Dev tools · alternatives · 2026

24 alternatives to Shark WebAuthn library for .NET

Shark WebAuthn library for .NET

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

1
SharkAuth▲4
Auth infrastructure for the agentic era
May 2026 · sharkauth.com · its alternatives →
2
keychains.dev▲177
Hi HN — I’m a heavy OpenClaw user and, like many others, I’ve been thinking about how to give these new “unleashed” agents secure access to my accounts. Agents need API access to be useful. But API keys are long-lived secrets. And agents are not secure environments. So I built something for myself that quickly turned into a product: keychains.dev. The idea is simple: agents never see raw credentials. With Keychains.dev: • Agents make API calls via a drop-in replacement for curl or JavaScript’s fetch() • They use template variable names instead of embedding credentials • The request is…
Feb 2026 · keychains.dev · its alternatives →
3
Web3 ID▲109
Web3 auth that puts user privacy first, and it’s free
2022 · dock.io · its alternatives →
4
Vault Vision for Webflow▲452
No-code passwordless user logins and auth for Webflow sites
2023 · vaultvision.com · its alternatives →
5
Retriever – Securely share secrets over the internet▲193
Retriever (https://retriever.corgea.io/), an open-source research project to help users receive secrets and sensitive information without needing a server in the middle. It works by using Public-key cryptography to coordinate the message sharing between the two devices. Read more on why we built it here: https://retriever.corgea.io/why.html
2024 · retriever.corgea.io · its alternatives →
6
FramerAuth▲179
Authentication for Framer websites
2024 · frameauth.com · its alternatives →
7
a Demo of the WebAuthn Specification▲15
Demonstration of the WebAuthn specification.
2023 · webauthn.io · its alternatives →
8
Get encrypted data from people that don’t know how to encrypt▲275
Generate links that users can use to submit messages encrypted with your public key. - whitesmith/hawkpost
2016 · github.com · its alternatives →
9
KeysForWeb▲83
Request & share passwords securely and with 0 errors
2021 · its alternatives →
10
Xuperauth ▲81
Walletless and passwordless auth solution for Web3
2023 · its alternatives →
11
Securely Handle Encryption Keys in Go▲119
Software sandbox for storage of sensitive information in memory. - awnumar/memguard
2017 · github.com · its alternatives →
12
dCrypt▲77
Secure encryption made easy
2019 · dcrypt.app · its alternatives →
13
FractalCrypt 2.0 – free deniable encryption cryptoarchiver▲128
Free cross-platform deniable encryption cryptoarchiver - GitHub - zorggomat/FractalCryptGUI: Free cross-platform deniable encryption cryptoarchiver
2021 · github.com · its alternatives →
14OS
Open Source Authentication and Authorization▲128
I’m Rishabh and the co-founder and CTO at https://supertokens.com (YC S20). We offer open-source user authentication and we just released our user roles product for companies implementing authorization. Our users are web developers, and a prominent and adjacent pain point for our users is authorization. Developers typically implement two independent solutions for authentication and authorization. Offering AuthN and AuthZ in a single solution is something we’ve been thinking about for the last few years. Quick primer, authentication is knowing who the user is, and authorization is…
2022 · its alternatives →
15
A virtual Yubikey device for 2FA/WebAuthN▲166
A Virtual FIDO2 USB Device. Contribute to bulwarkid/virtual-fido development by creating an account on GitHub.
2022 · github.com · its alternatives →
16
Webacy▲178
A safer web3 for everyone
2022 · webacy.com · its alternatives →
17
I created a web app to encrypt/decrypt messages using Web Crypto API▲35
Send secret messages using Web Crypto API 🤫.
2024 · webcrypto-private-messages.vercel.app · its alternatives →
18
Encrypted VPN in 2k lines of Go▲123
Simple, auditable & elegant VPN, built with TLS mutual authentication and TUN. - twitchyliquid64/subnet
2017 · github.com · its alternatives →
19
Shield▲77
Authentication & payment for any website without code
2021 · its alternatives →
20
Torii – a framework agnostic authentication library for Rust▲80
Torii is a powerful authentication framework for Rust applications that gives you complete control over your users' data. - cmackenzie1/torii-rs
2025 · github.com · its alternatives →
21
Web API Authentication with SSH Public Keys▲12
Web API Authentication with SSH Public Keys. Contribute to teddziuba/pqauth development by creating an account on GitHub.
2013 · github.com · its alternatives →
22
Go library for concise, unambiguous and URL-safe UUIDs▲50
A generator library for concise, unambiguous and URL-safe UUIDs - lithammer/shortuuid
2015 · github.com · its alternatives →
23
Replace CAPTCHAs with WebAuthn passkeys for bot prevention▲71
I built Nocaptcha after getting frustrated with traditional CAPTCHAs both as a user and developer. WebAuthn passkeys offered a promising alternative that's both more secure and user-friendly. What makes Nocaptcha different: - Uses WebAuthn standard instead of puzzle-solving - No need for users to remember passwords or solve puzzles - Open source Current limitation: Working with W3C WebAuthn Community Group on true passkey disposal for this use case. Looking for feedback particularly on: 1. Integration experience 2. User experience compared to traditional CAPTCHAs
2024 · github.com · its alternatives →
24
Comprehensive authentication library for TypeScript▲72
The most comprehensive authentication library for TypeScript
2024 · github.com · its alternatives →

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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 →