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Ranked October 2026 · 10 tools compared

These are the 10 best email verification tools of 2026.

1Lookup is our pick for 2026: one credit checks an email address, the same account checks phone numbers and IP addresses, and the Starter plan works out to $4.95 per 1,000 checks.

Start a 7-day free trialTry the free email checker

No payment today.

This is what 225,377 email checks on 1Lookup found in the last 30 days.

About 1 in 26 addresses could not receive mail, and every bounce counts against the sender.

89.6%
Deliverable
Safe to send
3.8%
Undeliverable
Would bounce
3.8%
Risky
Worth a second look

Checks run on 1Lookup, 8 September to 7 October 2026. Aggregate counts only.

We ranked these tools on five things a buyer pays for.

  1. 1What one account checks: emails only, or phone numbers and IPs too
  2. 2The price per 1,000 checks at the smallest purchase
  3. 3How you can start for free
  4. 4What happens to credits you don't use
  5. 5What else the same credits buy

Rival prices and terms were read from each vendor's own pricing page in September and October 2026.

Here are the 10 tools, ranked.

Our pick

1Lookup logo1. 1Lookup

Best for teams that check emails, phone numbers and IPs

Checks
Emails, phone numbers and IP addresses: 44 data products on one key
Per 1,000 at the smallest buy
$4.95 on Starter ($99 for 20,000 credits), down to $2.00 on Enterprise
Free start
Free single checks with no account, and a 7-day free trial

Why it’s on the list: every email check returns deliverability, a fraud score and a risk level, and the same credits run phone validation, live HLR status and IP lookups.

Also included: unused monthly credits roll over for 3 months, and the same account comes with an MCP server for AI agents and Zapier, Make and n8n apps.

Start a 7-day free trial

2. ZeroBounce

Best for a deliverability suite on one credit system

Checks
Emails only
Per 1,000 at the smallest buy
$19.50 (2,000 for $39)
Free start
100 checks a month, business email required

Why it’s on the list: unknown results and duplicates are not charged, and the same credits cover inbox placement tests and blacklist monitoring.

Watch for: credits may expire without a ZeroBounce ONE subscription, and its Email Finder uses 20 credits per result.

1Lookup vs ZeroBounce: full comparison

3. NeverBounce

Best for CRM and email platform integrations

Checks
Emails only
Per 1,000 at the smallest buy
$8.00 (1,000 credits for $8)
Free start
10 credits at signup

Why it’s on the list: it connects to more than 80 apps, including HubSpot, Mailchimp and Zapier, with automatic CRM sync on the Growth plan.

Watch for: pay-as-you-go credits expire 12 months after purchase.

1Lookup vs NeverBounce: full comparison

4. Kickbox

Best for teams that need SOC 2 and US or EU infrastructure

Checks
Emails only
Per 1,000 at the smallest buy
$10.00 (500 checks for $5)
Free start
First 100 checks

Why it’s on the list: it is SOC 2 certified and GDPR compliant, and unknown results are refunded.

Watch for: credits expire 1 year after purchase, and 1,000,000 checks cost $2,999, against $1,999 on 1Lookup's Enterprise plan.

1Lookup vs Kickbox: full comparison

5. Emailable

Best for fast bulk list cleaning

Checks
Emails only
Per 1,000 at the smallest buy
$7.60 (5,000 for $38)
Free start
250 credits at signup

Why it’s on the list: credits never expire, and unknown results and duplicates are refunded.

Watch for: the smallest purchase is 5,000 credits, and each inbox report uses 100 credits.

1Lookup vs Emailable: full comparison

6. Bouncer

Best for EU hosting

Checks
Emails only
Per 1,000 at the smallest buy
$8.00 (1,000 for $8)
Free start
100 credits at signup, plus 5 checks a day

Why it’s on the list: it advertises EU hosting and GDPR compliance, and duplicates and unknown results are not charged.

Watch for: its Deliverability Kit is a separate subscription, $25 to $250 a month.

1Lookup vs Bouncer: full comparison

7. Clearout

Best for a deliverability guarantee

Checks
Emails only
Per 1,000 at the smallest buy
$8.00 (5,000 for $40)
Free start
100 credits at signup

Why it’s on the list: it offers a 97% deliverability guarantee backed by a 30-day refund policy, and credits never expire.

Watch for: phone verification is a separate product, and its email finder uses 4 credits per address.

1Lookup vs Clearout: full comparison

8. DeBounce

Best for low cost at very high volume

Checks
Emails only
Per 1,000 at the smallest buy
$3.00 (5,000 for $15)
Free start
100 credits at signup

Why it’s on the list: it falls to $0.75 per 1,000 at a million checks, and credits never expire.

Watch for: a catch-all check uses 10 credits, so the real cost per result can be 10 times the headline rate.

1Lookup vs DeBounce: full comparison

9. EmailListVerify

Best for a cheap first purchase

Checks
Emails only
Per 1,000 at the smallest buy
$5.00 (1,000 for $5)
Free start
100 checks at signup

Why it’s on the list: pay-as-you-go credits never expire, and the API is included.

Watch for: its pricing page shows no money-back or deliverability guarantee.

1Lookup vs EmailListVerify: full comparison

10. QuickEmailVerification

Best for a daily free allowance

Checks
Emails only
Per 1,000 at the smallest buy
$8.00 (500 for $4)
Free start
100 checks every day

Why it’s on the list: it gives 100 free checks a day, and one-time credits never expire.

Watch for: daily subscription credits reset each day, so unused ones are lost.

1Lookup vs QuickEmailVerification: full comparison

1Lookup is the only tool on this list that checks emails, phone numbers and IP addresses.

  • 1. 1Lookup
    Emails
    Phone numbers
    IP addresses
    Per 1,000 at the smallest buy
    $4.95
    Free start
    Free checks, no account
  • 2. ZeroBounce
    Emails
    Phone numbers
    IP addresses
    Per 1,000 at the smallest buy
    $19.50
    Free start
    100 a month
  • 3. NeverBounce
    Emails
    Phone numbers
    IP addresses
    Per 1,000 at the smallest buy
    $8.00
    Free start
    10 at signup
  • 4. Kickbox
    Emails
    Phone numbers
    IP addresses
    Per 1,000 at the smallest buy
    $10.00
    Free start
    100 at signup
  • 5. Emailable
    Emails
    Phone numbers
    IP addresses
    Per 1,000 at the smallest buy
    $7.60
    Free start
    250 at signup
  • 6. Bouncer
    Emails
    Phone numbers
    IP addresses
    Per 1,000 at the smallest buy
    $8.00
    Free start
    100 at signup
  • 7. Clearout
    Emails
    Phone numbers
    IP addresses
    Per 1,000 at the smallest buy
    $8.00
    Free start
    100 at signup
  • 8. DeBounce
    Emails
    Phone numbers
    IP addresses
    Per 1,000 at the smallest buy
    $3.00
    Free start
    100 at signup
  • 9. EmailListVerify
    Emails
    Phone numbers
    IP addresses
    Per 1,000 at the smallest buy
    $5.00
    Free start
    100 at signup
  • 10. QuickEmailVerification
    Emails
    Phone numbers
    IP addresses
    Per 1,000 at the smallest buy
    $8.00
    Free start
    100 a day

Rival prices from each vendor's own pricing page, September and October 2026. 1Lookup: Starter plan, 1 credit per email check.

These are the questions buyers ask most about email verification.

What is the best email verification tool in 2026?

1Lookup, because one account and one credit balance check emails, phone numbers and IP addresses, from $4.95 per 1,000 checks. If you only ever check emails, ZeroBounce adds deliverability tools on the same credits and NeverBounce connects to more than 80 apps.

How much does email verification cost?

Between $3 and $19.50 per 1,000 checks at the smallest purchase on this list, and every tool here charges less per check as you buy more. 1Lookup's Starter plan works out to $4.95 per 1,000, and a million checks cost $1,999 on Enterprise.

Is there a free email checker?

Yes. 1Lookup's email checker runs single checks free with no account and sends the address nothing. Most tools on this list give 10 to 250 free credits at signup instead.

What does each email verification result mean?

Deliverable means the mail server accepted the mailbox. Undeliverable means it does not exist and a send would bounce. Risky covers catch-all domains, which accept every address, and mailboxes that are full or disabled. 1Lookup also flags disposable and role addresses such as info@ and sales@.

Can one tool check emails and phone numbers?

1Lookup is the only tool on this list that checks both, plus IP addresses, on one credit balance.

Try 1Lookup free for 7 days before you decide.

The 7-day free trial includes credits for all 44 data products: $5 on Starter, $20 on Growth and above. No payment today.

Start your free trialSee 1Lookup pricing

We rank three more kinds of data tools the same way.

Looking for one head-to-head instead? See the full comparison directory or the alternatives guides.