Dev tools · alternatives · 2026

24 alternatives to Email Validator API

It tells you if a Email is valid or not

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

1. 1
   Free Email Verifier▲202

   The first free and accurate email verification service

   2020 · gmass.co · its alternatives →

2. 2
   Email Verify API▲92

   Simple email validation API for a $39 lifetime license

   2021 · cloudlyn.com · its alternatives →

3. 3
   Email Validator API▲8

   This is an easy way to check email addresses

   2020 · its alternatives →

4. 4
   Email Validator!▲193

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

   2015 · garridodiaz.com · its alternatives →

5. 5
   Bulk Email Verifier & Checker▲115

   The top tool for checking mail address authenticity

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

6. 6
   Email Verification API▲4

   Real-time and convenient email validation tool

   2021 · emailverification.whoisxmlapi.com · its alternatives →

7. 7
   Mailerio▲30

   Keep your lists clean with email validation tool

   2025 · mailerio.com · its alternatives →

8. 8
   Legitmailbox▲75

   Email Verification API with monthly reports

   2021 · its alternatives →

9. 9
   SmartEmailCheck▲9

   Smarter Email Validation—Built for Modern Apps.

   Nov 2025 · smartemailcheck.com · its alternatives →

10. 10
    Checker▲124

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

    2025 · its alternatives →

11. 11
    Proofy▲181

    Quickly validate and verify your email lists.

    2016 · proofy.io · its alternatives →

12. 12
    Email Validator▲2

    Real-time email validation

    2019 · byteplant.com · its alternatives →

13. 13
    VerifyRight▲5

    Catch fake emails before they signup

    2025 · verifyright.io · its alternatives →

14. 14
    Email Checker - Easy Email Verification▲8

    Email Checker that reduces bounces instantly

    2025 · easyemailverification.com · its alternatives →

15. 15
    MailCheck▲49

    Stop Free Trial Abuse with Advanced Email Verification

    2025 · mail-check.tech · its alternatives →

16. 16
    Validate Email – 100% Free & Private▲28

    Instant Email Verification – Real, Reachable & Secure

    2025 · validate.email · its alternatives →

17. 17
    Rapid Email Validator 2025▲13

    Privacy-first free email verifier | no storage | open source

    2025 · rapid-email-verifier.fly.dev · its alternatives →

18. 18
    Email Verifier API▲5

    Verify Emails. Eliminate Hard Bounces. Boost Deliverability

    2025 · rapidapi.com · its alternatives →

19. 19
    Official Email Validator▲1

    Validate emails with real-time, deep SMTP checks.

    2025 · rapidapi.com · its alternatives →

20. 20CW
    Check whether an email address exists▲12

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

21. 21
    Emails_Validator▲6

    Accurate, affordable and secure emails verification service

    Jan 2026 · emailsvalidator.in · its alternatives →

22. 22
    mails.so▲9

    mails.so — Unbeatably simple email validation

    2024 · mails.so · its alternatives →

23. 23
    Real-time email validation JS Widget▲30

    Verify an email address typed in your form in real-time

    2020 · app.thechecker.co · its alternatives →

24. 24
    MailValidator▲6

    Emails you can trust ,Keep your email lists error-free.

    2025 · vercel.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 →