The biggest advantage of Cognito is that it's a part of the AWS ecosystem and integrates well with other AWS services. The free tier comes with 50,000 MAUs and the price for each additional MAU starts at $0.0055/month and goes down to as low as $0.0025/month as you scale to tens of millions of users. It integrated with four federated identity providers - your users can sign up with Facebook, Google, Apple and Amazon.

Google's Firebase is an entire app development platform that's packed with features.It comes with storage, cloud functions, monitoring and, of course, user authentication. The free tier comes with 50,000 MAUs. Beyond that pricing start at $0.0055/MAU and goes down to as low as $0.0025/MAU as you scale to millions of users. Firebase authentication supports email and password auth, phone auth, magic links, two-factor authentication and social identity providers - mainly Google, Google Play Games, Facebook, Apple, Microsoft, Twitter, GitHub and OAuth access tokens.

Auth0 is an identity and access management (IAM) platform designed to simplify authentication and authorization for applications. It provides a flexible solution that allows developers to implement secure login systems without having to build them from the ground up. Auth0 supports various authentication methods, including username-password credentials, social logins (like Google, Facebook, and GitHub), enterprise identity providers (such as Active Directory and SAML-based systems), and passwordless options. The platform is highly adaptable, offering over 30 software development kits (SDKs) that cater to a wide range of languages and frameworks—JavaScript, Python, .NET, iOS, Android, and more. This makes integration straightforward regardless of the tech stack. Beyond basic authentication, Auth0 offers advanced features like multi-factor authentication (MFA), single sign-on (SSO), and fine-grained authorization. These tools enable organizations to enforce complex access control policies, supporting both role-based (RBAC) and attribute-based (ABAC) models. Auth0 also addresses enterprise needs through features like user provisioning, directory synchronization, and support for B2B, B2C, and B2E use cases. It’s designed with scalability in mind, making it suitable for both startups and large enterprises. The platform’s extensibility allows developers to customize authentication flows, implement rules for conditional access, and integrate third-party services. Since its acquisition by Okta, Auth0 operates as a product unit under the Okta umbrella, complementing Okta’s broader suite of identity solutions while maintaining a developer-first focus. This combination brings together Okta’s enterprise-grade security with Auth0’s developer-centric approach, offering a comprehensive solution for modern identity challenges.

Appwrite is an open-source platform for building scalable applications. It comes with authentication, databases, storage, and functions. It's basically a complete development platform. They have an extremely generous free plan with 75,000 MAUs free of charge and their Pro plan is only $15/month. Appwrite offers email and password login, phone auth, magic links, email OTP, anonymous login, JWT login, SSR login, custom tokens, and two-factor authentication.

Keycloak is an open source identity and access management solution. It supports Keycloak single-sign-on and OpenID Connect or SAML 2.0 Identity Providers (Google, Facebook, GitHub etc).

Okta is an identity provider for organizations. It offers enterprise solutions for managing workforce and employee identities. It's HIPAA BAA and PCI compliant.

Indie Hackers Stacks is a directory of indie products with their software stacks. You can use it to discover the tools that other makers use to build their products. Publish your own stack and get free exposure and some SEO juice.

This directory boasts 20,000 subscribers and if you get featured, you get a backlink. You'll also be featured in the newsletter. Insanely Cool Tools is free to use but you may need to pay if you want to skip the queue.

Shnoco offers a directory of no-code tools. If your product allows users to build and develop software and products without code, it's the place to get listed. They get 27,500+ visitors a month, mostly bootstrapped entrepreneurs, solo founders and no-code enthusiasts.

AI Tools is a directory of all AI-driven products. It features AI assitants, SEO AIs, eCommerce AIs, programming AIs and many more. It's easy to submit your tools and it's free to use.

Indietool is a directory for apps and tools built by indie hackers and solopreneurs. You receive a dofollow link to help you with SEO.

Tools.so is a directory of high quality tools from all over the internet. Some examples include Notion, Prisma, Mixpanel, Render and Betalist.

AI Tools Explorer is a 100% human-curated and edited directory of top-quality, SFW AI tools and apps, organized by category and updated daily with helpful AI guides and resources.

A directory of writer tools, including AI-generators, AI-detectors, and plagiarism scoring systems. Our curated collection highlights the most popular writing tools, ranked according to user satisfaction and effectiveness. We've categorized these tools into four main segments: AI Writing Assistants & Generators, Plagiarism Checkers & AI Detectors, Copywriting Tools & Content Generators, and Book Writing & Creative Writing Tools. Each section is designed to help you find the right stack for your specific writing and copywriting needs.

Discover the right SEO stack for your project by exploring our curated list of tools. From AI-driven optimizers to widely-used research platforms, we've got everything to help you succeed in the competitive digital landscape.

Your ultimate tool finder, providing a curated list of productivity apps and tools designed to enhance your efficiency and streamline your workflow. Your ultimate tool finder, providing a curated list of productivity apps and tools designed to enhance your efficiency and streamline your workflow.

These days, AI directories are popping up all over the place. You’ve got huge lists—like that GitHub one —best-of-ai/ai-directories—and tons of sites trying to round up every AI tool under the sun. It’s a lot, right? Problem is, most of them are packed with meh tools. You dig through glitchy apps or overhyped stuff that doesn’t even work, and it’s a total time suck. Marketers like us? We don’t have time for that—we need tools that actually deliver. That’s where There’s an AI comes in. It’s not like those other messy directories. This one’s all about the good stuff—think of it like a stash of hidden gems, no junk allowed. You can navigate easily on different categories in it, jumping from content tools to ad optimizers without breaking a sweat. And the search? Oh, it’s clutch. You can type in whatever you want, and it pulls up only the best—no shitty tools clogging up your screen.

Discover, compare, and choose from a curated list of the best tools for startups. Equip your startup with the right tools to grow and scale fast. Discover, compare, and choose from a curated list of the best tools for startups. Equip your startup with the right tools to grow and scale fast. Discover, compare, and choose from a curated list of the best tools for startups. Equip your startup with the right tools to grow and scale fast.

SaaSBoilerplates.dev is a curated directory that showcases a wide range of SaaS boilerplates, starter kits, and frameworks to help developers quickly launch their SaaS projects. The website features a carefully selected collection of tools and resources that cover various aspects of SaaS development, from authentication and payments to user management and deployment. Key Features 1. Extensive collection: SaaSBoilerplates.dev offers a comprehensive selection of SaaS boilerplates, catering to different frameworks, tech stacks, and development needs. 2. Curated by hand: The boilerplates are hand-picked and reviewed by a human to ensure quality, reliability, and relevance. No scraping, no AI-generated crap. 3. Detailed information: Each boilerplate listing includes a description, pricing, and key features to help readers make informed decisions. 4. Variety of use cases: The boilerplates cover a wide range of SaaS applications, including marketplaces, AI tools, landing pages, and more. Benefits 1. Time-saving: By leveraging pre-built boilerplates, developers can significantly reduce the time and effort required to set up the foundation of their SaaS project. 2. Cost-effective: Using boilerplates can help lower development costs by providing a solid starting point and reducing the need for custom development. 3. Scalability: Many boilerplates are designed with scalability in mind, making it easier to grow and expand the SaaS application as it gains traction. 4. Reduced technical debt: By using well-tested and maintained boilerplates, developers can minimise the risk of technical debt and ensure the long-term stability of their SaaS application. By leveraging the resources available on SaaSBoilerplates.dev, users can focus on building their core product features and bringing their SaaS ideas to life faster than ever before.