Auth.js vs Silverfort: Features, Pricing and User Reviews 2026
Compare features, pricing, reviews, and more to make an informed decision
Auth.js
Auth.js is a free, open-source authentication library for web applications, supporting OAuth, magic links, and credentials across multiple frameworks.
Silverfort
Silverfort is an identity security platform that protects all users and systems across cloud and on-premise environments without agents or changes.
Auth.js
Auth.js is a free, open-source authentication library for web applications, supporting OAuth, magic links, and credentials across multiple frameworks.
Silverfort
Silverfort is an identity security platform that protects all users and systems across cloud and on-premise environments without agents or changes.
Auth.js
OAuth 2.0 and OpenID Connect support
80+ pre-configured authentication providers
Magic link email authentication
Username and password credentials
WebAuthn passwordless login
Multiple framework support (Next.js, SvelteKit, Express)
Database adapters for major databases
JWT or database sessions
Built-in security features
Custom page support
TypeScript ready
Open source and free
Silverfort
Universal MFA for all systems including legacy applications
Real-time identity threat detection and automated response
Service account discovery and protection
Privileged access management with JIT access
Authentication firewall blocks lateral movement
Identity security posture management
Agentless deployment with no system changes
Integration with Microsoft, Okta, AWS, and more
Compliance support for PCI DSS, SOC2
Protection for OT and industrial systems
Auth.js
Auth.js is completely free to use with no pricing tiers or hidden costs. As an open-source project, it is licensed under the ISC license, which allows anyone to use, modify, and distribute the software freely for both personal and commercial projects.
There are no subscription fees, no usage limits, and no charges for any features. All capabilities, including support for unlimited providers, database integrations, and advanced security features, are available at no cost. This makes Auth.js an excellent choice for projects of any size, from small personal websites to large enterprise applications.
The project is maintained by a community of contributors and is now part of Better Auth Inc. Developers can contribute to the project, report issues, and access community support through GitHub discussions completely free of charge.
Silverfort
Silverfort offers flexible pricing plans designed for different security needs. All pricing is provided through custom quotes based on your organization's size and requirements.
The Core plan includes Identity Security Posture Management to map your identity attack surface and find security gaps. It also provides Universal MFA to extend multi-factor authentication to legacy systems, command-line tools, and other previously unprotectable resources.
The Plus plan adds everything in Core, plus Service Account Visibility to discover all service accounts and Service Account Protection with virtual fencing policies and automated lifecycle management.
The Advanced plan includes everything in Plus, plus the Authentication Firewall for preventing lateral movement and Identity Threat Detection and Response with real-time threat detection and automated inline response, integrating with XDR and SIEM tools.
The Enterprise plan includes everything in Advanced, plus Access Intelligence for least privilege at scale and Privileged Access Security with privileged account discovery, virtual fencing, and just-in-time access controls.