OWASP ZAPSecurity & PrivacyOpen-source web application security scannerGH15.2KGitHub starsViews34viewsOpen SourceSecurityOpen Source
CyberChefSecurity & PrivacyThe Cyber Swiss Army KnifeGH35KGitHub starsViews33viewsFreeOpen SourceSecurityOpen Source
trivySecurity & PrivacyA Simple and Comprehensive Vulnerability Scanner for Containers and other Artifacts, Suitable for CI. Trivy detects vulnerabilities of OS packages (Alpine, RHEL, CentOS, etc.) and application dependenGH36.1KGitHub starsViews33viewsOpen Source
Have I Been PwnedSecurity & PrivacyCheck if your data has been breachedViews29viewsClicks2clicksFreeSecurity
JoplinSecurity & PrivacyNote taking application with markdown editor and encryption support for mobile and desktop platforms. Runs client-side and syncs through a self hosted Nextcloud instance or similar (alternative to EveViews24viewsClicks1clicksFree
GrypeSecurity & PrivacyVulnerability scanner for container images and filesystems. Developed by Anchore, it scans container images, directories, and archives for known vulnerabilities. Supports multiple image formats, SBOM GH12.3KGitHub starsViews23viewsOpen Source
SnykSecurity & PrivacyDeveloper security for code and dependenciesViews21viewsClicks1clicksFreemiumSecurityDevOps
Let's EncryptSecurity & PrivacyFree SSL/TLS certificatesViews20viewsClicks1clicksFreeOpen SourceSecurityOpen Source
Your OpenSSL CSR command is out of dateSecurity & PrivacyYour OpenSSL CSR command is out of dateViews20viewsClicks1clicksFree
CloudflareSecurity & PrivacyWeb security and performanceViews20viewsClicks1clicksFreemiumSecurityHosting
ThreatMapperSecurity & PrivacyVulnerability Scanner and Risk Evaluation for containers, serverless and hosts at runtime. ThreatMapper generates runtime BOMs from dependencies and operating system packages, matches against multipleGH5.3KGitHub starsViews20viewsOpen Source
Generate a multi domains certificate using config filesSecurity & PrivacyGenerate a multi domains certificate using config filesViews20viewsClicks2clicksOpen Source
KuvaszUptimeSecurity & PrivacyPerformant, stable uptime & SSL monitoring service with brandable status pages, IAC support, Prometheus integration and a complete REST API. ([Demo](https://kuvasz-uptime.dev/demo/), [Source Code](httViews20viewsClicks1clicksFree
OpenSSL example configuration fileSecurity & PrivacyOpenSSL example configuration fileViews20viewsClicks1clicksFree
How to create multidomain certificates using config filesSecurity & PrivacyHow to create multidomain certificates using config filesViews19viewsClicks1clicksFree
OPNsenseSecurity & PrivacyAn open source FreeBSD-based firewall and router with traffic shaping, load balancing, and virtual private network capabilities. ([Source Code](https://github.com/opnsense)) BSD-2-Clause C/PHPViews19viewsClicks1clicksFree
Auth0Security & PrivacyIdentity and access managementViews19viewsClicks2clicksFreemiumSecurityAPI Client
etcdSecurity & PrivacyDistributed K/V-Store, authenticating via SSL PKI and a REST HTTP Api for shared configuration and service discovery. ([Source Code](https://github.com/etcd-io/etcd)) Apache-2.0 GoViews18viewsClicks1clicksFree
SnortSecurity & PrivacySnort is a free and open source network intrusion prevention system (NIPS) and network intrusion detection system (NIDS) created by Martin Roesch in 1998.Views18viewsClicks1clicksFree
SafetySecurity & PrivacyPython dependency vulnerability scanner designed to enhance software supply chain security by detecting packages with known vulnerabilities. Checks Python dependencies against a database of known secuViews18viewsClicks2clicksFree
TeleportSecurity & PrivacyCertificate authority and access plane for SSH, Kubernetes, web applications, and databases. ([Source Code](https://github.com/gravitational/teleport)) Apache-2.0 Go/Docker/K8SViews18viewsClicks1clicksFree
Zero-TOTPSecurity & PrivacyComplete, reliable, secure and zero-trust webapp based on zero-knowledge encryption to store your TOTP codes. ([Source Code](https://github.com/SeaweedbrainCY/zero-totp)) GPL-3.0 DockerViews18viewsClicks2clicksFree
brakemanSecurity & PrivacyA static analysis security vulnerability scanner for Ruby on Rails applications.Views18viewsClicks2clicksFree
BunkerWebSecurity & PrivacyNext-gen Web Application Firewall (WAF) that will protect your web services. ([Demo](https://demo.bunkerweb.io), [Source Code](https://github.com/bunkerity/bunkerweb), [Clients](https://docs.bunkerwebViews18viewsClicks1clicksFree
VulsSecurity & PrivacyAgent-less Linux vulnerability scanner based on information from NVD, OVAL, etc. It has some container image support, although is not a container specific tool.Views18viewsClicks1clicksFree
IPFireSecurity & PrivacyFree network firewall distribution, based on the Linux operating system with easy-to-use web management console. ([Source Code](https://git.ipfire.org/?p=ipfire-2.x.git;a=summary)) GPL-2.0 Shell/PHP/OViews18viewsClicks1clicksFree
certificate-ripperSecurity & PrivacyExtract server certificates.GH911GitHub starsViews18viewsOpen Source
otsSecurity & PrivacyShare secrets with others via a one-time URL.GH1.8KGitHub starsViews18viewsOpen Source
VulertSecurity & PrivacyDependency vulnerability monitoring service for open-source packages.Views18viewsClicks1clicksFree
UUSEC WAFSecurity & PrivacyIndustry-leading high-performance, AI and semantic technology web application firewall and API security gateway (fork of nginx). ([Source Code](https://github.com/Safe3/uusec-waf)) GPL-3.0 C/Lua/DockeViews17viewsClicks3clicksFree
AnubisSecurity & PrivacyWeb AI firewall utility which protects upstream resources from scraper bots. ([Source Code](https://github.com/TecharoHQ/anubis)) MIT Docker/deb/GoViews17viewsClicks1clicksFree
OpenVPNSecurity & PrivacyUses a custom security protocol that utilizes SSL/TLS for key exchange.Views17viewsClicks3clicksFree
fwknopSecurity & PrivacyProtects ports via Single Packet Authorization in your firewall.Views17viewsClicks1clicksFree
FreeIPASecurity & PrivacyIntegrated security information management solution combining Linux (Fedora), 389 Directory Server, Kerberos, NTP, DNS, and Dogtag Certificate System (web interface and command-line administration tooViews17viewsClicks1clicksFree
Tsunami Security ScannerSecurity & PrivacyA general purpose network security scanner with an extensible plugin system for detecting high severity RCE-like vulnerabilities with high confidence. Custom detectors for finding vulnerabilities (e.GH8.6KGitHub starsViews17viewsOpen Source
CorgeaSecurity & Privacycopyright: — Corgea is an AI-powered SAST scanner that helps developers find and fix insecure code. It finds business logic flaws, broken authentication, API vulnerabilities, and more with little falViews17viewsClicks1clicksFree
PassItSecurity & PrivacySimple password manage with sharing features by group and user, but no administration interface. ([Demo](https://app.passit.io/), [Source Code](https://gitlab.com/passit)) AGPL-3.0 Docker/PythonViews16viewsClicks1clicksFree
MMixCertificateSecurity & PrivacyCreate, send, and manage certificates in minutesPH11Product Hunt votesViews16viewsFreemium
ParaSecurity & PrivacyFlexible and modular backend framework/server for object persistence, API development and authentication. ([Source Code](https://github.com/erudika/para)) Apache-2.0 Java/DockerViews16viewsClicks2clicksFree
SharrySecurity & PrivacyShare files easily over the internet between authenticated and anonymous users (both ways) with resumable up- and downloads. GPL-3.0 Scala/Java/deb/DockerGH1.3KGitHub starsViews16viewsOpen Source
andcliSecurity & PrivacyWork with 2FA tokens from multiple OTP providers.GH141GitHub starsViews16viewsOpen Source
2FAuthSecurity & PrivacyManage your Two-Factor Authentication (2FA) accounts and generate their security codes. ([Demo](https://demo.2fauth.app/)) AGPL-3.0 PHP/DockerGH4KGitHub starsViews16viewsOpen Source
dawnscannerSecurity & PrivacyA static analysis security scanner for ruby written web applications. It supports Sinatra, Padrino and Ruby on Rails frameworks.GH749GitHub starsViews16viewsOpen Source
AutheliaSecurity & PrivacyThe Single Sign-On Multi-Factor portal for web apps. ([Source Code](https://github.com/authelia/authelia)) Apache-2.0 GoViews15viewsClicks2clicksFree
Mana SecuritySecurity & Privacyvulnerability management app for individuals. [![Open-Source Software][OSS Icon]](https://github.com/manasecurity/mana-security-app)Views15viewsClicks1clicksFree
ZITADELSecurity & PrivacyCloud-native Identity & Access Management solution providing a platform for secure authentication, authorization and identity management. ([Source Code](https://github.com/zitadel/zitadel)) Apache-2.0Views15viewsClicks1clicksFree
DeadboltSecurity & PrivacyOpen-source file encryption tool. [![Open-Source Software][OSS Icon]](https://github.com/alichtman/deadbolt) ![Freeware][Freeware Icon]GH415GitHub starsViews15viewsOpen Source
Infisical Community EditionSecurity & PrivacyPlatform for secrets, certificates, and privileged access management. ([Source Code](https://github.com/Infisical/infisical)) MIT Docker/K8S/debViews15viewsClicks1clicksFree
NextDNSSecurity & PrivacyThe new firewall for the modern Internet. ![Freeware][Freeware Icon] [![App Store][app-store Icon]](https://apps.apple.com/us/app/nextdns/id1464122853?platform=mac)Views15viewsClicks1clicksFree
Antivirus OneSecurity & PrivacySecurity scanner for malware, adware, and web threats. ![Freeware][Freeware Icon] [![App Store][app-store Icon]](https://apps.apple.com/app/apple-store/id1068435535?pt=444218&ct=GitHub&mt=8&platform=mViews15viewsClicks1clicksFree
PureSnitchSecurity & PrivacyOpen-source application firewall with a Little Snitch-style world map, rule manager, DNS over HTTPS, and pf-based blocking, with no telemetry. [![Open-Source Software][OSS Icon]](https://github.com/moGH19GitHub starsViews14viewsOpen Source
LuLuSecurity & PrivacyLuLu is the free macOS firewall that aims to block unauthorized (outgoing) network traffic. [![Open-Source Software][OSS Icon]](https://github.com/objective-see/LuLu) [![Open-Source Software][OSS IconViews14viewsClicks1clicksFree
AuthentikSecurity & PrivacyFlexible identity provider with support for different protocols. (OAuth 2.0, SAML, LDAP and Radius). ([Source Code](https://github.com/goauthentik/authentik)) MIT PythonViews14viewsClicks1clicksFree
WatcharrSecurity & PrivacyAdd and track all the shows and movies you are watching. Comes with user authentication, modern and clean UI and a very simple setup. ([Demo](https://beta.watcharr.app/)) MIT DockerGH1.4KGitHub starsViews14viewsOpen Source