Email verification
ZeroBounce alternatives
LookValid does not offer a mailbox test. Its email domain check reads the domain behind an address and does not say whether one mailbox exists, so it is not ranked here. For that job, use ZeroBounce or another provider on this list. ZeroBounce sells email verification. ZeroBounce sells email verification paid per address with credits, either as pay-as-you-go packs with volume discounts or through a monthly subscription that bundles credits with deliverability tools. Unknown results and duplicate removals are not charged.
Why people look beyond ZeroBounce
These are limits ZeroBounce states on its own pages.
- The finder tool uses 20 credits per successful query. Source
- The free tier excludes activity data, warmup and DMARC monitoring. Source
- Purchases above one million credits are priced individually as enterprise deals. Source
Pricing model: Credits and subscriptions.
Shortlist in email verification
Ranking rule: Lowest per-1,000 price in US dollars first, at the best volume tier the page prints. Where a page prints only a price per request, the per-1,000 figure is our arithmetic and is shown as "about". Providers with no dollar per-1,000 figure we can compare come after, and ties go by name.
| Rank | Provider | Free result | Paid result | How it bills |
|---|---|---|---|---|
| 1 | MillionVerifier | New accounts receive 100 free credits and need no card. Source | 50,000 credits: $89, one-time purchase, slider package Source | Prepaid credits |
| 2 | DeBounce | New accounts get 100 free credits, no card needed. Source | Pay-as-you-go entry rate: $0.00045, lowest published cost per single check, one credit each Source | Prepaid credits |
| 3 | Email List Validation | New accounts get 100 free credits with no card. Source | 2,500 emails pay-as-you-go: $19, one-time pack of 2,500 verifications Source | Credits and subscriptions |
See the full ranked list: Best email verification tools, scored.
1. MillionVerifier
- Best for: Teams that prefer to buy credits in packs rather than a monthly plan.
- Why it is on the list: Sells email verification, and its per-1,000 figure is about $0.449, our arithmetic from the prices on its page.
- Watch for: Risky results (unknown and catch-all) are not charged. Source
- LookValid vs MillionVerifier
2. DeBounce
- Best for: Teams that prefer to buy credits in packs rather than a monthly plan.
- Why it is on the list: Sells email verification, and its per-1,000 figure is about $0.45, our arithmetic from the prices on its page.
- Watch for: Add-ons cost more credits: catch-all checks use 10 credits each and data enrichment uses 20 per successful hit. Source
- LookValid vs DeBounce
3. Email List Validation
- Best for: Teams that choose between prepaid packs and a monthly plan.
- Why it is on the list: Sells email verification, and its per-1,000 figure is about $0.95, our arithmetic from the prices on its page.
- Watch for: Minimum purchase is 2,500 credits. Source
- LookValid vs Email List Validation
LookValid in this area
LookValid does not offer a mailbox test. Its email domain check reads the domain behind an address and does not say whether one mailbox exists, so it is not ranked here.
Sources for ZeroBounce
- Pricing page on zerobounce.net https://www.zerobounce.net/email-validation-pricing/, read 2026-10-18
- Help page on zerobounce.net https://www.zerobounce.net/docs/frequently-asked-questions/billing-and-payments/how-is-pricing-determined-for-email-verification, read 2026-10-18
- Home page on zerobounce.net https://www.zerobounce.net, read 2026-10-18
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