Dev tools · alternatives · 2026
24 alternatives to Nile-Auth – open-source auth designed for multi-tenant apps
There are quite a few authentication services and libraries out there, but the vast majority treats tenants / organizations as an afterthought - in case of Firebase, tenants are literally in a different product. In B2B apps, users, tenants and data as fundamentally interrelated - users belong to tenants and authenticate in order to access data that belongs to the tenant. This means that user and auth data belong in the same database where the tenant data is stored (in our case, Postgres), and that the database should be aware of the user identity and control the access to tenant data.…
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
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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 →
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One identity layer for your customers, APIs, and agents
Jul 2026 · monocloud.com · its alternatives →
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Authorizer▲296Open source authentication and authorization solution
2021 · authorizer.dev · its alternatives →
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InstantDB▲320Complete backend with auth and storage in one prompt
Apr 2026 · instantdb.com · its alternatives →
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SuperTokens▲146Open source email & password auth for developers
2020 · supertokens.com · its alternatives →
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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 →
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Hi folks! I'm Ulysse, and Tesseral (https://github.com/tesseral-labs/tesseral) is open-source auth for B2B SaaS. Early in my career, I worked on enterprise auth and security features at Segment. I've been obsessed with the subtle details of enterprise software ever since. For example, I wrote an implementation of SAML in the early days of the COVID pandemic because I thought it was fun. Over the years, I've felt frustrated that too few people have seemed interested in making auth obvious for developers of business software. Auth really doesn't need to be so confusing. We…
2025 · github.com · its alternatives →
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Appwrite® - complete cloud infrastructure for your web, mobile and AI apps. Including Auth, Databases, Storage, Functions, Messaging, Hosting, Realtime and more - appwrite/appwrite
2022 · github.com · its alternatives →
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Cloud-native authorization for modern applications and APIs - aserto-dev/topaz
2022 · github.com · its alternatives →
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An open-source and end-to-end encrypted SDK and backend
2020 · etebase.com · its alternatives →
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Announcing Appwrite 0.14 with 11 Cloud Function Runtimes! 🥳
2022 · github.com · its alternatives →
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Permify was born out of our repeated struggles with authorization. Like any other piece of software, authorization starts small but as things grow scaling it becomes a real pain and begins to hinder product development processes. Ad-hoc authorization systems scattered throughout your app’s codebase are hard to manage, reason about, and iterate on as the company grows. Also you will need to have more specific access controls as things grow. Traditional approaches like RBAC is inefficient for defining granular permissions such as resource-specific, hierarchical, or context-aware permissions.…
2024 · github.com · its alternatives →
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An open-source authorization as a service inspired by Google Zanzibar, designed to build and manage fine-grained and scalable authorization systems for any application. — Permify is now part of FusionAuth 🎉 - Permify/permify
2022 · github.com · its alternatives →
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Combining identity verification and secure user logins
2021 · parallelmarkets.com · its alternatives →
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The easiest 3rd-party sign-in for your apps and APIs
2020 · its alternatives →
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Nango (https://github.com/NangoHQ/nango) provides pre-built OAuth flows, secure token storage and automatic refreshes for 40+ APIs and counting. Why we built Nango: We built Nango to solve the pain of accessing OAuth APIs. Despite OAuth being a standard protocol in theory, it remains a major burden to implement it, even with the help of a library. You still need to add endpoints and logic to your app for the server-side dance, implement token refreshes, build & secure your token storage, deal with redirects on the frontend etc. But the worst part is that (almost) every…
2023 · nango.dev · its alternatives →
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AuthPass▲75Simple, open source, cross platform password manager 😅️
2020 · authpass.app · 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 →