Security & Privacy
40 self-hosted open source alternatives in this category
40 self-hosted open source alternatives in this category
40 services found

Modern web server with automatic HTTPS
Fast, extensible web server and reverse proxy with automatic TLS certificates, simple configuration, HTTP/3 support, and production-ready observability features.

Cloud-native reverse proxy and load balancer
Traefik is a dynamic reverse proxy and load balancer for Docker, Kubernetes, and microservices with automatic service discovery, routing, and TLS/ACME support.

Network-wide ad blocking via DNS sinkhole
DNS sinkhole that blocks ads, trackers, and malicious domains network-wide with a web dashboard, per-client controls, and optional DHCP/DNS features.

Unofficial Bitwarden-compatible server written in Rust
Lightweight, self-hosted Bitwarden-compatible password manager server with web vault, clients support, orgs, sharing, attachments, and optional admin interface.

Secure team messaging for technical and operational teams
Self-hostable team chat with channels, threads, calls, integrations, and enterprise-grade security controls for organizations that need full data control.


The Cyber Swiss Army Knife for data analysis and decoding
Browser-based tool for decoding, encoding, encryption, and data analysis using a drag-and-drop “recipe” workflow for security, DFIR, and engineering tasks.

Network-wide ads and tracker blocking via DNS
Self-hosted DNS server with ad/tracker blocking, custom filtering, parental controls, encrypted DNS, and per-client statistics for home networks.

Web UI for Nginx reverse proxy with Let's Encrypt SSL
Web-based reverse proxy manager for Nginx with hosts, streams, access lists, and automatic Let's Encrypt certificates via an easy admin UI.

Self-hosted WAF for protecting web apps and APIs
SafeLine is an open-source web application firewall (WAF) that protects web apps and APIs from common attacks using HTTP traffic inspection, rules, and management UI.


Identity-native infrastructure access for SSH, Kubernetes, RDP and DBs
Open-source platform that provides unified, audited, identity-based access to servers, Kubernetes clusters, databases, and desktops without static credentials.

Open-source password manager for individuals and teams
Self-hostable password manager with end-to-end encryption, vault sharing, TOTP, passkeys, and cross-platform apps plus browser extensions.


Self-hosted secure tunneling and access gateway
Pangolin provides a self-hosted access gateway for securely exposing internal apps via tunnels, with identity-aware access controls and a web UI.


Open-source document signing and workflow platform
Self-hosted platform for preparing, sending, and tracking legally binding e-signatures with templates, audit trails, and team workflows.


Secure, multi-protocol file transfer server with a web admin UI
Self-hosted SFTP/FTP/WebDAV server with web admin, virtual users, storage backends, and auditing for secure file exchange and managed file transfer workflows.


All-in-one secure mail server with modern spam filtering
Stalwart is an all-in-one mail server (SMTP/IMAP/JMAP) with built-in anti-spam/DMARC, web admin UI, and flexible routing for running your own email infrastructure.

Private messaging without user IDs or phone numbers
Privacy-first messenger using SimpleX relays and end-to-end encryption, designed to avoid user identifiers, phone numbers, and centralized identity.


Web application firewall and security reverse proxy
Self-hosted WAF and reverse proxy built on NGINX, with a web UI, ModSecurity/OWASP rules, automatic HTTPS, and hardened defaults for securing web apps.


Web-based SSH terminal and host management workspace
Self-hosted web app for managing SSH connections, organizing hosts, and accessing terminals from a browser with a focus on team-friendly workflows.

Zero-knowledge pastebin with end-to-end encryption
Self-hosted, zero-knowledge pastebin that encrypts text in the browser, supports file attachments, expiration, burn-after-reading, and discussion threads.

Authoritative, recursive DNS with web UI and ad blocking
Self-hosted DNS server with recursive resolver, authoritative zones, DoH/DoT, ad-blocking, DHCP, and a web UI with optional app-based extensibility.

Personal cloud to run web apps securely, per-user sandboxed
Self-hosted platform for running web apps with per-user sandboxes, easy install, app store packaging, and sharing via secure links and access controls.


Email aliasing to protect your real inbox
Self-hostable email alias manager that generates aliases, forwards mail, and shields your real address with reply support, custom domains, and anti-tracking options.


Smart SSH bastion with web UI, RBAC, and audit logs
Self-hosted SSH bastion and access gateway with web UI, RBAC, just-in-time access, session recording, and audit logging for servers and infrastructure.

High-performance TCP/HTTP load balancer and reverse proxy
HAProxy is a fast, reliable load balancer and reverse proxy for TCP/HTTP(S), with TLS termination, health checks, advanced routing, and built-in observability features.

Open-source remote device management and remote access server
Web-based remote management server for computers and IoT devices with remote desktop/terminal, file transfer, user/device groups, and auditing.


Fast DNS proxy with ad-blocking and safe browsing
Lightweight DNS proxy and local DNS server with blocklists, allowlists, custom DNS rules, caching, and optional DoH/DoT upstream for network-wide ad and tracker blocking.

Open-source password manager for teams
Self-hosted, GPG-based password manager for teams with shared vaults, RBAC, auditing, and browser extensions for secure credential sharing.


Lightweight reverse proxy with a web UI and built-in tools
Self-hosted reverse proxy and HTTP(S) gateway with a web UI, TLS support, routing rules, and traffic/security utilities for homelabs and small servers.


Open-source content collaboration and file sharing platform
Enterprise-ready file sharing and content collaboration with sync, sharing, and integrations, built as a modern successor to ownCloud/Nextcloud-style platforms.

Open-source email aliases and forwarding for privacy.
Create unlimited email aliases and forward mail to your inbox to reduce spam, protect identity, and control who can reach you.