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Alternatives

Products that do what AuthFill does

Verify your email with only one click.

  1. 1SW

    Hey there, there are lot of disposable email services, but as I was thinking I realized 95% of the time, I don't care about my inbox. I just want to "verify my email". That's why I created a startup with no website, it's called [email protected], it's a credible domain (you don't say) and it will click on any "verify" links you send it to it. You can use aliases to get around of duplicate emails in the target system, so like [email protected] [email protected] [email protected] so choose an alias and start using the service! I will provide a…

    2019

  2. 2

    Generate real disposable identities to protect your inbox

    Feb 2026 · chromewebstore.google.com

  3. 3NS
  4. 4

    Hide your real email address to help protect your identity.

    2021

  5. 5

    The first free and accurate email verification service

    2020

  6. 6

    Protect your online privacy with unique email addresses

    2021

  7. 7
    BounceBan123

    Unlimited free email verify, works great for accept-all

    2022

  8. 8

    Take back control of your inbox

    Nov 2025

  9. 9

    The top tool for checking mail address authenticity

    2023

  10. 10

    Add two-factor auth to any site in minutes

    2016

  11. 11

    Passwordless, source-code-included auth for your website

    2024

  12. 12
    NoPass.me129

    Open-source identity verification

    2021

  13. 13
    nBox96

    Signup anywhere without giving your email address

    2017

  14. 14

    Free email verification for Salesforce

    2020

  15. 15

    An add-on for email verification directly on Google Sheets

    2018

  16. 16

    Hi HN :) really excited to share this with you. The one thing AI reliably does is generate noise. Half the tools I see launch are just machines for producing more noise across more channels. And people are starting to see this in the form of emails in their inboxes as spam filters are struggling. There used to be a useful signal in email: the effort a sender put into customizing a message was a rough proxy for how relevant it actually was. AI killed that. Now it's customized slop with the appearance of effort with none of the cost. It is painful that the open internet / open channels…

    Jul 2026 · captchainbox.com

  17. 17

    Verify your email list before you hit send

    Aug 2026 · mailercloud.com

  18. 18

    Autofill that finishes the form, not just your email

    May 2026 · fillsnap.com

  19. 19

    Grow your email list with real, verified subscribers.

    Jan 2026 · signupz.co

  20. 20IP

    Hey HN! I made a service to share passwords easy and secure but never promoted it. It's called instapass.io I noticed that people besides my friends and clients actually started to use, so maybe it will be helpful for you too! You share one-time self-destruct message using one time links and I won't even be able to see what you wrote. How does it work? When you generate a message the client-side makes a random password and use that to encrypt the message. The password is appended as an anchor tag which all modern browsers never send to the server. This way, I don't even know what you shared.…

    2019

  21. 21

    Verify emails instantly in bulk syntax, MX, disposable more

    2025

  22. 22NE
  23. 23
    WebFill24

    Automate form filling, emails, and MCQs with AI precision.

    2024

  24. 24

    Email verification API that catches fake signups

    Mar 2026 · sniffmail.io

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