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security
502 matchesPortSwigger
Best-in-class software and learning for security engineers and penetration testers.
Securityweb-securitypenetration-testingvulnerability-scanningSnort
Network Intrusion Detection & Prevention System
Securityintrusion-detectionnetwork-securityopen-sourceWazuh
Unified XDR and SIEM protection for endpoints and cloud workloads.
Securityxdrsiemopen-sourceFail2Ban
Daemon to ban hosts that cause multiple authentication errors
Securitysecurityfirewallbrute-force-protectionOWASP Foundation
The Open Source Foundation for Application Security
Securityapplication-securityopen-sourceweb-securityOpenVAS
Full-featured open-source vulnerability scanner by Greenbone
Securityvulnerability-scanneropen-sourcenetwork-securityNmap
Free and open source network discovery and security auditing utility
Securitynetwork-scannerport-scanneropen-sourceKali Linux
The most advanced Penetration Testing Distribution
Securitypenetration-testingethical-hackinglinuxWireGuard
Fast, modern, secure VPN tunnel
SecurityvpnnetworkingcryptographyDefguard
Enterprise WireGuard VPN with built-in MFA and full sovereignty.
SecurityvpnwireguardmfastrongSwan
Open-source, modular and portable IPsec-based VPN solution
Securityvpnipsecopen-sourceNTPsec
A secure, hardened, and improved implementation of Network Time Protocol
Securityntpnetwork-time-protocolopen-sourceIPFire
More Than A Firewall
Securityfirewallopen-sourcenetwork-securityOPNsense
Open source, feature-rich firewall and routing platform for everyone.
Securityfirewallopen-sourcenetworkingpfSense
World's Most Trusted Open Source Firewall
Securityfirewallopen-sourcenetwork-securityWazuh
Unified XDR and SIEM protection for endpoints and cloud workloads.
Securityxdrsiemopen-sourcePomerium
Clientless, secure connections to your applications without a VPN
Securityzero-trustidentity-aware-proxyvpn-alternativeKeycloak
Open source identity and access management with single sign-on.
Securityidentity-managementsingle-sign-onoauthauthentik
Bring all of your authentication into a unified platform.
Securityidentity-providerauthenticationopen-sourceAuthelia
Free Open-Source Modern IAM Solution with OpenID Connect 1.0
Securityiamssoopenid-connectOpenLDAP
The Open Source for LDAP software and information
Securityldapdirectory-servicesidentity-managementFreeRADIUS
The world's leading RADIUS server — fast, feature-rich, modular, scalable.
SecurityradiusaaaauthenticationFreeIPA
Identity, Policy, Audit for Linux environments
Securityidentity-managementkerberosldapTahoe-LAFS
The Least-Authority File Store
Securitydistributed-storageopen-sourcefile-systemRudder
Own and automate your security posture
Securitysecurity-posturecompliancepatch-managementSmallstep
The world's first Device Identity Platform for Zero Trust security
Securityzero-trustcertificatesdevice-identitymitmproxy
A free and open source interactive HTTPS proxy
Securityproxyhttpsnetwork-interceptionResemble AI
Deepfakes are everywhere. So are we.
Securitydeepfake-detectionvoice-aiwatermarkingSlashLife AI
Replayable runtime evidence for AI-generated deployment and infrastructure actions.
Securityai-agentspolicy-enforcementdeployment-securityBeforeUpload
Check files locally before sharing them with AI
Securityprivacyfile-scanningpii-detectionMCPSafe
Free MCP server security scanner with AIVSS scoring and multi-LLM consensus
Securitymcpsecurity-scanningllmSysdig
Cloud Security Starts at Runtime
Securitycloud-securitycnappruntime-securityClyra Control
Map what AI coding workflows can change across your delivery environment.
Securityai-securityci-cddevexDNS Security Auditor
DNS and email security audit tool for DMARC, SPF, DKIM, and more
Securitydnsemail-securitydmarcmailenc
Does your encrypted email actually work?
Securitypgpemail-encryptionopenpgpArpokrat
Uncompromising Security. Absolute Privacy. Your Data Belongs to You.
Securityprivacypost-quantumhardened-androidLoxeAI
Machine-verifiable AWS audit evidence for SOC 2, every finding traced.
Securitysoc2awscomplianceSnatch Guard
Your apps lock instantly when your phone is snatched
Securityphone-securityanti-theftiosHoneyLabs
Open-source honeypot telemetry, query-ready.
Securityhoneypotthreat-intelligenceip-lookupCuratedMCP
MCP Governance for Claude Code, Cursor, Copilot, and Windsurf
Securitymcpgovernancedeveloper-securityCipherStash
Searchable field-level encryption and cryptographic access control for Postgres.
Securityencryptionpostgresaccess-controlSUPPLYCHAIN.FAIL
Weekly tracking of open-source vulnerability volume and critical supply chain alerts.
Securitysupply-chaincveopen-sourceSysdig
Cloud Security Starts at Runtime
Securitycloud-securitycnappruntime-securityFalco
Detect security threats in real time across cloud native environments
Securityruntime-securitycloud-nativekuberneteszauth
Security for the agentic internet.
Securityai-agentsvulnerability-scanningpentestingStackBob.ai
Agentic Identity Governance for any application, no API required
Securityidentity-governanceiamscimSpikerz
Protect your brand against social media hacks
Securitysocial-mediabrand-protectionhacking-preventionNemesis
Your security only works until it doesn't
Securitybreach-and-attack-simulationsecurity-validationpenetration-testingAsk Silver
Free scam checker for texts, emails, websites, and phone numbers
Securityscam-detectionfraud-preventionphishingAbove Security
AI agents for proactive insider risk management
Securityinsider-threatai-agentsuser-behavior-analytics
