Dev tools · alternatives · 2026

24 alternatives to Crossid

Add advanced sign-up & sign-in to your site / SAAS platform

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Crossid launched in 2021; newer entries below may have overtaken it.

1
OwnID▲201
An easy and secure passwordless add-on for your website
2022 · its alternatives →
2
Passbase▲344
First of its kind no code identity verification engine
2020 · its alternatives →
3
OneID▲169
A free 1Password competitor trying to kill the password
2015 · its alternatives →
4
Biometric Authentication by Passbase▲218
Combining identity verification and secure user logins
2021 · its alternatives →
5
ZeroID▲108
Shaping a secure future for your digital persona
2023 · its alternatives →
6
Stack Auth (YC S24)▲424
Open-source Auth0/Clerk alternative
2024 · hexclave.com · its alternatives →
7
AuthKit by WorkOS▲688
The world's best login box, powered by WorkOS + Radix.
2023 · authkit.com · its alternatives →
8
Autho▲152
cross-platform login box for web and native apps.
2014 · its alternatives →
9
Corbado▲571
Passkey-first authentication for developers
2024 · its alternatives →
10
humanID▲82
Anonymous, spam-resistant & convenient single-sign on
2022 · its alternatives →
11
MonoCloud for Startups▲167
One identity layer for your customers, APIs, and agents
Jul 2026 · monocloud.com · its alternatives →
12
One Account▲176
1 click sign-ups
2021 · its alternatives →
13
PlusIdentity▲184
Password manager on Slack, built for teams
2022 · its alternatives →
14
NoPass.me▲129
Open-source identity verification
2021 · its alternatives →
15
Passage▲286
Biometric authentication at your fingertips.
2022 · its alternatives →
16
SimpleID▲150
Add decentralized auth and storage to your app in 10 minutes
2019 · its alternatives →
17OA
Obligator – An OpenID Connect server for self-hosters▲273
2023 · github.com · its alternatives →
18SA
Stack, an open-source Clerk/Firebase Auth alternative▲144
Hey HN! Happy to finally launch Stack. We made it because we like to put apps into production quickly, and authentication & user management was taking up way too much time. We have components like and that automatically adapt to whatever theme & design system you're using. Check the blog post to see the example with Radix UI and Joy UI. Also, there's an admin dashboard for monitoring and editing accounts. Stack is 100% AGPL/MIT-licensed, so you can self-host it. Cheers!
2024 · stack-auth.com · its alternatives →
19HA
Hellō, a cooperative approach for online identity▲97
We are looking for feedback on a novel way to build and run a service for you to manage and share your identity. Demo: https://greenfielddemo.com
2022 · hello.coop · its alternatives →
20
MojoAuth 2.0▲263
Easiest way to add passwordless login to your apps & website
2022 · its alternatives →
21BO
BoxyHQ – open-source alternative to Auth0/WorkOS▲176
Hi HN, we are Deepak and Sama, co-founders of BoxyHQ (https://boxyhq.com/). BoxyHQ provides an open-source platform for developers to quickly integrate enterprise features into their software solutions. These include SAML Single Sign-On (SSO), Audit logs, with more to come :) Every B2B startup faces a common challenge when it comes to selling into the Enterprise; they need to allocate time and resources to support all the requirements to make their offering enterprise-grade. Supporting these requirements is a significant undertaking for the engineering team, especially since…
2022 · boxyhq.com · its alternatives →
22
YouID -- Credentials Generator▲10
Magic of Being You!
2021 · its alternatives →
23
Passkeyd▲160
Passkey auth, minimalistic and self hosted
2024 · its alternatives →
24
Entry▲71
Biometric Authentication Factor for SSO
2021 · 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 →