Dev tools · alternatives · 2026

24 alternatives to Email Validator API

This is an easy way to check email addresses

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Email Validator API launched in 2020; newer entries below may have overtaken it.

1. 1
   Email Validator API ▲7

   It tells you if a Email is valid or not

   2025 · thirsty-melisse-hardcode-c2fce731.koyeb.app · its alternatives →

2. 2
   Free Email Verifier▲202

   The first free and accurate email verification service

   2020 · gmass.co · its alternatives →

3. 3
   Email Validator!▲193

   Free JSON API that gives you a simple way to validate emails

   2015 · garridodiaz.com · its alternatives →

4. 4
   Email Verify API▲92

   Simple email validation API for a $39 lifetime license

   2021 · cloudlyn.com · its alternatives →

5. 5
   mails.so▲9

   mails.so — Unbeatably simple email validation

   2024 · mails.so · its alternatives →

6. 6
   Bulk Email Verifier & Checker▲115

   The top tool for checking mail address authenticity

   2023 · email-verifier.convertinsight.com · its alternatives →

7. 7CW
   Check whether an email address exists▲12

   2018 · email.universlabs.co.uk · its alternatives →

8. 8
   Email Verification API▲4

   Real-time and convenient email validation tool

   2021 · emailverification.whoisxmlapi.com · its alternatives →

9. 9
   MailCheck▲49

   Stop Free Trial Abuse with Advanced Email Verification

   2025 · mail-check.tech · its alternatives →

10. 10
    Email List Verify▲330

    Remove hard bounces and email traps from your email lists

    2016 · emaillistverify.com · its alternatives →

11. 11
    Free email checker▲2

    Find out whether an email address is valid or not!

    2024 · its alternatives →

12. 12
    SmartEmailCheck▲9

    Smarter Email Validation—Built for Modern Apps.

    Nov 2025 · smartemailcheck.com · its alternatives →

13. 13
    Email Bounce Checker from BlockSurvey▲98

    Privacy-focused email bounce checker. No ads, no trackers.

    2022 · blocksurvey.io · its alternatives →

14. 14
    Legitmailbox▲75

    Email Verification API with monthly reports

    2021 · its alternatives →

15. 15
    Verify Email Addresses▲4

    Email Verification Services

    2021 · verifyemailaddresses.com · its alternatives →

16. 16
    Checker▲124

    Detect fake signups in under 200ms with an easy-to-use API

    2025 · its alternatives →

17. 17
    Mailerio▲30

    Keep your lists clean with email validation tool

    2025 · mailerio.com · its alternatives →

18. 18
    Email Checker - Easy Email Verification▲8

    Email Checker that reduces bounces instantly

    2025 · easyemailverification.com · its alternatives →

19. 19
    Email Validator by LeadStal▲59

    Single & multiple email validation tool online

    2022 · leadstal.com · its alternatives →

20. 20
    Validemail.co▲5

    Simple & fast email validation for everyone

    2025 · validemail.co · its alternatives →

21. 21
    Proofy▲181

    Quickly validate and verify your email lists.

    2016 · proofy.io · its alternatives →

22. 22
    Email Validation API – Validateemail.io▲1

    Verify email addresses in real time with a fast REST API. Check syntax, domain and MX records, and catch disposable, role-based and mistyped emails.

    5h ago · validateemail.io · its alternatives →

23. 23
    EmailToCheck▲5

    Free email verification tool

    2024 · emailtocheck.netlify.app · its alternatives →

24. 24
    Spam Checker by Mailmeteor▲88

    Detect and remove spam words in your emails

    2022 · mailmeteor.com · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →