Email Validator — Catch Bad Addresses Before They Bounce

Syntax check, common-typo detection (gmial.com → gmail.com), disposable-domain flagging and structure breakdown — instant, private, no email is ever sent.

Quick answer: Free email validator: check address syntax (RFC-style), spot disposable-domain signups, and catch typos like gmial.com before they bounce. 100% browser-side.

Email addresses (one per line — bulk ok)

How to use

Paste one address (or a list) — one per line, bulk-friendly.
Get verdicts — valid/invalid syntax, typo suggestions, disposable flags.
Fix & copy — apply suggested corrections and re-run.

About this tool

A bounced email costs a customer. This validator runs the checks that don't need to send anything: RFC-style syntax parsing (local part, @, domain, TLD), typo detection against 30+ popular domains (gmial.com, hotmial.com, yaho.com…), disposable-domain flagging from a maintained blocklist of known throwaway providers, and a clean breakdown of every part. Use it to clean lists before campaigns or to test your sign-up form's validation logic.

FAQ

Does it send a test email?

No — everything is structural analysis in your browser; no email is sent, nothing is stored.

Can it confirm an inbox exists?

Not without contacting the mail server (SMTP probing), which most providers throttle or block — syntax+typo checks catch most bad data already.

What are disposable domains?

Throwaway inboxes (10-minute-mail style) — flagged so you can decide whether to accept them on your own sign-up forms.

Rate this tool

Your rating stays in this browser (local storage) — nothing is sent to any server.

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The complete email validator guide

Prefer the long version — a worked example, the mistakes people actually make, and answers to real questions? The blog guide Email Validator — Complete Guide, Mistakes & FAQ covers all of it step by step.

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Email Validator — Catch Bad Addresses Before They Bounce

How to use

About this tool

FAQ

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The complete email validator guide