Best ZeroBounce alternatives for email verification
Email verification tools to clean prospect lists before cold outreach, as alternatives to ZeroBounce.
How this list works: Listed alphabetically. Most of these sell credits rather than monthly plans, so compare cost per verification at your volume. Pricing verified against vendor pages (latest check ). No placement here is paid. Methodology.
| Tool | What it is | Price (vendor-published) | Free plan | Channels |
|---|---|---|---|---|
| Allegrow | Email verification and deliverability platform for B2B data and GTM teams, including catch-all and secure-gateway verification. | Free B2B email verification for up to 1,000 addresses; Starter $99/mo (add-on credits $8 per 1,000 contacts); Scale Plus Unlimited $1,340/mo billed annually; 14-day free trial | Yes | |
| Bounceless | Email verification service with monthly credit plans and integrations. | Free tier with a work email; billed monthly at the default volumes: Starter $19/mo (6,500 credits), Business $99/mo (100,000), Scale $349/mo (500,000); custom volume via sales; credits never expire; unconfirmed results not billed | Yes | |
| Bouncer | Email list verification service with an API and a deliverability testing kit. | Pay-as-you-go email verification from $8 for 1,000 credits ($400 for 100,000; $2,000 for 1M); credits never expire; Deliverability Kit from $25/mo | — | |
| Clearout | Email verification and finder. | Free 100 credits; Starter $19.5/mo monthly ($16 annual) for 3,000 credits; Pro 10K credits $40/mo ($32 annual); unused credits roll over | Yes | — |
| DeBounce | Bulk email verification and list cleaning with an API, catching bounces, disposable addresses and spam traps. | Pay-as-you-go credits that never expire, from $0.00045 per check at the highest volumes (e.g. 500K credits $450, $0.0009/credit); monthly plans also offered; free to start, no credit card | — | |
| Emailable | Email verification for bulk lists and via API to cut bounces before outreach. | Credits pay-as-you-go or on a monthly plan; e.g. 5,000 credits $38 pay-as-you-go or $32.30/mo monthly ($0.0076/credit), 21,000 credits $126 ($0.006/credit); pay-as-you-go credits never expire; free to start; custom pricing above 1,000,000 credits | — | |
| EmailListVerify | Bulk and API email verification to remove invalid, disposable and risky addresses before sending. | Pay as you go from a 1,000-credit minimum; e.g. 10,000 credits $27.99 one-off ($0.0028 per address) or $25/mo on a monthly plan; volume pricing above 1,000,000 emails | — | |
| Kickbox | Email verification platform (GDPR-compliant, SOC 2) for bulk lists and real-time API checks. | Pay as you go: 100 verifications free, then 500 for $5, 1,000 $10, 5,000 $40, 10,000 $70, 100,000 $500, 1,000,000 $2,999; unknown results are refunded; volume discounts above 1M | — | |
| MailerCheck | Email list verification and deliverability testing from the MailerLite team. | Pay as you go: 1,000 credits for $10 ($0.01 per credit) | No | |
| mailfloss | Email list verification that connects to email platforms and cleans lists automatically every day. | Free 500 verifications every month; subscriptions as displayed: Lite $29/mo (10,000 credits), Business $59/mo (25,000), Pro $209/mo (125,000), with higher credit tiers; annual billing saves 17%; prepaid credits for one-time cleaning; 7-day free trial on subscriptions (card required) | Yes | |
| MillionVerifier | Bulk email list verification. | One-time credit packages from $39; e.g. 50,000 verifications $89, 1 million $449; credits never expire | — | — |
| Proofy | Email verification service with pay-as-you-go and subscription credits. | Pay-as-you-go or subscription credit packs with tiered per-credit prices (1,000 credits $5); new users can buy 5,000 credits for $5; credits don't expire; duplicates and unknowns not charged | — | — |
| Reoon Email Verifier | Low-cost bulk and real-time email verification with one-time or daily-renewing credits. | Free tier (20 verifications/day); instant credits that never expire, e.g. 10K $11.90, 100K $116.40, 1M $972; daily credits from $9/mo (500 credits/day) | Yes | |
| Truelist | Email validation that resolves catch-all addresses, with pay-as-you-go and unlimited plans. | Free plan, no card; pay-as-you-go credits that never expire: $1.40 per 1,000 (up to 10K) down to $0.70 per 1,000 (up to 1M); Unlimited validation $999/mo on 3 months, $899 on 6 or $799 on 12 months; deliverability monitoring $49/mo; Enterprise from $2,000/mo | Yes | |
| Verifalia | Email verification service with bulk list cleaning, a real-time API and three validation levels. | Free plan (25 verifications/day); daily-credit plans Starter $9/mo, Professional $49, Enterprise $199, Ultimate $499 (credits reset daily); one-off credit packs that never expire, e.g. 1,000 for $7.90, 10,000 $49.90, 100,000 $389, 1,000,000 $1,490 | Yes |
FAQ
Which email verifier is cheapest at volume?
On published rates in our data: MillionVerifier sells 1 million verifications for $449 one-time, DeBounce lists rates from $0.00045 per check at the highest volumes, Bouncer is $2,000 for 1M and Kickbox $2,999 for 1M.
Do verification credits expire?
MillionVerifier, Bouncer, DeBounce and Verifalia (one-off packs) say their credits never expire, as do Emailable's pay-as-you-go credits; Clearout says unused credits roll over.
Compare tools from this list
- DeBounce vs MillionVerifier
- Emailable vs Bouncer
- EmailListVerify vs MillionVerifier
- Reoon Email Verifier vs MillionVerifier
- Reoon Email Verifier vs DeBounce
- Verifalia vs MillionVerifier
- MailerCheck vs Kickbox
- Truelist vs MillionVerifier
- Truelist vs Bouncer
- Proofy vs MillionVerifier
- mailfloss vs MillionVerifier
- Bounceless vs MillionVerifier
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