suggest fixes for common typos in popular domains (gmial.com → gmail.com).
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Examples
Valid
Input
alice@example.comOutput
✓ ValidTypo detected
Input
bob@gmial.comOutput
✗ Suspicious — did you mean gmail.com?Bulk
Input
10 emailsOutput
8 valid, 1 typo, 1 malformedFrequently asked questions
Does this check if the address actually receives mail?
No — syntax only. Real deliverability check needs SMTP verification, which requires server-side code and the recipient's consent.
Are plus addresses (alice+tag@gmail.com) valid?
Yes. Gmail and many providers support + tags for filtering. We accept them.
About this tool
Email Validator runs entirely in your browser using standard Web APIs. No data is sent to any server. The source for this tool is in our public GitHub repository.
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Why this tool
vs typical free web-tool sites
| 1vw | Typical free site | |
|---|---|---|
| Price | Free | Free |
| Signup required | No | Often (for premium features) |
| Ads inside the tool | No | Yes (banner + video) |
| Data sent to server | No (browser-only) | Yes (inputs analyzed for ads) |
| Total tools | 96 | Often <20 or scattered across sites |
| Bookmarkable URL per tool | Yes | Mixed |
| Loads in under 1s | Yes (static) | Often slow (ad tracking) |
| Multilingual | EN / ES / PT / FR / DE | Usually EN only |
| Open source | Yes | No |