Email Validator
WEBValidate email addresses — check syntax, domain and MX records and fix common typos, free in your browser.
One per line, or separated by commas, semicolons or spaces.
Enter one or more email addresses to validate them.
What is the Email Validator tool?
This email validator checks any email address for free, right in your browser — no sign-up, no list-cleaning upsell, and no address is ever stored or added to any list. Paste a single address or a whole batch separated by commas, semicolons or line breaks, and the email checker runs three layers of verification: a strict syntax check (exactly one @ sign, a valid local part, a properly formed domain and TLD, no spaces or illegal characters), a domain check, and an MX record check that confirms the domain actually runs a mail server able to receive email.
A built-in typo engine catches the misspellings behind most bounces — gmial.com becomes gmail.com, hotnail.com becomes hotmail.com, .con becomes .com — and offers a one-click fix. That makes the tool practical for verifying an email address before you hit send, cleaning up a signup sheet, or checking addresses collected from a form, and it works just as well on your phone as on a desktop.
Most email verification sites are lead-gen funnels for paid list-cleaning services. Carbide is not: the syntax and typo checks run entirely on your device, and the MX check sends only the domain name — never the full address — as a standard DNS query. Nothing is logged and nothing is kept. If you first need to collect the addresses out of a document, run them through the Email Extractor, then validate the list here.
How to use the Email Validator
- Type or paste one email address — or a list separated by commas, semicolons or line breaks — into the input field.
- Read the instant syntax verdict for each address: the @ sign, local part, domain format and TLD are checked as you type.
- Wait a moment for the MX check — a positive result means the domain runs a real mail server that can receive email.
- Apply any suggested typo fix (for example gmial.com → gmail.com) with one click.
- Fix or drop the failing addresses, then reuse the cleaned list in your form, CRM or mailing tool.
Frequently asked questions
How do I check if an email address is valid without sending a message?
Combine a syntax check with an MX record lookup — exactly what this tool does. The syntax check confirms the address is correctly formed, and the MX lookup confirms the domain operates a mail server that can accept email. Together they catch the vast majority of bad addresses without a single email being sent.
What are MX records?
MX (mail exchange) records are DNS entries that tell the internet which server receives email for a domain. If a domain has no MX records — or doesn't exist at all — mail to any address at that domain will bounce, so an MX check is a fast, send-free way to spot undeliverable addresses.
Does a "valid" result guarantee the mailbox exists and belongs to a real person?
No. The tool confirms the address is correctly formed and that the domain has a working mail server. Confirming a specific mailbox exists requires an SMTP-level probe or actually sending a message — which this tool deliberately never does.
How is this different from paid verifiers like Verifalia or Hunter?
Paid services add SMTP-level mailbox probing and catch-all detection, which matters for large cold-email lists. For everyday checks — signup forms, small lists, one-off addresses — syntax, domain and MX verification catches most problems, and here it's free, needs no account, and never adds your addresses to anyone's database.
Are my email addresses stored or shared anywhere?
No. Addresses are never stored, logged or added to any list. The syntax and typo checks run entirely in your browser; the MX check makes a DNS query containing only the domain name — the part before the @ never leaves your device.
Is it free, and can I validate a bulk list?
Yes — completely free, no sign-up, no artificial cap. Paste a list separated by commas, semicolons, spaces or one address per line; duplicates are collapsed case-insensitively and every unique address gets its own result row.
