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.

Clerk is a comprehensive user management and authentication platform designed to streamline how developers handle user accounts within web and mobile applications. It offers a suite of embeddable UI components—such as <SignIn/>, <SignUp/>, <UserButton/>, and <UserProfile/>—that integrate seamlessly into your application without redirecting users off-site. These components are fully customizable to match your brand, making the user experience cohesive and frictionless. Under the hood, Clerk provides a robust API and SDKs compatible with modern frameworks like Next.js, Remix, React, and Expo. It handles the entire authentication lifecycle, supporting multifactor authentication (MFA), session management, passwordless sign-in (via magic links or one-time passcodes), and traditional password-based methods with breach detection. The platform also integrates social sign-on (SSO) with over 20 providers, enabling quick user onboarding while adhering to security best practices. Clerk’s security posture includes SOC 2 Type 2 certification and CCPA compliance, with continuous third-party audits and penetration testing. Fraud prevention measures, like disposable email blocking and bot detection powered by machine learning, are built-in to reduce spam and abusive sign-ups. For B2B SaaS applications, Clerk provides advanced multi-tenancy features, enabling organization-based user management with custom roles, permissions, auto-join functionality based on email domains, and invitation systems—all accessible through both code and an admin dashboard. Developers benefit from rapid integration, significantly reducing the time spent on building authentication systems from scratch. Clerk acts as the single source of truth for user data and integrates seamlessly with popular backend services like Supabase, Firebase, and Convex. With free access for up to 10,000 monthly active users, it’s positioned as a scalable solution that grows with your application’s needs.

Supabase is the open-source alternative to Firebase. Like Firebase, it's a complete app development platform with user authentication, cloud functions, APIs, Postgres database, storage, vector embeddings, and other features. Supabase projects come with PostgreSQL's policy engine for fine-grained user access rules. It has social login integrations with Google, Facebook, GitHub, Azure (Microsoft), Gitlab, Twitter, Discord, and many more. They offer a customizable authentication component for React. Phone login and MFA can be added through third-party SMS providers such as Twilio or Bird. The free tier comes with 50,000 monthly active users. The Pro plan, at $25/month, comes with 100,000 MAUs and $0.00325/MAU beyond that.

Stytch provides a suite of tools designed to simplify authentication, authorization, and security for web and mobile applications. If you're developing an app and need a way for users to log in—whether with passwords, passkeys, or entirely passwordless methods—Stytch offers APIs and SDKs that handle these complexities. Their focus is on making authentication seamless for both developers and end-users while ensuring high security standards. For businesses, particularly B2B SaaS companies, Stytch enables advanced features like multi-tenancy, role-based access control (RBAC), and single sign-on (SSO). They provide an embeddable admin portal, allowing enterprise customers to manage their own authentication configurations, organizational settings, and integrations with identity providers—without constant developer involvement. Stytch places a strong emphasis on scalability and flexibility. Their tools are designed to “just work” across a range of use cases, from simple consumer apps to complex enterprise platforms. Developers can choose how much of the authentication flow they want to control—using pre-built UI components for quick implementation or leveraging headless SDKs and backend APIs for a fully customized experience. Security and fraud prevention are also core to Stytch’s offering. They provide real-time bot detection, device-aware multi-factor authentication, and intelligent rate limiting to protect against credential stuffing and other forms of account abuse. Their infrastructure ensures that login codes and authentication requests are delivered reliably, even when SMS or email providers fail. Stytch supports a broad range of programming languages and frameworks, including Python, Node.js, Java, React, and iOS, making integration into existing tech stacks straightforward. Their platform is designed for developers who want to build secure, user-friendly authentication systems without reinventing the wheel.

Ory is an API-first identity manager. They offer authentication, analytics, access control, machine-to-machine authentication and more. They have SDKs for the major languages: - Dart - .NET - Elixir - Go - Java - JavaScript - PHP - Python - Ruby - Rust Unfortunately, they don't offer a free tier. Pricing starts at $29/month and includes 1,000 daily active users. Then it's $30 / 1,000 additional DAUs.

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.

Formerly known as NextAuth. It's is an open-source authentication library originally built for NextJS. Auth.js is free to use and comes with over 80 integrations for various third-party identity providers such as Google, Facebook, Auth0, Apple etc. You can use it with your own database if you choose to. It works with MySQL, Postgres, MSSQL and MongoDB. Auth.js is compatible with Next.js, SvelteKit and SolidStart as of March 2024.

Gluu offers various authentication solutions based on open-source software. There is a self-hosted solution, a managed solution, and a free fully open-source solution based on the Linux Foundation Janssen Project.

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

GoPasswordless is an authentication service and SDK that focuses on enabling passwordless authentication flows in web apps.

Retext is a macOS text expander that simplifies repetitive typing by using AI-driven shortcuts. Unlike traditional expanders, Retext doesn’t require memorizing shortcuts; it intelligently suggests them across any app or browser. Key features include a native macOS design, universal compatibility, and reliable functionality, ensuring it’s always available. By organizing snippets intuitively, Retext boosts productivity, providing users with a seamless typing experience. Whether for professional emails, coding, or customer support, Retext is the ultimate tool to streamline repetitive tasks.

Transgate is an advanced speech-to-text web application that simplifies the process of converting audio and video content into accurate and editable text. Built with user experience in mind, Transgate offers an easy user experience for professionals in a range of professions, including researchers, journalists, healthcare experts, and content creators. Key features of Transgate include high accuracy, with transcription quality reaching up to 98%, ensuring that even complex recordings are captured with precision. The platform offers robust multi-language support, making it suitable for a global audience that requires transcription services in various languages. Users can also make edits to their transcriptions directly on the platform before downloading, giving them complete control to perfect their content. Additionally, Transgate prioritizes data privacy and security, allowing users to manage and protect their sensitive information confidently. One of the standout aspects of Transgate is its cost-effective, pay-as-you-go model, which ensures that users only pay for the transcriptions they need without any long-term commitments or hidden fees. This flexible approach makes Transgate a budget-friendly choice for both individuals and businesses. Using Transgate provides numerous benefits. It saves valuable time by automating the transcription process, enabling users to focus on higher-priority tasks. The platform enhances productivity by delivering fast and reliable text output, while also improving team collaboration with easy sharing and editing options for transcribed documents. Transgate operates effortlessly: users simply upload their audio or video file, and the AI quickly transcribes the content. From there, users can make any necessary edits, review the text for accuracy, and download the final version, making the entire transcription process efficient, flexible, and hassle-free.

Echowave is an online video editor that allows users to edit videos directly in their web browser without any software installation. With its intuitive interface and robust editing tools, Echowave makes video editing accessible and convenient for everyone. Key Features Cloud-Based Editing: Edit videos online without the need to download or install any software, accessible from any device with internet connectivity. User-Friendly Interface: An intuitive design that simplifies the video editing process for beginners while offering advanced features for professionals. Benefits Saves Time and Resources: Start editing instantly without installing software, saving both time and storage space. Easy Collaboration: Share projects with team members and collaborate in real-time, enhancing productivity and teamwork. Use Case A freelance content creator needs to quickly edit and publish videos for social media platforms. Using Echowave, they can efficiently edit videos online and share them directly, streamlining their workflow without dealing with complex software.

Scribbl is an AI meeting assistant that transforms conversations into searchable, shareable knowledge while you focus on what matters - the conversation. With smart summaries, instant video highlights, and seamless integrations, your meetings become actionable intelligence without the busy work. Key Features - Smart Transcription & Recording: Crystal-clear transcripts and video capture without intrusive bots or complicated setup - AI-Powered Summaries: Automatically extracts key topics, decisions, and action items from every conversation - Instant Navigation: Jump to any moment using AI-enhanced video search and topic breakdown - Team Intelligence: Automated sharing rules and collections ensure insights reach the right people - Business Tool Integration: Seamlessly syncs with HubSpot, Pipedrive, Slack, and Google Drive Benefits - Time Reclaimed: Stop taking manual notes and focus fully on your conversations - Perfect Memory: Never miss a detail with searchable transcripts and smart summaries - Effortless Documentation: Meeting insights automatically flow into your CRM and team tools - Enhanced Collaboration: Keep everyone aligned with intelligent sharing and organized collections - Client Success: Streamline follow-ups and ensure every client interaction is captured and actionable Use Case Use Scribbl to automatically capture, summarize, and distribute critical meeting insights across CRM and collaboration platforms. For example, A sales team uses Scribbl to automatically document client meetings, with notes flowing directly into HubSpot and key moments shared instantly with account managers. Team leads gain visibility through automated collections, while clients receive polished follow-ups faster - all without anyone taking manual notes.

Make It Quick simplifies video creation, turning your words into fully edited, high-quality videos in minutes. Key Features 1. Automatically generates short videos (30 to 60 seconds) 2. Automatically generates long videos (60 to 120 seconds) 3. Auto-generates script 4. Full Editorial Access 5. 4K resolution Benefits 1. Saving time 2. Proven viral video style Use Case Here are several use cases for Make It Quick, showcasing how the platform can be used across different industries and for various needs: 1. Content Marketing Use Case: A small business wants to promote their latest product on social media. How It Helps: - Generate a script highlighting the product’s benefits and unique features. - Create an engaging video with AI visuals (e.g., product in action, lifestyle imagery) and voice narration. - Share the video directly to platforms like TikTok, Instagram, or YouTube Shorts. 2. Educational Content Use Case: An educator or tutor wants to create short, informative videos for their students. How It Helps: - Enter a topic like “The Solar System” and generate a script explaining it concisely. - Use AI to generate visuals of planets, space, and astronomical phenomena. - Add narration to explain concepts, making the content engaging and accessible. 3. Social Media Influencers Use Case: A lifestyle influencer wants to consistently post creative content to grow their audience. How It Helps: - Quickly create videos on trending topics or personalized messages to followers. - Use multi-language support to expand their reach to international audiences. - Customize visuals and scripts to align with their personal brand.

Improve your writing in any macOS application with AI assistance. Quickly correct grammar mistakes, change writing styles, or translate text.

Remusic provides an easy-to-use platform for musicians and creators at any level. With our one-click music generation, you can quickly create custom tracks that fit your artistic vision, no extensive music knowledge required. The unique AI Singer feature lets you choose from over 1000 vocalists, each adding their own style to your songs, making every version feel fresh and unique. Plus, our music video generator turns your text and images into beautiful visual stories that enhance your music. Our vocal extraction tool allows you to isolate and edit vocals, perfect for remixing or making mashups. Finally, converting your music into traditional sheet music makes it simple to share your work with other musicians, promoting collaboration and creativity within the community.

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.