Top SCANNER GitHub Repositories & Tools (2026)

Free Windows, Mac and Linux cleaner, scanner, and more.

Mac Sai: the open-source Mac cleaner, optimizer, and malware scanner. A free, Apple-notarized alternative to CleanMyMac, built with Swift 6 and SwiftUI.

The ZAP by Checkmarx Core project

Vulnerability scanner written in Go which uses the data provided by https://osv.dev

Real-time intraday stock scanner for US equities with a browser dashboard you lay out yourself

Open-source universal artifact registry. Drop-in Artifactory/Nexus alternative with 40+ package formats, security scanning, WASM plugins, and edge replication.

Local Area Network discovery tool with an interactive Terminal User Interface (TUI) written in Go. Discover, explore, and understand your LAN in an intuitive way. Knock Knock.. who's there? 🚪

Nuclei is a fast, customizable vulnerability scanner powered by the global security community and built on a simple YAML-based DSL, enabling collaboration to tackle trending vulnerabilities on the internet. It helps you find vulnerabilities in your applications, APIs, networks, DNS, and cloud configurations.

A powerful open-source tool for managing networks and troubleshooting network problems!

Agent-less vulnerability scanner for Linux, FreeBSD, Container, WordPress, Programming language libraries, Network devices

Application Layer DoS attack simulator

AI-powered penetration testing assistant for automating recon, note-taking, and vulnerability analysis.

ZAP Add-ons

AMWScan (PHP Antimalware Scanner) is a free tool to scan php files and analyze your project to find any malicious code inside it.

ScanT3r - Module based Bug Bounty Automation Tool ( use Lotus instead github.com/bugBlocker/lotus )

The open source taint analysis engine for the AI era. A formal dataflow analysis tool you can customize and self-host, built so AI agents drive your application security analysis without burning tokens on every scan. AI-ready open source alternative to Semgrep Pro and CodeQL.

Native open-source network diagnostics app for macOS with built-in Wi-Fi analysis.

This repository contains the scanner component for Greenbone Community Edition.

🐛 Advanced web vulnerability scanner with 5-rule false-positive reduction, WAF evasion, and modern HTML reports

Program for determining types of files for Windows, Linux and MacOS.