Verify email addresses free. No signup, no credit card.
Check 10 emails a day instantly, or 100 a day with just your email. Paste a list or drop a CSV; we sort every address into deliverable, risky, or invalid.
CSV files are parsed in your browser and never uploaded. Obvious junk is filtered locally so it doesn't touch your daily quota.
How to verify emails in three steps
- Step 1
Paste emails or drop CSV
Paste addresses into the box or drop a CSV or TXT file. The file is parsed entirely in your browser and is never uploaded anywhere.
- Step 2
Free local safety scan
Before any quota is used, a local scan flags broken syntax, strips duplicates, and catches known disposable domains instantly, right on your machine.
- Step 3
Get verdicts and download
Remaining addresses run through MX and SMTP-level mailbox checks. Each comes back Deliverable, Risky, Invalid, or Unknown, ready to download as CSV or JSON.
What is email verification?
Email verification is the process of checking whether an address can actually receive mail before you send to it. It confirms the address is spelled correctly, the domain has mail servers, and the specific mailbox exists. Verifying a list before a campaign removes dead addresses, cuts bounces, and protects your sender reputation.
Addresses go bad fast. People change jobs, abandon inboxes, and mistype their own emails on signup forms. The common industry rule of thumb is that B2B lists decay at roughly 20 to 30 percent per year. A list you built eighteen months ago can easily contain a quarter of dead addresses, and every one of them turns into a hard bounce the moment you hit send.
Verification is not the same as checking syntax alone. A regex can tell you that [email protected] looks like an email. Only a live check against the domain's mail servers can tell you the mailbox behind it exists. That is the difference between guessing and knowing, and it is why serious senders verify before every large campaign.
Why does bounce rate matter?
Bounce rate matters because mailbox providers treat it as a direct signal of list quality. Keep hard bounces under 2 percent. Above that, Gmail, Outlook, and other providers start routing your mail to spam, and email services may suspend your account. High bounces damage sender reputation, which takes weeks to rebuild.
Sender reputation works like a credit score attached to your domain and sending IP. Every hard bounce, spam complaint, and spam-trap hit lowers it. Once it drops, even your emails to valid, engaged subscribers land in the junk folder. Recovering takes weeks of careful, low-volume sending to your most engaged contacts, which is far more expensive than preventing the damage in the first place.
There is also a hard platform limit. Most email service providers monitor bounce rates per campaign, and repeated sends above roughly 2 percent trigger warnings, sending pauses, or account review. Verifying a list before you load it into your ESP is the cheapest insurance you can buy: it keeps your campaigns sending and your deliverability intact.
How our verification checks work
Every check starts in your browser. When you paste addresses or drop a CSV, a local safety scan runs before anything touches the network. It flags broken syntax, removes duplicates, and catches known disposable domains instantly, and none of that uses your daily quota. Your file itself is parsed locally and never uploaded.
Addresses that pass the local scan go to our verification engine one at a time over HTTPS. We look up the domain's MX records to confirm it can receive mail, then run an SMTP-level conversation with the mail server to check that the specific mailbox exists, all without sending an actual email. Along the way we detect catch-all domains, role accounts like info@ and sales@, and likely typos, with suggestions such as gmail.com when someone typed gmial.com.
Each address comes back with one of four verdicts, color coded so you can scan a list at a glance. Deliverable addresses are safe to send. Risky results deserve a judgment call. Invalid addresses should be removed. Unknown means the server would not give a definitive answer, which happens with some strict mail hosts.
- Deliverable (green): the mailbox exists and accepts mail. Safe to send.
- Risky (amber): catch-all domain, role account, or disposable address. Sendable, but expect lower engagement.
- Invalid (red): the mailbox or domain does not exist. Remove before sending.
- Unknown (gray): the mail server blocked or timed out on the check. Retry later or treat with caution.
Everything included, nothing to pay
Free daily checks
Verify 10 emails a day with no signup at all. Enter just an email address, no password, and the limit rises to 100 a day.
No credit card ever
The free tier is not a trial. There is nothing to cancel, no card on file, and no surprise charge when a limit resets.
CSV parsed in your browser
Drop a CSV or TXT file and it is read locally by your browser. The file never touches our servers, so your list stays private.
Disposable and role detection
Temporary inboxes and role accounts like info@ and billing@ are flagged automatically, so you can cut the addresses least likely to engage.
Typo suggestions
Misspelled domains are caught with a suggested fix, like gmail.com for gmial.com, so you recover real subscribers instead of discarding them.
Instant CSV and JSON export
Download full results, verdicts included, as CSV for spreadsheets or JSON for scripts. No export paywall and no waiting for an emailed file.
How we compare to paid email verifiers
Paid verifiers like NeverBounce, MillionVerifier, ZeroBounce, and Hunter are solid tools, especially for very large lists, API access, and marketing integrations. If you clean millions of addresses a month, they are worth paying for. For everyday checks and smaller lists, the comparison below shows where a genuinely free tool fits.
| Tool | Free checks | Signup required | Pricing model | Free CSV cleaning |
|---|---|---|---|---|
| Free Email Verifier | 10/day free, 100/day with email | No (10/day) / email only (100/day) | Free | Yes, in your browser |
| NeverBounce | Small free credit bundle on signup | Yes | Paid per-credit, built for large lists and integrations | No, bulk cleaning is paid |
| MillionVerifier | Small one-time free credit bundle on signup | Yes | Paid per-credit, known for budget-friendly bulk pricing | No, beyond the initial free credits |
| ZeroBounce | Small monthly free allowance on signup | Yes | Paid per-credit with a broad feature set: API, scoring, integrations | Limited to the monthly free allowance |
| Hunter | Small monthly allowance on the free plan | Yes | Subscription plans that bundle email finding and outreach tools | Limited, within plan quotas |
Frequently asked questions
Is Free Email Verifier really free?
Yes. You get 10 verifications per day with no signup at all, and 100 per day after entering just an email address. There is no password, no credit card, and no trial that expires. The daily allowance resets every day, so casual and small-batch users never pay anything.
How accurate is email verification?
No verifier is perfect, but MX and SMTP-level checks catch the large majority of bad addresses before you send. Accuracy is highest for standard mailboxes and lower for catch-all domains, which accept everything, and for strict servers that block checks. Treat Deliverable as high confidence, and handle Risky and Unknown results with judgment.
Can I verify emails without signing up?
Yes. Your first 10 verifications each day require no account and no email address. Open the page, paste addresses, and check them. If you need more, entering just an email raises the limit to 100 per day. You never create a password or add payment details at any point.
How many emails can I verify per day?
You can verify 10 emails per day with no signup, or 100 per day after entering an email address. Addresses caught by the local safety scan, such as bad syntax, duplicates, and known disposable domains, do not count against the limit. Both allowances reset daily, and neither requires payment details.
Is my email list uploaded to your servers?
No. Your CSV or TXT file is parsed entirely in your browser and never uploaded. Only the individual addresses you choose to verify are sent to our servers, one at a time, over encrypted HTTPS. The file itself, along with any other columns it contains, stays on your machine.
Do you store the emails I check?
We cache verification results briefly so repeat checks of the same address return instantly, and we keep daily counters to enforce the free limits. Your lists are never stored, shared, or sold. The CSV file you drop is parsed in your browser and never reaches our servers at all.
What does a risky result mean?
Risky means the address is real but carries a caveat. It is usually a catch-all domain that accepts all mail, a role account like info@ or support@, or a disposable address from a temporary inbox service. You can send to risky addresses, but expect lower engagement and a higher chance of bounces.
What is a catch-all domain?
A catch-all domain is configured to accept mail for any address at that domain, whether or not the mailbox exists. The server says yes to everything, so SMTP checks cannot confirm a specific mailbox. Verifiers mark these addresses risky: many are fine, but some will bounce after acceptance or go unread.
Why do emails bounce?
Emails bounce when the receiving server rejects them. Hard bounces happen when the mailbox or domain does not exist, usually from typos, closed accounts, or old lists. Soft bounces are temporary: a full inbox, a server outage, or a message flagged as too large. Verification prevents most hard bounces before you send.
Should I email role addresses like info@ or sales@?
Usually not for marketing. Role addresses reach a shared inbox or alias rather than one person, so engagement is low and spam complaints are more likely because several people receive mail none of them signed up for. They are fine for one-to-one business outreach, but most bulk senders filter them out.
How do I verify an email list from Excel or CSV?
Export your sheet as CSV or TXT, then drop the file onto the verifier. The file is parsed in your browser, the local scan removes duplicates and obvious junk for free, and remaining addresses are checked against your daily quota. Download the results as CSV and merge them back into your spreadsheet.
What is the difference between a syntax check and an SMTP check?
A syntax check only confirms an address is formatted correctly, so [email protected] passes even if the mailbox never existed. An SMTP check goes further: it connects to the domain's mail server and asks whether that specific mailbox accepts mail. Syntax checks catch typos instantly; SMTP checks catch dead addresses.
Verify your first 10 emails now
No signup, no credit card, no file uploads. Paste a few addresses or drop a CSV and see clean results in seconds. If you need more room, an email address gets you 100 checks a day, free.
Start verifying free