Side by side
Clearout Email Verification vs MailboxValidator
Both stand on email verification apis. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan APIExtensionWeb
Clearout provides several ways to check email addresses, from a single entry to bulk lists and API workflows. Its free plan and 100 signup credits offer a starting point, while paid pricing begins at $16/mo (annual).
Visit Clearout Email Verification Free plan APIWeb
MailboxValidator offers both API and bulk-list checking, with a wide set of validation checks and integrations. Before choosing it, consider its Yahoo and non-ASCII limitations, and review the stated retention policy.
Visit MailboxValidatorThe facts
| Clearout Email Verification | MailboxValidator | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | API, Extension, Web | API, Web |
| Lowest paid plan | Free or on request | See the plans |
| Plans published | 4 | 10 |
| Maker | Not published | Not published |
| Website | clearout.io | mailboxvalidator.com |
| On email verification apis | #3 of 31 | #17 of 31 |
Clearout Email Verification: what it does well
- Supports individual, bulk, and API verification
- Checks more than 20 email validation signals
- New users receive 100 free credits
- Unknown results and same-list duplicates are not charged
What to know first
- One credit is used for each valid, invalid, or catch-all result
- Uploaded CSV and XLSX lists are limited to 1 million emails per file
MailboxValidator: what it does well
- Bulk validation accepts text or CSV lists.
- Single-address API results are available in JSON or XML.
- Checks include disposable addresses, DMARC, and strict SPF.
- Free API plan lists 300 queries per month.
What to know first
- Yahoo email validations are unsupported.
- Non-ASCII addresses are marked invalid.
- The FAQ says refunds are not offered.
- Personal data is retained indefinitely, subject to policy limits.
Alternatives to Clearout Email Verification Alternatives to MailboxValidator The whole list

