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Security & Privacy
Security & Privacy open-source alternatives curated by the directory.
Security & Privacy
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64 of 64 tools
SAMA
GPL-3.0
Open source chat server with end-to-end encryption, clustering support, and comprehensive messaging features for building real-time communication apps
Cinny
AGPL-3.0
Cinny offers a simple, elegant, and secure interface for Matrix-based conversations, protected by end-to-end encryption.
Element
AGPL-3.0
Open-source platform for encrypted communication, file sharing, and collaboration based on the Matrix protocol.
Fluxer
AGPL-3.0
Free, open-source instant messaging and VoIP platform with full Markdown support, voice/video calls, moderation tools, and self-hosting options for communities.
Mattermost
Unknown
Mattermost provides a flexible, open-source platform for secure team collaboration, designed for organizations with strict security and privacy requirements.
Quiet
GPL-3.0
Quiet is a peer-to-peer messaging app that syncs messages directly between devices over Tor, with no central server, no phone number required, and no metadata leaks.
Stoat
Unknown
Self-hostable group chat with servers, channels, voice, and moderation tools. No ads, no data mining, built under EU privacy law.
Wire
GPL-3.0
A comprehensive collaboration platform offering end-to-end encrypted messaging, file sharing, and video calls with enterprise-grade security and compliance features.
Titan
Apache-2.0
Streamline role-based access control, enforce security policies, and ensure compliance for your Snowflake data warehouse
Ente
AGPL-3.0
End-to-end encrypted cloud storage for photos and videos, offering privacy, security, and seamless cross-device syncing.
GrowthBook
Unknown
Powerful, developer-friendly experimentation tool for data-driven product decisions. Seamless integration, real-time insights, and flexible deployment.
UnKey
AGPL-3.0
Streamline API authentication with UnKey's powerful, developer-friendly platform for creating, revoking, and monitoring API keys.
Unleash
AGPL-3.0
A powerful feature management platform enabling gradual rollouts, A/B testing, and seamless integration for continuous delivery.
Opengrep
LGPL-2.1
Opengrep is a community-driven fork of SemgrepCE, providing accessible static code analysis and security scanning for developers.
FeatBit
MIT
FeatBit is a fast, scalable feature flag service that enables risk mitigation and fosters business growth through controlled feature releases.
Flagsmith
BSD-3-Clause
Powerful feature management platform for seamless software releases, A/B testing, and personalized user experiences.
Temps
Apache-2.0
Self-hosted platform for small dev teams combining deployments, error tracking, analytics, session replay, uptime monitoring, and managed databases in one dashboard.
Bugsink
Unknown
Bugsink offers real-time error tracking with self-hosting capabilities, allowing easy installation and connection to any app using Sentry-compatible SDKs.
Highlight
Unknown
Comprehensive monitoring solution offering error tracking, session replay, and performance insights for seamless debugging and optimization.
HyperDX
MIT
Open source observability platform unifying session replays, logs, traces, metrics and errors. Fast search, automatic clustering, $0.40/GB pricing.
ProjectDiscovery
MIT
Monitor infrastructure for exploitable vulnerabilities with real-time detection, automated workflows, and zero false positives.
Sentry
Unknown
Detect, diagnose, and resolve software issues quickly with powerful error tracking, performance monitoring, and release management.
Peergos
AGPL-3.0
A peer-to-peer encrypted filesystem for secure file storage, sharing, and collaboration with end-to-end encryption and user-controlled data.
Defguard
Unknown
Enterprise-grade open source VPN solution combining WireGuard with mandatory 2FA/MFA and integrated OpenID Connect SSO for secure remote access