Syed Waleed

Check email syntax, catch domain typos, and flag disposable inboxes — all in your browser. Free, no signup.

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Email Validator — Is This Email Address Valid?

Paste an email address and instantly check its syntax, catch common domain typos, and flag disposable temporary inboxes — before you add it to your list or hit send.

Try one: · · ·
Honest limit — please read: this tool runs 100% in your browser, so it cannot check MX records or SMTP deliverability, and it can never confirm that a mailbox actually exists. A "Valid" verdict means the address is well-formed and passes every check a client-side tool can run — it is not proof the inbox is real.
Valid
About MX and SMTP checks: confirming a mailbox requires a server-side DNS lookup (MX records) and an SMTP handshake — neither is possible from a browser page, and any site claiming to do it client-side is guessing. For deliverability confirmation, use your email provider's bounce handling or a dedicated server-side verification service.
100% private

Addresses are checked in your browser only. Nothing you type is uploaded, logged, or stored anywhere.

No signup

No account, no email, no app. Paste an address and validate it instantly.

Free forever

Unlimited email checks — free, no limits, no API keys.

How to use the email validator

  1. 1Paste the address

    Type or paste one email address into the box — or tap a sample above to see how each verdict looks.

  2. 2Hit Validate

    The tool runs syntax checks, a disposable-domain check, and a typo check instantly, right in your browser.

  3. 3Read the verdict

    Valid means well-formed and clean. Risky means usable-looking but suspicious (typo or temporary inbox). Invalid means it cannot receive mail as written.

  4. 4Fix typos in one tap

    If a typo is spotted, tap "Use this instead" to swap in the corrected address and re-validate.

Why people use this validator

RFC-style syntax checks

Goes beyond a simple regex: length limits, dot rules, hyphen rules, and illegal characters are all checked separately, with a reason for every failure.

Typo detection that saves signups

Spots gamil.com, yaho.com, hotmial.com, and dozens of other near-misses of popular providers, and offers the correction in one tap.

Disposable inbox detection

Flags temporary mail services like Mailinator and GuerrillaMail, so throwaway signups do not pollute your list.

Honest about its limits

It states plainly that it cannot verify MX records or mailbox existence — no false "deliverable" promises, ever.

Fully private

Because everything runs client-side, your addresses never leave your device — safe for customer lists and personal inboxes alike.

Works on your phone

Validate an address the moment someone hands it to you — fully responsive and touch-friendly.

Email validator FAQs

Can this tool tell me if an email address really exists?
No — and any purely browser-based tool that claims to is misleading you. Confirming a mailbox needs a server-side MX lookup and SMTP check. This tool verifies everything that can be verified client-side: syntax, domain shape, typo likelihood, and whether the domain is a known temporary-mail service.
What does a "Risky" verdict mean?
Risky means the address is well-formed but has a warning sign: either it uses a disposable temporary-mail domain, or its domain looks like a typo of a popular provider (for example gamil.com instead of gmail.com). It might still work, but double-check it before trusting it.
What makes an email address invalid?
Common failures include a missing or double @ sign, spaces, consecutive dots, a dot or hyphen at the start or end of the domain, a missing top-level domain, a local part longer than 64 characters, or a total length over 254 characters. The tool lists the exact reason for every failure.
What is a disposable email address?
A disposable (temporary) email is an inbox that self-destructs after minutes or hours, offered by services like Mailinator, GuerrillaMail, and 10 Minute Mail. People use them to sign up without revealing a real address — which is why mailing lists and signup forms often want to flag them.
Why does it suggest a different domain?
If the domain you typed is one or two keystrokes away from a well-known provider (gmail.com, yahoo.com, outlook.com, and others), it is almost certainly a typo. The suggestion is just a suggestion — if the domain is genuinely a small private domain, ignore it.
Is my email address stored anywhere?
No. The check runs entirely in your browser. The address is never sent to a server, logged, or stored — close the page and it is gone.
Can I validate a whole list of emails?
This page validates one address at a time, so you can inspect each verdict and reason. For bulk list cleaning, use a server-side verification service that can perform real MX and SMTP checks.

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