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Protect systems, find vulnerabilities, and improve privacy.

Useful GitHub projects

2,781 projects

wBlock

0xCUB3

3,227stars+6in 24h
wBlock preview

Free, open-source Safari ad blocker for macOS, iOS, iPadOS and visionOS. Up to 750,000 rules, custom filter lists, userscripts and userstyles. No subscription.

SecuritySwiftGPL-3.0GitHub

awesome-ctf

apsdehal

11,990stars+6in 24h

A curated list of CTF frameworks, libraries, resources and softwares

SecurityJavaScriptCC0-1.0GitHub

artifact-keeper

artifact-keeper

1,279stars+6in 24h
artifact-keeper preview

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

  • 45+ Package Formats - Native protocol support for Maven, PyPI, NPM, Docker/OCI, Cargo, Go, Helm, and 38 more
  • WASM Plugin System - Extend with custom format handlers via WebAssembly (WIT-based, Wasmtime runtime)

RustScan

bee-san

20,703stars+6in 24h
RustScan preview

🤖 The Modern Port Scanner 🤖

  • Scans all 65k ports in 3 seconds.
  • Full scripting engine support. Automatically pipe results into Nmap, or use our scripts (or write your own) to do whatever you want.
SecurityRustGPL-3.0GitHub

bunkerweb

bunkerity

11,253stars+6in 24h
bunkerweb preview

🛡️ Open-source and cloud-native Web Application Firewall (WAF)

  • HTTPS support with transparent Let's Encrypt automation
  • State-of-the-art web security: HTTP security headers, prevent leaks, TLS hardening, ...
SecurityPythonAGPL-3.0GitHub

lynis

CISOfy

16,673stars+6in 24h

Lynis - Security auditing tool for Linux, macOS, and UNIX-based systems. Assists with compliance testing (HIPAA/ISO27001/PCI DSS) and system hardening. Agentless, and installation optional.

SecurityShellGPL-3.0GitHub

TorBot

DedSecInside

5,191stars+6in 24h
TorBot preview

Dark Web OSINT Tool

  • Onion Crawler (.onion)
  • Returns page title or host name if no page title is available and address with a short description of the site.

opensnitch

evilsocket

14,286stars+6in 24h
opensnitch preview

OpenSnitch is a GNU/Linux interactive application firewall inspired by Little Snitch.

  • Interactive outbound connections filtering.
  • Block ads, trackers or malware domains system wide.
SecurityPythonGPL-3.0GitHub

raptor

gadievron

4,001stars+6in 24h

Raptor turns Claude Code into a general-purpose AI offensive/defensive security agent. By using Claude.md and creating rules, sub-agents, and skills, and orchestrating security tool usage, we configure the agent for adversarial thinking, and perform research or attack/defense operations.

  • Take a codebase from first look to candidate fixes. Map its attack surface, investigate suspicious code, assess scanner findings, test exploitability, and generate PoCs and patches for review. Start with /agentic; use /understand or standalone /audit when you need a focused investigation.
  • Check what your software ships with. Inspect application dependencies, container packages, and workflow components; identify advisory and supply-chain risks, produce an SBOM, and plan fixes or upgrades with /sca.

hol-guard

hashgraph-online

1,095stars+6in 24h

Open-source antivirus and firewall for AI agents: block risky tools, secret access, prompt injection, malicious packages, MCP servers, plugins, and skills at runtime.

  • Manifest validation - Required fields, versions, declared paths, interface metadata, links, and assets.
  • Security - Hardcoded secrets, unsafe MCP commands and transports, and risky approval defaults.
SecurityRustApache-2.0GitHub

HeliBoard

HeliBorg

6,560stars+6in 24h
HeliBoard preview

Customizable and privacy-conscious open-source keyboard

  • Add dictionaries for suggestions and spell check
  • build your own, or get them here (quality may vary)
SecurityKotlinGPL-3.0GitHub

CVEngine

hevnsnt

711stars+6in 24h
CVEngine preview

AI-first external attack surface assessment with continuous discovery, evidence-based vulnerability validation, and developer-agent MCP integration.

SecurityPythonGPL-3.0GitHub

gosearch

ibnaleem

3,898stars+6in 24h
gosearch preview

🔍 Search anyone's digital footprint across 300+ websites

MyIP

jason5ng32

12,353stars+6in 24h
MyIP preview

The best IP Toolbox. Check your IP address & geolocation, test IP for WebRTC and DNS IP leaks, run an IP quality check, browser fingerprint check, website availability check, network speed test, global latency test, MTR test, Whois search, and more.

SecurityJavaScriptAGPL-3.0GitHub
382stars+6in 24h
opensidian preview

A privacy-first, open-source, markdown PKM tool with graphs, canvas and community plugins

SecurityJavaScriptGPL-3.0GitHub

kata-containers

kata-containers

9,125stars+6in 24h

Kata Containers is an open source project and community working to build a standard implementation of lightweight Virtual Machines (VMs) that feel and perform like containers, but provide the workload isolation and security advantages of VMs. https://katacontainers.io/

SecurityRustApache-2.0GitHub

voidaccess

KatrielMoses

1,055stars+6in 24h
voidaccess preview

Self-hosted dark web OSINT platform. Automated threat intelligence from query to graph in 13 steps. Free alternative to Recorded Future, DarkOwl, and Flare.

404StarLink

knownsec

11,511stars+6in 24h
404StarLink preview

404StarLink - 推荐优质、有意义、有趣、坚持维护的安全开源项目

ctf-skills

ljagiello

3,686stars+6in 24h

Agent skills for solving CTF challenges - web exploitation, binary pwn, crypto, reverse engineering, forensics, OSINT, and more

monero

monero-project

10,996stars+6in 24h

Monero: the secure, private, untraceable cryptocurrency

nanoclaw

nanocoai

31,110stars+6in 24h

A lightweight alternative to OpenClaw that runs in containers for security. Connects to WhatsApp, Telegram, Slack, Discord, Gmail and other messaging apps, has memory, scheduled jobs, and runs directly on Anthropic's Agents SDK

SecurityTypeScriptMITGitHub
6,877stars+6in 24h

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine developed by the OISF and the Suricata community.

opengrep

opengrep

3,323stars+6in 24h

🔎 Static code analysis engine to find security issues in code.

SecurityOCamlLGPL-2.1GitHub