Compare Auth.js vs. Clerk

FusionAuth is the authentication and authorization platform engineered for developers who demand flexibility and control. Built from the ground up to integrate with any stack, every feature — from user registration to MFA and SSO — is exposed via a modern, well-documented API. Support for every major identity protocol is included out of the box: OIDC, SAML, OAuth2, JWT, passwordless login, social sign-on, and more. Whether you’re building a greenfield app or retrofitting auth into a legacy system, FusionAuth adapts to your use case — not the other way around. Need compliance? FusionAuth helps you meet GDPR, HIPAA, and COPPA standards quickly and reliably. Deploy it your way: install on Linux, Windows, macOS, Docker, or Kubernetes — or go with FusionAuth Cloud, our managed SaaS hosting. No black boxes. No vendor lock-in. Just powerful, customizable auth that works the way you do.

Auth0 takes a modern approach to Identity and enables organizations to provide secure access to any application, for any user. Auth0 is highly customizable, and simple yet flexible. Safeguarding billions of login transactions each month, Auth0 delivers convenience, privacy, and security so customers can focus on innovation. With Auth0, you can rapidly integrate authentication and authorization for web, mobile, and legacy applications, with new Fine Grained Authorization (FGA) that goes beyond role-based access control.

SurveyJS is a set of four open-source JavaScript libraries that offer the benefits of a tailor-made in-house survey application, while considerably reducing the time and resources needed to deploy the system. These libraries are independent of specific server code or database requirements and seamlessly integrate with popular JavaScript frameworks, including React, Angular, Vue.js, jQuery, Knockout, and more. They are designed to communicate with any server that can handle JSON requests, ensuring compatibility with various server architectures and databases. The product family is composed of: - An open-source MIT-licensed rendering library that renders dynamic JSON-based forms in your web application, and collects responses. - A self-hosted drag & drop form builder that features an integrated CSS-based theme editor and a GUI for conditional rules. It automatically generates JSON definitions (schemas) of your forms in real time. - PDF Generator, a library that renders SurveyJS surveys and forms as PDF files in a browser; - The Dashboard library that allows you to simplify survey data analysis with interactive and customizable charts and tables. Visit our website to try out and evaluate our full-scale demo for free.

Sumsub is a single verification platform that allows you to onboard more customers worldwide, speed up their access, reduce costs, and fight digital fraud. Sumsub combines effective verification flows with higher conversion rates worldwide through a powerful, all in one suite designed for a wide variety of needs: KYC/AML verification, KYB verifications, payment fraud prevention and face authentication.

Cerberus FTP Server provides a secure and reliable file transfer solution for the demanding IT professional. Supporting SFTP and SCP, FTP/S, and HTTP/S, Cerberus is able to authenticate against Active Directory and LDAP, run as a Windows service, has native x64 support, includes a robust set of integrity and security features and offers an easy-to-use manager for controlling user access to files and file operations.

Clazar is the Enterprise Cloud GTM Management Platform designed for cloud Go-to-Market teams looking to unlock faster growth through AWS, Microsoft Azure, and Google Cloud marketplaces. Built to simplify and scale marketplace revenue, Clazar brings every step of the cloud commerce journey into a single unified system, from marketplace listing creation and offer management to co-selling execution, usage metering, invoicing, and revenue reconciliation. Cloud GTM teams can operationalize marketplace deals with zero manual overhead while accelerating sales cycles and improving financial accuracy. Clazar integrates seamlessly with Salesforce and HubSpot, allowing sales, partnerships, RevOps, and finance teams to manage marketplace and co-sell motions directly within their existing workflows. ISVs can quickly publish listings, generate private offers in minutes, automate approvals and governance processes, and manage contracts end-to-end without jumping between disconnected tools. With real-time dashboards and analytics, revenue teams gain complete visibility into pipeline performance, billing status, payouts, and cash flow across every cloud marketplace channel. Enterprise-ready by design, Clazar offers robust governance controls, industry-leading security compliance like SOC2 and ISO, and a powerful embedded automation builder to help organizations scale marketplace operations efficiently and confidently. Trusted by 300+ high-growth companies, including Supabase, Zapier, Pinecone, Replit, Perplexity, Confluent, and Secureframe, Clazar is the platform powering the next generation of cloud marketplace success.

Apify provides the infrastructure developers need to build, deploy, and monetize web automation tools. The platform centers on Apify Store, a marketplace featuring 10,000+ community-built Actors. These are serverless programs that scrape websites, automate browser tasks, and power AI agents. Developers create Actors using JavaScript, Python, or Crawlee (Apify's open-source crawling library), then publish them to the Store. When other users run your Actor, you earn money. Apify manages the infrastructure, handles payments, and processes monthly payouts to thousands of active developers. Apify Store offers ready-to-use solutions for common use cases: extracting data from Amazon, Google Maps, and social platforms; monitoring prices; generating leads; and much more. Under the hood, Actors automatically manage proxy rotation, CAPTCHA solving, JavaScript-heavy pages, and headless browser orchestration. The platform scales on demand with 99.95% uptime and maintains SOC2, GDPR, and CCPA compliance. For workflow automation, Apify connects to Zapier, Make, n8n, and LangChain. The platform also offers an MCP server, enabling AI assistants like Claude to discover and invoke Actors programmatically.

Thinfinity Workspace 7.0's Technical Highlights: - Progressive Web App (PWA) technology for a seamless user experience - Integrated Thinfinity VNC, VirtualUI, and z/Scope for maximum versatility - HTML5 terminal emulation supporting DEC terminals, TN 5220, and TN 3270 protocols - Robust enterprise-grade audit logs for security and compliance management - Proprietary VNC protocol for real-time monitoring and troubleshooting IMPROVE USER EXPERIENCE - Deliver business-critical apps, desktops and files from a single web portal. - Provide simplified remote browser access for your users, while confining them to only the resources that they need. SIMPLIFY IT AND AVOID VPNs - Forget traditional VPN deployments and complexities. - Enable access from Chromebooks, mobile devices or any computer with a Web Browser. Zero setup. KEEP YOUR BUSINESS SECURE - Use enterprise-grade encrypted connections. - Integrate with your existing and external identity platforms. - Apply 2FA or MFA policies with all identity providers.

ScreenMeet offers a suite of secure, browser-based remote support and screen-sharing tools designed to enhance customer service and IT support. With capabilities like remote desktop access, live voice and video support, co-browsing, and asynchronous screen recording, ScreenMeet allows agents to assist customers or employees seamlessly. It integrates with major ITSM, CRM, and contact center platforms such as ServiceNow, Salesforce, and Microsoft Dynamics 365, providing a unified support experience. Designed for enterprises, ScreenMeet ensures high security, scalability, and flexibility, making it ideal for businesses aiming to improve support efficiency and customer satisfaction.

Nasdaq Metrio is a sustainability reporting platform tailored for businesses at various stages of their ESG journey. It merges meticulous data collection, tracking, and management with emissions calculations and assurance. Additionally, it provides a comprehensive library of metrics from various rater and ranker frameworks as well as regulatory bodies, all cross-referenced, de-duplicated, and clarified, complete with guidance notes.