Life & fun · alternatives · 2026

Auto-OTP is a tool for automatically sending and receiving one-time passwords with end-to-end encryption. It streamlines the process of managing OTPs by handling them without manual intervention. The service is… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Auto-OTP: automatically send and receive OTPs, end-to-end encrypted launched in 2022; newer entries below may have overtaken it.

1. 1
   Ots – share a secret via one-time URL▲77

   🔐 Share end-to-end encrypted secrets with others via a one-time URL - sniptt-official/ots

   2021 · github.com · its alternatives →

2. 2
   Ots – share a secret via one-time URL (a simple Go CLI)▲19

   🔐 Share end-to-end encrypted secrets with others via a one-time URL - sniptt-official/ots

   2021 · github.com · its alternatives →

3. 3
   Simple OTP▲104

   Simple passwordless authentication for your website

   2023 · its alternatives →

4. 4
   1Password Secrets Automation▲163

   Secure, orchestrate, and manage infrastructure secrets

   2021 · 1password.com · its alternatives →

5. 5
   Auto-generate an OpenAPI spec by listening to localhost▲178

   Hey HN! We've developed OpenAPI AutoSpec, a tool for automatically generating OpenAPI specifications from localhost network traffic. It’s designed to simplify the creation of API documentation by just using your website or service, especially useful when you're pressed for time. Documenting endpoints one by one sucks. This project originated from us needing it at our past jobs when building 3rd-party integrations. It acts as a local server proxy that listens to your application’s HTTP traffic and automatically translates this into OpenAPI 3.0 specs, documenting endpoints, requests, and…

   2024 · github.com · its alternatives →

6. 6
   auth.▲66

   2FA , MFA, OTP, Secure Code for Apple devices

   2021 · auth.startway.io · its alternatives →

7. 7
   Simple OTP 2.0▲131

   Passwordless, source-code-included auth for your website

   2024 · its alternatives →

8. 8
   OTP.io▲26

   Verify users over SMS, WhatsApp and Email, Globally

   2024 · otp.io · its alternatives →

9. 9
   Passage by 1Password▲236

   Frictionless security: auth & user management with passkeys

   2023 · 1password.com · its alternatives →

10. 10
    OTI▲9

    Encrypted secret sharing

    2025 · oti.karacabay.com · its alternatives →

11. 11
    GenerateOTP▲90

    A simple API to generate and validate OTP codes

    2019 · its alternatives →

12. 12
    OTPfill▲68

    Autofill OTP codes from your email on Mac

    25d ago · otpfill.com · its alternatives →

13. 13OS
    Open-Source Anonymous Encrypted TLS+OTR Messaging Written in Go▲25

    2015 · hacktunnel.com · its alternatives →

14. 14
    OTP Gateway▲4

    Reliable OTP Forwarding

    May 2026 · otp-gateway.com · its alternatives →

15. 15
    OnDrop▲95

    An end to end encrypted way to share files

    2022 · its alternatives →

16. 16
    Encryptochat▲68

    True end-to-end encrypted messaging.

    2020 · play.google.com · its alternatives →

17. 17
    Auth10X▲8

    Privacy-first OTP & password manager for iOS

    2025 · auth10x.assetsart.com · its alternatives →

18. 18
    OTP.com▲36

    OTP service for product builders. 4 channels - Single API

    Sep 2026 · otp.com · its alternatives →

19. 19
    GlobalOTP▲5

    No more one-time password hassle!

    2020 · globalotp.com · its alternatives →

20. 20SS
    SharedOTP – Shared two-factor authentication mechanism▲29

    2021 · sharedotp.com · its alternatives →

21. 21
    DataSafe – Encrypted messages via hotkey▲86

    A tiny app to quickly send encrypted messages with a hotkey

    2025 · its alternatives →

22. 22
    SafeKey – Password Manager▲82

    Anti-sign up, end to end encrypted password manager

    2024 · its alternatives →

23. 23CS
    Crypt – Secure Configuration Storage in Etcd or Consul▲69

    Crypt : Store and retrieve encrypted configuration parameters from etcd or consul

    2014 · xordataexchange.github.io · its alternatives →

24. 24EO
    Encrypted One Time Secret Sharing▲13

    2019 · share.labs.tozny.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 →