free email verifier
that actually works
Verify any email address instantly. Our free email verifier goes beyond simple pattern matching with real SMTP verification to confirm if a mailbox actually exists.
What our free email verifier checks
Every email you verify goes through multiple validation layers. Free accounts get 1,000 verifications per month with full API access.
Syntax Validation
Checks email format against RFC 5322 standards. Catches typos, missing domains, and invalid characters.
MX Record Lookup
Verifies the domain has valid mail servers configured. Filters out non-existent and parked domains.
Disposable Email Detection
Identifies throwaway email addresses from 100,000+ known disposable email providers, updated daily.
SMTP Mailbox Verification
Connects to the recipient's mail server to verify the mailbox actually exists. 97%+ accuracy.
Catch-All Detection
Detects wildcard domains that accept emails to any address, helping you identify risky contacts.
Deliverability Scoring
Every email gets a 0.0-1.0 confidence score and a quality grade: excellent, good, fair, or poor.
Live API Playground
Test the API with real validation. Every request hits our live infrastructure.
-H "Authorization: Bearer vk_live_..." \
-d '{"email":"[email protected]"}'
Enter an email and validate to see results
$ ./validate --email [email protected]
How the free email verifier works
Three steps to verify any email address. Results in under 500 milliseconds.
Enter an email address
Type or paste any email address into the verifier above. No signup or API key needed to try it.
We run multi-layer checks
Our system checks syntax, DNS records, mail server configuration, and connects via SMTP to verify the mailbox exists.
Get a detailed verification report
Receive a deliverability score, quality grade, and detailed breakdown of every check performed on the email.
Free to start, affordable to scale
Start verifying emails for free. Upgrade when you need more volume or SMTP verification via API.
Free
- • 1,000 verifications/month
- • single API key
- • basic email validation
- • API access
Starter
- • 5,000 verifications/month
- • single API key
- • real SMTP verification
- • validation history
Growth
- • 15,000 verifications/month
- • single API key
- • real SMTP verification
- • validation history
- • bulk validation
Pro
- • 50,000 verifications/month
- • unlimited API keys
- • duplicate removal
- • webhooks & callbacks
Unlimited
- • unlimited verifications
- • all pro features
- • dedicated support
- • fair usage up to 5M/month
Frequently asked questions
Is the email verifier really free?
Yes. You get 1,000 email verifications per month on the free plan, forever. No credit card required. The playground above works without any signup.
What's the difference between basic validation and SMTP verification?
Basic validation checks email format and DNS records (~85% accuracy). SMTP verification actually connects to the mail server to confirm the mailbox exists (~97% accuracy). Free plans include basic validation; paid plans add SMTP verification.
How accurate is the free email verifier?
The playground demo uses full SMTP verification with 97%+ accuracy. Free API accounts use basic validation at ~85% accuracy. Upgrade to Starter ($9/mo) for SMTP verification via API.
Can I verify emails in bulk for free?
Bulk verification is available on Growth plans and above ($19/mo). Free and Starter plans support single email verification via API. You can verify up to 1,000 emails per month on the free plan.
Do I need to sign up to verify an email?
No. You can use the playground above to verify individual emails without any account. For API access and higher volumes, create a free account to get your API key.
Start verifying emails for free
Get 1,000 free email verifications per month. No credit card required.
Create free account