A pure Unix shell script ACME client for SSL / TLS certificate automation
- acme
- acme-protocol
- certbot
- shell
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Certbot is EFF's tool to obtain certs from Let's Encrypt and (optionally) auto-enable HTTPS on your server. It can also act as a client for any other CA that uses the ACME protocol.
- acme
- acme-client
- certbot
- certificate
The authentication glue you need.
- saml
- saml-idp
- saml-sp
- oauth2
Cryptomator for Windows, macOS, and Linux: Secure client-side encryption for your cloud storage, ensuring privacy and control over your data.
- cryptomator
- java
- cloud-storage
- cryptography
Bitwarden client apps (web, browser extension, desktop, and cli).
- webextension
- javascript
- bitwarden
- typescript
Google's officially supported Node.js client library for accessing Google APIs. Support for authorization and authentication with OAuth 2.0, API Keys and JWT (Service Tokens) is included.
- google-api
- nodejs
- client
Let's Encrypt/ACME client and library written in Go
- letsencrypt
- acme
- certificate
- tls
A native macOS KeePass client
- keepass
- kdbx
- macpass
- password-manager
Go OAuth2
- go
- golang
- oauth2
- oauth2-client
The ultimate Python library in building OAuth, OpenID Connect clients and servers. JWS, JWE, JWK, JWA, JWT included.
Enterprise-grade Shopify Admin API authentication adapter — OAuth 2.0 Client Credentials Grant with automatic token refresh.
- authentication
- client-credentials
- httpx
- oauth2
Easy integration with OAuth 2.0 service providers.
Nginx webserver and reverse proxy with php support and a built-in Certbot (Let's Encrypt) client. It also contains fail2ban for intrusion prevention.
- hacktoberfest
Swift based OAuth library for iOS
- oauthswift
- oauth
- oauth2-client
- oauth-client
A Go OpenID Connect client.
- golang
OAuth 2 / OpenID Connect Client API for JavaScript Runtimes
- oidc
- openid
- openid-client
- openid-connect
OAuth client integration for Symfony. Supports both OAuth1.0a and OAuth2.
🔐 oauth2 - A Ruby wrapper for the OAuth 2.0, & 2.1 Authorization Frameworks, including OpenID Connect (OIDC)
- authentication
- authorization
- oauth2
- oauth2-client
Agent-Native multi-platform reverse engineering and CWE-602 client-side authorization audit workbench.
OpenID Connect (OIDC) and OAuth2 protocol support for browser-based JavaScript applications
- oidc
- oidc-client
- typescript
Easy to use OpenID Connect client and server library written for Go and certified by the OpenID Foundation
Ncurses based XMPP client
- xmpp-client
- c
- xmpp
- chat
Database security suite. Database proxy with field-level encryption, search through encrypted data, SQL injections prevention, intrusion detection, honeypots. Supports client-side and proxy-side ("transparent") encryption. SQL, NoSQL.
- encryption-server
- encryption
- crypto
- cryptography
🛡️ Free open-source AI-powered security terminal & vulnerability scanner (CVE, SBOM). Supports SSH, SFTP, RDP, VNC, Serial, and 12+ autonomous AI agents (DeepSeek, OpenAI) for automated security workflows, CTF & DevSecOps. Cross-platform & Web UI.
- cve-scanner
- mcp-server
- mcp-tools
- osv