Alternatives

Products that do what StopReg does

Block disposable emails and fake registrations instantly

1. 1
   Trueguard▲368

   Stop fake user signups

   2025

2. 2
   DisposableCheck – Disposable Email Check▲12

   Free Disposable Email Detector & API

   Jan 2026

3. 3LO
   List of disposable email domains to prevent fake registrations▲28

   2021 · disposable-emails.github.io

4. 4
   Generect Email Finder▲480

   Verify and validate emails at scale

   2024

5. 5
   Danger▲119

   Catch fake details, block throwaway emails, spot problem IPs

   2024

6. 6
   Proofy▲181

   Quickly validate and verify your email lists.

   2016

7. 7
   You've Got Spam▲309

   A new tool that lets you spam back the spammer

   2020

8. 8
   Checker▲124

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

   2025

9. 9
   Proofy 2.0▲199

   A bulk email verification service

   2019

10. 10SW
    Spamnesty: Waste spammers' time▲405

    2016 · stavros.io

11. 11
    MailCheck▲49

    Stop Free Trial Abuse with Advanced Email Verification

    2025

12. 12
    IsItDisposable▲11

    Stop throwaway emails before they hit your database

    26d ago · isitdisposable.com

13. 13FA
    Free API to block disposable emails▲19

    2017 · validator.pizza

14. 14
    CleanSignups▲4

    Block fake signups with real-time email verification

    Jul 2026 · cleansignups.com

15. 15
    Validator.pizza▲99

    Free API to block 🗑 disposable emails

    2017

16. 16
    altmails 2.0▲96

    Stop giving out your email address online.

    2019

17. 17
    BounceBan▲123

    Unlimited free email verify, works great for accept-all

    2022

18. 18
    MailGate▲1

    Block fake & disposable emails before they hit your DB

    8d ago · mailgate.netlify.app

19. 19
    Bouncer Shield▲85

    Real-time form protection against bad emails

    2024

20. 20
    RoboKiller▲85

    The app that stops spam calls forever

    2019

21. 21
    Signupscore▲3

    Stop fake signups without blocking real customers

    Aug 2026 · signupscore.com

22. 22
    BotBye!▲7

    Stop bots and phishing attacks targeting your business.

    Apr 2026 · botbye.com

23. 23IB
    I built an API to detect and verify disposable or temp email addresses▲5

    Hi HN, I'm excited to share a project I've been working on: UnwrapEmail(https://unwrap.email), an API designed to detect and verify disposable or temporary email addresses. Features: - Detect disposable email addresses - Extract labels from email addresses (e.g., Gmail) - Normalize addresses by removing labels or special characters (e.g., Gmail) - Validate MX records of domains - Check whether it’s safe to send to a given email to reduce bounces and maintain sender reputation Why I Built This: As the owner of an AI wrapper app, I've seen decent traffic thanks to SEO efforts + ads,…

    2024 · unwrap.email

24. 24ID
    IsTempMail – Detect and block disposable email addresses▲35

    2017 · istempmail.com

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