OpenAlternative
Browse
Alternatives
Categories
Tech Stacks
Self-hosted
Advertise
Submit
Sign In
Latest tools
Self-hosted
Coming Soon
Alternatives
Categories
Tech Stacks
Tags
Submit
About Us
Advertise
Ad
Learn more
/
Categories
/
Authentication & SSO
/
Using SCSS
Open Source Authentication & SSO Providers using SCSS
A curated collection of the best open source platforms providing authentication, Single Sign-On (SSO), and user management. using SCSS.
Stars
Forks
Last commit
Stars
Forks
Last commit
Stars
Forks
Last commit
Stars
Forks
Last commit
Stars
Forks
Last commit
Stars
Forks
Last commit
Ad
Databuddy
– AI-Native Web & Product Analytics you can trust, turn manual dashboards into automated insights.
Start Tracking Free
Popular Proprietary Software:
Spotify Alternatives
2
Claude Code Alternatives
16
Notion Alternatives
19
Lovable Alternatives
5
Wispr Flow Alternatives
6
n8n Alternatives
6
CapCut Alternatives
5
Discord Alternatives
10
Power BI Alternatives
10
Cursor Alternatives
14
Microsoft Word Alternatives
5
Microsoft 365 Alternatives
6
Popular Categories:
Low-Code/No-Code Platforms
37
AI Agent Platforms
22
Project Management Suites
21
PaaS & Deployment Tools
18
AI Personal Assistants
19
Infrastructure Monitoring Tools
16
Note-Taking Tools
16
Web Analytics
16
Backend-as-a-Service (BaaS) Tools
16
Team Chat & Messaging Tools
14
Workflow Automation Tools
16
Collaborative Workspaces
16
Order by
▼
Zitadel
Secure, customizable identity infrastructure for developers
Stars
14,139
Forks
1,121
Last commit
14 hours ago
ZITADEL provides a comprehensive identity management solution with easy APIs, customizable workflows, and serverless deployment options.
Open Source
Alternative to:
Supabase
Logto
Secure, seamless authentication for modern applications
Stars
12,176
Forks
825
Last commit
19 hours ago
An open-source identity solution offering customizable login experiences, multi-tenant support, and comprehensive user management.
Open Source
Alternative to:
Clerk
Defguard
Zero-Trust VPN with built-in 2FA/MFA and SSO capabilities
Stars
2,744
Forks
104
Last commit
2 days ago
Enterprise-grade open source VPN solution combining WireGuard with mandatory 2FA/MFA and integrated OpenID Connect SSO for secure remote access
Open Source
Alternative to:
NordVPN
Ad
Logto
Modern auth infrastructure for developers.
Visit Logto