Top OTP GitHub Repositories & Tools (2026)

🧑‍🚀 Authentication and authorization infrastructure for SaaS and AI apps, built on OIDC and OAuth 2.1 with multi-tenancy, SSO, and RBAC.

FreeRADIUS - A multi-protocol policy server.

The tiniest OpenID Certified™ authorization and authentication server you have ever seen.

A Web app to manage your Two-Factor Authentication (2FA) accounts and generate their security codes

One Time Password (OTP) / 2FA for Node.js and Browser - Supports HOTP, TOTP and Google Authenticator

A modern remote terminal workspace

Two-Factor Authentication for WordPress.

Project management inside Obsidian. Table, Gantt and Kanban over plain Markdown notes, with a local API for agents and scripts.

Real-time PC power consumption monitor - see watts per app & per component, track your carbon footprint & electricity cost.