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Work · alternatives · 2026

24 alternatives to Anonymous age verification with passkey-powered encryption

This project has been kicking around in my head since I first heard about the webauthn PRF extension in early 2024. I've slowly chipped away at it since, and finally got things to a shareable state over the summer thanks to a very fun parental leave. Headed back to work tomorrow, so I figure there's no time like the present. tldr: A client-held encryption key derived during passkey authentication encrypts all sensitive user data prior to persistence so that only the user is able to decrypt and reuse that data on their device. This allows short-lived, privacy-preserving age proofs to be…

Anonymous age verification with passkey-powered encryption is a privacy-focused identity platform that uses passkey authentication and user-held encryption keys to verify age without exposing personal information.… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

  1. 1NA

    We just shipped a new feature in NextDNS: Bypass Age Verification. More and more sites (especially adult ones) are now forcing users to upload IDs or selfies to continue. We think that’s a terrible idea: handing over government documents to random sites is a huge privacy risk. This new setting workarounds those verification flows via DNS tricks. It’s available today to all users, including free accounts. We’re curious how the HN community feels about this. Is it the right way to protect privacy online, or will it just provoke regulators to push harder? https://nextdns.io

    2025 · its alternatives →

  2. 2

    So I'm not an expert in this area, but here's an attempt at cost effective, anonymous, age verification flow that probably covers ~70% of use cases in the United States. The basic premise is to leverage your bank (who already has had to perform KYC on you to open an account) to attest to your age for age-restricted merchant sites (pornhub, gambling, etc) without sharing any more information than necessary. Flow works like this: 1) You go to gambling.com 2) They request you to verify your age 3) You choose "Bank Verification" 4) You trigger a WebAuthn Credential Creation flow 5) gambling.com…

    2025 · gist.github.com · its alternatives →

  3. 3

    A simple, modern and secure encryption tool (and Go library) with small explicit keys, no config options, and UNIX-style composability. - Release age v1.0.0 🏁 · FiloSottile/age

    2021 · github.com · its alternatives →

  4. 4
    Passbase▲345

    First of its kind no code identity verification engine

    2020 · parallelmarkets.com · its alternatives →

  5. 5

    Combining identity verification and secure user logins

    2021 · parallelmarkets.com · its alternatives →

  6. 6
    OwnID▲201

    An easy and secure passwordless add-on for your website

    2022 · ownid.com · its alternatives →

  7. 7
    humanID▲82

    Anonymous, spam-resistant & convenient single-sign on

    2022 · its alternatives →

  8. 8RW

    Hi, creator here. This is a demo of our recent work presented at Oakland (IEEE S&P): https://eprint.iacr.org/2022/368. The server and client code are written in Rust and available here: https://github.com/menonsamir/spiral-rs. The general aim of our work is to show that homomorphic encryption is practical today for real-world applications. The server we use to serve this costs $35/month! A quick overview: the client uses homomorphic encryption to encrypt the article number that they would like to retrieve. The server processes the query and…

    2022 · spiralwiki.com · its alternatives →

  9. 9
    Passkeyd▲160

    Passkey auth, minimalistic and self hosted

    2024 · its alternatives →

  10. 10
    Aster Key▲175

    Anonymized personal financial statements

    2023 · asterkey.com · its alternatives →

  11. 11

    Generate links that users can use to submit messages encrypted with your public key. - whitesmith/hawkpost

    2016 · github.com · its alternatives →

  12. 12PC

    A little while back I remember seeing a user on a certain anonymous imageboard asking for an invite to a selective email host. Only after a few minutes did the guy realize the perplexity of the situation. How do you insure against a race condition in a public forum with no way to direct message? Luckily, he nabbed the invite code, but it got me thinking about using PGP to provide a solution. This is meant to be a rough PoC and the UX is definitely not ready for the average Joe, but the functionality I'd like to think is there. What catbox.moe is to dropbox is what I'd like this to eventually…

    2022 · pubkey.pm · its alternatives →

  13. 13ID

    Hi everyone, I am Bojta Lepenye, and first of all, I want to thank the core developers of Hashcat. In my experience, it is quite literally the most capable tool available for offline password cracking across a wide range of use cases. I have spent the last 4 years (from age 14 to 18) extensively working with Hashcat and the tools surrounding it, and I have documented what I have learned throughout that time (since January 18, 2022) in my first book. During that period, I also had to continuously update and rewrite major sections as the field evolved. One example was the introduction of GPU…

    May 2026 · its alternatives →

  14. 14

    Hi HN, We (myself, Adhyyan1252 and yush_g) are undergrad students that hacked out this side project last month during Hack Lodge[1] (the ideas and many of the underlying circuits for which came from the 0xPARC community[2])! We’re extremely excited to share this new primitive. Besides the technical challenges building this project that folks here would find interesting (fixing the ZK proof compiler, modifying nodeJS V8 params etc.), we think this is a very novel use case for ZK tech, and ECDSA inside ZK-SNARKs is a starting point that unlocks many other ideas! :D A summarized version of our…

    2022 · github.com · its alternatives →

  15. 15

    Hey HN! I’m Lukas Dickie the founder of Changefly and I’m truly excited to share with you our latest release of Changefly ID with Anonymized Identity & Age Verification. By putting privacy first and using a novel approach to account protection, Changefly ID offers a path to a safer, more secure, and less-intrusive internet for everyone: - Changefly ID for anonymous authentication + ANONYMIZED identity & age verification for services that are required to verify minimum age - Zero-knowledge proofs, secure multi-party computation, temporary unique identifiers - Protects against bot attacks, bot…

    2025 · changefly.com · its alternatives →

  16. 16KS

    Hi HN! I built KeyPub.sh to solve the problem of user verification for CLI applications. It's essentially OAuth for the terminal, but using SSH keys that developers and users already have. - No installation needed - works with existing SSH setup - Privacy-focused: users control what email info is shared - Simple email verification process - Free public service - Perfect for CLI app developers who don't want to build user verification Try it with: `$ ssh keypub.sh about` Source code: https://github.com/skariel/keypub

    2024 · keypub.sh · its alternatives →

  17. 17
    Passkeys▲107

    Passwordless login

    2023 · developers.google.com · its alternatives →

  18. 18
    NoPass.me▲129

    Open-source identity verification

    2021 · nopass.me · its alternatives →

  19. 19

    Verify your user’s true identity in seconds

    2019 · parallelmarkets.com · its alternatives →

  20. 20

    Hey y'all, This is something I've been working on for a few months. It is a passkey system, similar to Apple Passkeys or a Yubikey, but it is entirely software based so you can sync credentials between devices. Passkeys (and FIDO devices in general) allow you to use public keys instead of passwords or codes to authenticate. For instance, you can just click "Approve" on the device/software instead of having to copy a code, and there are no passwords to phish. This is a new piece of tech, so website support for logins are still limited, but it can currently be used for 2FA anywhere a…

    2022 · bulwark.id · its alternatives →

  21. 21

    Software sandbox for storage of sensitive information in memory. - awnumar/memguard

    2017 · github.com · its alternatives →

  22. 22

    One-time identity & age verification for all platforms

    2025 · its alternatives →

  23. 23

    Passkey auth for your web app in a few lines of code

    May 2026 · plainkey.io · its alternatives →

  24. 24

    Contribute to soatok/age-php development by creating an account on GitHub.

    Apr 2026 · github.com · its alternatives →

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