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Protect systems, find vulnerabilities, and improve privacy.

Useful GitHub projects

2,879 projects

quiet

TryQuiet

2,663stars
quiet preview

A private, p2p alternative to Slack and Discord built on Tor & IPFS

  • Team Chat - Create a "community" for your team or organization and invite members.
  • End-to-end Encryption - All data is encrypted end-to-end between member devices.
SecurityTypeScriptGPL-3.0GitHub

post-peek

tsvb

57stars
post-peek preview

Read one post and leave. Chrome and Firefox extension that opens X and Bluesky post links in a popup, not the full site. No account, no cookies sent to either.

  • Opens post links in a popup so you can read just that post and close it.
  • Marks openable links with a small blue dot.
SecurityJavaScriptMITGitHub

rawsec_cli

tyki6

29stars
rawsec_cli preview

Rawsec's Cybersecurity Inventory cli. Search pentesting tools, resources, ctf, os.

  • search a project
  • list Tools, Resources, Ctf Platforms, OS
SecurityPythonMITGitHub

secure

TypeError

1,073stars
secure preview

Modern Python library for HTTP security headers with safe defaults, configurable presets, and first-class ASGI/WSGI middleware (FastAPI, Django, Flask, Shiny, and more).

  • Keep one Secure policy object instead of scattered header strings
  • Apply the same policy through ASGI middleware, WSGI middleware, or response hooks
SecurityPythonMITGitHub

metta

uber-common

1,148stars
metta preview

An information security preparedness tool to do adversarial simulation.

SecurityPythonMITGitHub

poc-lab

Unclecheng-li

829stars

Recent CVE PoC & reproduction scripts. Focused on high-severity vulnerabilities across Linux kernel, Windows, macOS and more.

SecurityCMITGitHub

privacy.sexy

undergroundwires

6,179stars
privacy.sexy preview

Open-source tool to enforce privacy & security best-practices on Windows, macOS and Linux, because privacy is sexy

  • Rich: Hundreds of scripts that aims to give you control of your data.
  • Free: Both free as in "beer" and free as in "speech".
SecurityTypeScriptAGPL-3.0GitHub

nix-secrets

unnamed-systems

58stars

A postmodern secrets manager for NixOS [maintainer=@BANanaD3V,@yunfachi]

SecurityNixEUPL-1.2GitHub

secure

unrolled

2,359stars

HTTP middleware for Go that facilitates some quick security wins.

SecurityGoMITGitHub

contrastapi

UPinar

37stars
contrastapi preview

MCP server with 55 security intelligence tools — CVE/KEV, MITRE ATLAS+D3FEND, Sigma detection rules, email security posture (SPF/DMARC), domain & web intel, threat intel.

SecurityPythonMITGitHub

Urik

urikdev

415stars
Urik preview

Privacy-focused Android keyboard with swipe typing, custom layouts, and password manager support. No tracking, 100% on-device, and fully open source.

  • Swipe typing with geometric path matching and vertex detection
  • One-handed and split modes with coordinate transformation
SecurityKotlinGPL-3.0GitHub

usbguard

USBGuard

1,401stars

USBGuard is a software framework for implementing USB device authorization policies (what kind of USB devices are authorized) as well as method of use policies (how a USB device may interact with the system)

SecurityC++GPL-2.0GitHub

Skills

UseOSINT

62stars

28 OSINT Agent Skills that turn Cursor, Claude & AI coding agents into a full open-source intelligence platform — reconnaissance, attribution, GEOINT, breach checks & due diligence. Ethical, sourced, passive-first.

SecurityShellMITGitHub

WiFi-Nightmare

UserJoo9

73stars

WiFi-Nightmare: Hybrid WiFi Auditor. Python CLI Control | ESP32/ESP8266 Hardware Acceleration | Evil Twin | Handshake Capture | Deauth

  • Recon & Handshakes: 2.4 GHz & 5 GHz scanning, WPA/WPA2/WPA3 4-way handshake capture, and clientless PMKID harvesting.
  • Eviction & Deauth: Targeted and broadcast deauth flooding, CSA (Channel Switch Announcement), and BTM (802.11v) frames to bypass 802.11w PMF.
SecurityPythonMITGitHub

wholeaked

utkusen

1,103stars
wholeaked preview

a file-sharing tool that allows you to find the responsible person in case of a leakage

SecurityGoBSD-3-ClauseGitHub

UTMStack

utmstack

592stars
UTMStack preview

Enterprise-ready SIEM, SOAR and Compliance powered by real-time correlation and threat intelligence.

  • Log Management and Correlation
  • Threat Detection and Response
SecurityTypeScriptAGPL-3.0GitHub

sx

v-byte-cpu

1,566stars

:vulcan_salute: Fast, modern, easy-to-use network scanner

  • ⚡ 30x times faster than nmap
  • ARP, NDP, and multicast ICMPv6 scans: Discover IPv4 and IPv6 neighbors on local networks
SecurityGoMITGitHub

bitchat-tui

vaibhav-mattoo

381stars

🔒 Secure, anonymous, peer-to-peer (P2P) Bluetooth chat in your terminal. An off-grid, encrypted TUI messenger built with Rust.

  • Modern TUI Interface: Clean, responsive terminal interface built with Ratatui for an intuitive user experience
  • BitChat Protocol Support: Full implementation of the BitChat messaging protocol with all features
SecurityRustMITGitHub