Curated open-source alternatives to the software you already use.
Open-source identity and access management platform with multi-tenancy, OpenID Connect, SAML, and OAuth 2.0 support.
ReplacesAuth0
XSSHunter is an open-source platform designed to identify and exploit blind Cross-Site Scripting (XSS) vulnerabilities. It provides security researchers, bug bounty hunters, and penetration testers with a comprehensive toolkit for detecting XSS flaws that are otherwise difficult to discover through traditional testing methods.
ReplacesBurp Suite
WG-Easy is a simple and user-friendly WireGuard VPN server with a web interface for easy management.
ReplacesNordVPN
Web-Check is a powerful all-in-one website analyzer that provides detailed insights into any website's security, performance, and functionality.
Open SourcePrivacy
Vault is a tool for securely accessing secrets. A secret is anything that you want to tightly control access to, such as API keys, passwords, certificates, and more. Vault provides a unified interface to any secret, while providing tight access control and recording a detailed audit log. To sign in: In the Vault UI, select 'Token' as the authentication method (not GitHub), then enter the root token from the VAULT_DEV_ROOT_TOKEN_ID environment variable (auto-generated).
Replaces1Password
A Dockerized Tor Browser accessible via web VNC (noVNC) and VNC client.
Open SourcePrivacy
Open-source Auth0/Clerk alternative. Stack Auth is a free and open source authentication tool that allows you to authenticate your users.
ReplacesAuth0
Sable is a modern, high-performance DNS platform with recursive and authoritative DNS, blocking, DNSSEC, observability, clustering, and a polished web console.
ReplacesDatadog
RustDesk is a full-featured open source remote control alternative for self-hosting and security with minimal configuration.
ReplacesTeamViewer
A free and open-source BitTorrent client with web interface for remote management. Default login: admin (check container logs for temporary password on first startup).
ReplacesuTorrent
Pocket ID is a simple OpenID Connect and OAuth 2.0 provider that lets users authenticate to applications with passkeys.
ReplacesAuth0
Passbolt is an open source credential platform for modern teams. A versatile, battle-tested solution to manage and collaborate on passwords, accesses, and secrets. All in one.
ReplacesSlack
Share sensitive information securely with self-destructing links that are only viewable once.
Replaces1Password
Logto is an open-source Identity and Access Management (IAM) platform designed to streamline Customer Identity and Access Management (CIAM) and Workforce Identity Management.
ReplacesAuth0
Self-hosted software license server with customer management, device access controls, sessions, and usage metering through an HTTP API and CLI.
Open SourcePrivacy
A server to communicate with the FMD Android app, to locate and control your devices.
Open SourcePrivacy
DockTail exposes Docker containers as native Tailscale Services using labels, with no published ports and no per-container Tailscale devices.
ReplacesNordVPN
CyberChef is a web application for encryption, encoding, compression, and data analysis, developed by GCHQ.
Open SourcePrivacy
CrowdSec provides open source solution for detecting and blocking malicious IPs, safeguarding both infrastructure and application security.
Open SourcePrivacy
A lightweight daemon that securely connects local services to the internet through Cloudflare Tunnel.
Open SourcePrivacy
Checkcle is a security and compliance tool by Operacle, providing insights into system configuration and runtime checks.
ReplacesDatadog
CertMate is an SSL certificate management system with a web UI and REST API. It automates issuing and renewing Let's Encrypt certificates via DNS-01 challenges across 20+ DNS providers, with unified backups and multi-account support.
ReplacesPi-hole
An open-source UI-first Identity and Access Management (IAM) / Single-Sign-On (SSO) platform with web UI supporting OAuth 2.0, OIDC, SAML, CAS, LDAP, SCIM, WebAuthn, TOTP, MFA, and more.
ReplacesAuth0
Authorizer is a powerful tool designed to simplify the process of user authentication and authorization in your applications. It allows you to build secure apps 10x faster with its low code tool and low-cost deployment.
Open SourcePrivacy
Showing 24 of 31 apps
Stars from GitHub · Oct 5, 2026. Comparisons describe overlapping use cases, not feature parity.
