" Knowledge is powerful, be careful how you use it! " A collection of inspiring lists, manuals, cheatsheets, blogs, hacks, one-liners, cli/web tools, and more.
The Book of Secret Knowledge
Snapshot 2026-08-04 12:19:00 UTC · version 1
Research document
"Knowledge is powerful, be careful how you use it!"
A collection of inspiring lists, manuals, cheatsheets, blogs, hacks, one-liners, cli/web tools, and more.
:notebook_with_decorative_cover: What is it?
This repository is a collection of various materials and tools that I use every day in my work. It contains a lot of useful information gathered in one piece. It is an invaluable source of knowledge for me that I often look back on.
:restroom: For whom?
For everyone, really. Here everyone can find their favourite tastes. But to be perfectly honest, it is aimed towards System and Network administrators, DevOps, Pentesters, and Security Researchers.
:information_source: Contributing
If you find something which doesn't make sense, or something doesn't seem right, please make a pull request and please add valid and well-reasoned explanations about your changes or comments.
A few simple rules for this project:
- inviting and clear
- not tiring
- useful
These below rules may be better:
- easy to contribute to (Markdown + HTML ...)
- easy to find (simple TOC, maybe it's worth extending them?)
Url marked * is temporary unavailable. Please don't delete it without confirming that it has permanently expired.
Before adding a pull request, please see the contributing guidelines. You should also remember about this:
+ This repository is not meant to contain everything but only good quality stuff.
All suggestions/PR are welcome!
Code Contributors
This project exists thanks to all the people who contribute.
Financial Contributors
:newspaper: RSS Feed & Updates
GitHub exposes an RSS/Atom feed of the commits, which may also be useful if you want to be kept informed about all changes.
:ballot_box_with_check: ToDo
- Add new stuff...
- Add useful shell functions
- Add one-liners for collection tools (eg. CLI Tools)
- Sort order in lists
New items are also added on a regular basis.
:anger: Table of Contents
Only main chapters:
- CLI Tools
- GUI Tools
- Web Tools
- Systems/Services
- Networks
- Containers/Orchestration
- Manuals/Howtos/Tutorials
- Inspiring Lists
- Blogs/Podcasts/Videos
- Hacking/Penetration Testing
- Your daily knowledge and news
- Other Cheat Sheets
- Shell One-liners
- Shell Tricks
- Shell Functions
:trident: The Book of Secret Knowledge (Chapters)
CLI Tools [TOC]
:black_small_square: Shells
GNU Bash - is an sh-compatible shell that incorporates useful features from the Korn shell and C shell.
Zsh - is a shell designed for interactive use, although it is also a powerful scripting language.
tclsh - is a very powerful cross-platform shell, suitable for a huge range of uses.
bash-it - is a framework for using, developing and maintaining shell scripts and custom commands.
Oh My ZSH! - is the best framework for managing your Zsh configuration.
Oh My Fish - the Fishshell framework.
Starship - the cross-shell prompt written in Rust.
powerlevel10k - is a fast reimplementation of Powerlevel9k ZSH theme.
:black_small_square: Shell plugins
z - tracks the folder you use the most and allow you to jump, without having to type the whole path.
fzf - is a general-purpose command-line fuzzy finder.
zsh-autosuggestions - Fish-like autosuggestions for Zsh.
zsh-syntax-highlighting - Fish shell like syntax highlighting for Zsh.
Awesome ZSH Plugins - A list of frameworks, plugins, themes and tutorials for ZSH.
:black_small_square: Managers
Midnight Commander - is a visual file manager, licensed under GNU General Public License.
ranger - is a VIM-inspired filemanager for the console.
nnn - is a tiny, lightning fast, feature-packed file manager.
screen - is a full-screen window manager that multiplexes a physical terminal.
tmux - is a terminal multiplexer, lets you switch easily between several programs in one terminal.
tmux-cssh - is a tool to set comfortable and easy to use functionality tmux-sessions.
:black_small_square: Text editors
vi - is one of the most common text editors on Unix.
vim - is a highly configurable text editor.
emacs - is an extensible, customizable, free/libre text editor, and more.
micro - is a modern and intuitive terminal-based text editor.
neovim - is a free open source, powerful, extensible and usable code editor.
spacemacs - a community-driven Emacs distribution.
spacevim - a community-driven vim distribution.
:black_small_square: Files and directories
fd - is a simple, fast and user-friendly alternative to find.
ncdu - is an easy to use, fast disk usage analyzer.
:black_small_square: Network
PuTTY - is an SSH and telnet client, developed originally by Simon Tatham.
Mosh - is a SSH wrapper designed to keep a SSH session alive over a volatile connection.
Eternal Terminal - enables mouse-scrolling and tmux commands inside the SSH session.
nmap - is a free and open source (license) utility for network discovery and security auditing.
zmap - is a fast single packet network scanner designed for Internet-wide network surveys.
Rust Scan - to find all open ports faster than Nmap.
masscan - is the fastest Internet port scanner, spews SYN packets asynchronously.
pbscan - is a faster and more efficient stateless SYN scanner and banner grabber.
hping - is a command-line oriented TCP/IP packet assembler/analyzer.
mtr - is a tool that combines the functionality of the 'traceroute' and 'ping' programs in a single tool.
mylg - utility which combines the functions of the different network probes in one diagnostic tool.
netcat - utility which reads and writes data across network connections, using the TCP/IP protocol.
socat - utility which transfers data between two objects.
tcpdump - is a powerful command-line packet analyzer.
tshark - is a tool that allows us to dump and analyze network traffic (wireshark cli).
Termshark - is a simple terminal user-interface for tshark.
ngrep - is like GNU grep applied to the network layer.
netsniff-ng - is a Swiss army knife for your daily Linux network plumbing if you will.
sockdump - dump unix domain socket traffic.
stenographer - is a packet capture solution which aims to quickly spool all packets to disk.
tcpterm - visualize packets in TUI.
bmon - is a monitoring and debugging tool to capture networking related statistics and prepare them visually.
iptraf-ng - is a console-based network monitoring program for Linux that displays information about IP traffic.
vnstat - is a network traffic monitor for Linux and BSD.
iPerf3 - is a tool for active measurements of the maximum achievable bandwidth on IP networks.
ethr - is a Network Performance Measurement Tool for TCP, UDP & HTTP.
Etherate - is a Linux CLI based Ethernet and MPLS traffic testing tool.
echoip - is a IP address lookup service.
Nemesis - packet manipulation CLI tool; craft and inject packets of several protocols.
packetfu - a mid-level packet manipulation library for Ruby.
Scapy - packet manipulation library; forge, send, decode, capture packets of a wide number of protocols.
impacket - is a collection of Python classes for working with network protocols.
ssh-audit - is a tool for SSH server auditing.
aria2 - is a lightweight multi-protocol & multi-source command-line download utility.
iptables-tracer - observe the path of packets through the iptables chains.
inception - a highly configurable tool to check for whatever you like against any number of hosts.
mRemoteNG - a fork of mRemote, multi-tabbed PuTTy on steroids!
:black_small_square: Network (DNS)
dnsdiag - is a DNS diagnostics and performance measurement tools.
fierce - is a DNS reconnaissance tool for locating non-contiguous IP space.
subfinder - is a subdomain discovery tool that discovers valid subdomains for websites.
sublist3r - is a fast subdomains enumeration tool for penetration testers.
amass - is tool that obtains subdomain names by scraping data sources, crawling web archives, and more.
namebench - provides personalized DNS server recommendations based on your browsing history.
massdns - is a high-performance DNS stub resolver for bulk lookups and reconnaissance.
knock - is a tool to enumerate subdomains on a target domain through a wordlist.
dnsperf - DNS performance testing tools.
dnscrypt-proxy 2 - a flexible DNS proxy, with support for encrypted DNS protocols.
dnsdbq - API client providing access to passive DNS database systems.
grimd - fast dns proxy, built to black-hole internet advertisements and malware servers.
dnstwist - detect typosquatters, phishing attacks, fraud, and brand impersonation.
:black_small_square: Network (HTTP)
curl - is a command line tool and library for transferring data with URLs.
kurly - is an alternative to the widely popular curl program, written in Golang.
HTTPie - is an user-friendly HTTP client.
wuzz - is an interactive cli tool for HTTP inspection.
h2spec - is a conformance testing tool for HTTP/2 implementation.
h2t - is a simple tool to help sysadmins to hardening their websites.
htrace.sh - is a simple Swiss Army knife for http/https troubleshooting and profiling.
httpstat - is a tool that visualizes curl statistics in a way of beauty and clarity.
httplab - is an interactive web server.
Lynx - is a text browser for the World Wide Web.
Browsh - is a fully interactive, real-time, and modern text-based browser.
HeadlessBrowsers - a list of (almost) all headless web browsers in existence.
ab - is a single-threaded command line tool for measuring the performance of HTTP web servers.
siege - is an http load testing and benchmarking utility.
wrk - is a modern HTTP benchmarking tool capable of generating significant load.
wrk2 - is a constant throughput, correct latency recording variant of wrk.
vegeta - is a constant throughput, correct latency recording variant of wrk.
bombardier - is a fast cross-platform HTTP benchmarking tool written in Go.
gobench - http/https load testing and benchmarking tool.
hey - HTTP load generator, ApacheBench (ab) replacement, formerly known as rakyll/boom.
boom - is a script you can use to quickly smoke-test your web app deployment.
SlowHTTPTest - is a tool that simulates some Application Layer Denial of Service attacks by prolonging HTTP.
gobuster - is a free and open source directory/file & DNS busting tool written in Go.
ssllabs-scan - command-line reference-implementation client for SSL Labs APIs.
http-observatory - Mozilla HTTP Observatory cli version.
Hurl - is a command line tool to run and test HTTP requests with plain text.
:black_small_square: SSL
openssl - is a robust, commercial-grade, and full-featured toolkit for the TLS and SSL protocols.
gnutls-cli - client program to set up a TLS connection to some other computer.
sslyze
- fast and powerful SSL/TLS server scanning library.
sslscan - tests SSL/TLS enabled services to discover supported cipher suites.
testssl.sh - testing TLS/SSL encryption anywhere on any port.
cipherscan - a very simple way to find out which SSL ciphersuites are supported by a target.
spiped - is a utility for creating symmetrically encrypted and authenticated pipes between socket addresses.
Certbot - is EFF's tool to obtain certs from Let's Encrypt and (optionally) auto-enable HTTPS on your server.
mkcert - simple zero-config tool to make locally trusted development certificates with any names you'd like.
certstrap - tools to bootstrap CAs, certificate requests, and signed certificates.
Sublert - is a security and reconnaissance tool to automatically monitor new subdomains.
mkchain - open source tool to help you build a valid SSL certificate chain.
ssl-cert-check - SSL Certification Expiration Checker.
:black_small_square: Security
SELinux - provides a flexible Mandatory Access Control (MAC) system built into the Linux kernel.
AppArmor - proactively protects the operating system and applications from external or internal threats.
grapheneX - Automated System Hardening Framework.
DevSec Hardening Framework - Security + DevOps: Automatic Server Hardening.
:black_small_square: Auditing Tools
ossec - actively monitoring all aspects of system activity with file integrity monitoring.
auditd - provides a way to track security-relevant information on your system.
Tiger - is a security tool that can be use both as a security audit and intrusion detection system.
Lynis - battle-tested security tool for systems running Linux, macOS, or Unix-based operating system.
LinEnum - scripted Local Linux Enumeration & Privilege Escalation Checks.
Rkhunter - scanner tool for Linux systems that scans backdoors, rootkits and local exploits on your systems.
PE-sieve - is a light-weight tool that helps to detect malware running on the system.
PEASS - privilege escalation tools for Windows and Linux/Unix and MacOS.
:black_small_square: System Diagnostics/Debuggers
strace - diagnostic, debugging and instructional userspace utility for Linux.
DTrace - is a performance analysis and troubleshooting tool.
ltrace - is a library call tracer, used to trace calls made by programs to library functions.
ptrace-burrito - is a friendly wrapper around ptrace.
perf-tools - performance analysis tools based on Linux perf_events (aka perf) and ftrace.
bpftrace - high-level tracing language for Linux eBPF.
sysdig - system exploration and troubleshooting tool with first class support for containers.
Valgrind - is an instrumentation framework for building dynamic analysis tools.
gperftools - high-performance multi-threaded malloc() implementation, plus some performance analysis tools.
glances - cross-platform system monitoring tool written in Python.
htop - interactive text-mode process viewer for Unix systems. It aims to be a better 'top'.
bashtop - Linux resource monitor written in pure Bash.
nmon - a single executable for performance monitoring and data analysis.
atop - ASCII performance monitor. Includes statistics for CPU, memory, disk, swap, network, and processes.
lsof - displays in its output information about files that are opened by processes.
FlameGraph - stack trace visualizer.
lsofgraph - convert Unix lsof output to a graph showing FIFO and UNIX interprocess communication.
rr - is a lightweight tool for recording, replaying and debugging execution of applications.
Performance Co-Pilot - a system performance analysis toolkit.
hexyl - a command-line hex viewer.
Austin - Python frame stack sampler for CPython.
:black_small_square: Log Analyzers
angle-grinder - slice and dice log files on the command line.
lnav - log file navigator with search and automatic refresh.
GoAccess - real-time web log analyzer and interactive viewer that runs in a terminal.
ngxtop - real-time metrics for nginx server.
:black_small_square: Databases
usql - universal command-line interface for SQL databases.
pgcli - postgres CLI with autocompletion and syntax highlighting.
mycli - terminal client for MySQL with autocompletion and syntax highlighting.
litecli - SQLite CLI with autocompletion and syntax highlighting.
mssql-cli - SQL Server CLI with autocompletion and syntax highlighting.
OSQuery - is a SQL powered operating system instrumentation, monitoring, and analytics framework.
pgsync - sync data from one Postgres database to another.
iredis - a terminal client for redis with autocompletion and syntax highlighting.
SchemaCrawler - generates an E-R diagram of your database.
:black_small_square: TOR
Nipe - script to make Tor Network your default gateway.
multitor - a tool that lets you create multiple TOR instances with a load-balancing.
:black_small_square: Messengers/IRC Clients
Irssi - is a free open source terminal based IRC client.
WeeChat - is an extremely extensible and lightweight IRC client.
:black_small_square: Productivity
taskwarrior - task management system, todo list
:black_small_square: Other
sysadmin-util - tools for Linux/Unix sysadmins.
incron - is an inode-based filesystem notification technology.
lsyncd - synchronizes local directories with remote targets (Live Syncing Daemon).
GRV - is a terminal based interface for viewing Git repositories.
Tig - text-mode interface for Git.
tldr - simplified and community-driven man pages.
archiver - easily create and extract .zip, .tar, .tar.gz, .tar.bz2, .tar.xz, .tar.lz4, .tar.sz, and .rar.
commander.js - minimal CLI creator in JavaScript.
gron - make JSON greppable!
bed - binary editor written in Go.
GUI Tools [TOC]
:black_small_square: Terminal emulators
Guake - is a dropdown terminal made for the GNOME desktop environment.
Terminator - is based on GNOME Terminal, useful features for sysadmins and other users.
Kitty - is a GPU based terminal emulator that supports smooth scrolling and images.
Alacritty - is a fast, cross-platform, OpenGL terminal emulator.
:black_small_square: Network
Wireshark - is the world’s foremost and widely-used network protocol analyzer.
Ettercap - is a comprehensive network monitor tool.
EtherApe - is a graphical network monitoring solution.
Packet Sender - is a networking utility for packet generation and built-in UDP/TCP/SSL client and servers.
Ostinato - is a packet crafter and traffic generator.
JMeter™ - open source software to load test functional behavior and measure performance.
locust - scalable user load testing tool written in Python.
:black_small_square: Browsers
TOR Browser - protect your privacy and defend yourself against network surveillance and traffic analysis.
:black_small_square: Password Managers
KeePassXC - store your passwords safely and auto-type them into your everyday websites and apps.
Bitwarden - open source password manager with built-in sync.
Vaultwarden - unofficial Bitwarden compatible server written in Rust.
:black_small_square: Messengers/IRC Clients
HexChat - is an IRC client based on XChat.
Pidgin - is an easy to use and free chat client used by millions.
:black_small_square: Messengers (end-to-end encryption)
Signal - is an encrypted communications app.
Wire - secure messaging, file sharing, voice calls and video conferences.
TorChat - decentralized anonymous instant messenger on top of Tor Hidden Services.
Matrix - an open network for secure, decentralized, real-time communication.
:black_small_square: Text editors
Sublime Text - is a lightweight, cross-platform code editor known for its speed, ease of use.
Visual Studio Code - an open-source and free source code editor developed by Microsoft.
Atom - a hackable text editor for the 21st Century.
Web Tools [TOC]
:black_small_square: Browsers
SSL/TLS Capabilities of Your Browser - test your browser's SSL implementation.
Can I use - provides up-to-date browser support tables for support of front-end web technologies.
Panopticlick 3.0 - is your browser safe against tracking?
Privacy Analyzer - see what data is exposed from your browser.
Web Browser Security - it's all about Web Browser fingerprinting.
How's My SSL? - help a web server developer learn what real world TLS clients were capable of.
sslClientInfo - client test (incl TLSv1.3 information).
:black_small_square: SSL/Security
SSLLabs Server Test - performs a deep analysis of the configuration of any SSL web server.
SSLLabs Server Test (DEV) - performs a deep analysis of the configuration of any SSL web server.
ImmuniWeb® SSLScan - test SSL/TLS (PCI DSS, HIPAA and NIST).
SSL Check - scan your website for non-secure content.
SSL Scanner - analyze website security.
CryptCheck - test your TLS server configuration (e.g. ciphers).
urlscan.io - service to scan and analyse websites.
Report URI - monitoring security policies like CSP and HPKP.
CSP Evaluator - allows developers and security experts to check if a Content Security Policy.
Useless CSP - public list about CSP in some big players (might make them care a bit more).
Why No HTTPS? - top 100 websites by Alexa rank not automatically redirecting insecure requests.
TLS Cipher Suite Search- cipher suite search engine.
cipherli.st - strong ciphers for Apache, Nginx, Lighttpd, and more.*
dhtool - public Diffie-Hellman parameter service/tool.
badssl.com - memorable site for testing clients against bad SSL configs.
tlsfun.de - registered for various tests regarding the TLS/SSL protocol.
CAA Record Helper - generate a CAA policy.
Common CA Database - repository of information about CAs, and their root and intermediate certificates.
CERTSTREAM - real-time certificate transparency log update stream.
crt.sh - discovers certificates by continually monitoring all of the publicly known CT.
Hardenize - deploy the security standards.
Cipher suite compatibility - test TLS cipher suite compatibility.
urlvoid - this service helps you detect potentially malicious websites.
security.txt - a proposed standard (generator) which allows websites to define security policies.
ssl-config-generator - help you follow the Mozilla Server Side TLS configuration guidelines.
TLScan - pure python, SSL/TLS protocol and cipher scanner/enumerator.
:black_small_square: HTTP Headers & Web Linters
Security Headers - analyse the HTTP response headers (with rating system to the results).
Observatory by Mozilla - set of tools to analyze your website.
webhint - is a linting tool that will help you with your site's accessibility, speed, security, and more.
:black_small_square: DNS
ViewDNS - one source for free DNS related tools and information.
DNSLookup - is an advanced DNS lookup tool.
DNSlytics - online DNS investigation tool.
DNS Spy - monitor, validate and verify your DNS configurations.
Zonemaster - helps you to control how your DNS works.
Leaf DNS - comprehensive DNS tester.
Find subdomains online - find subdomains for security assessment penetration test.
DNSdumpster - dns recon & research, find & lookup dns records.
DNS Table online - search for DNS records by domain, IP, CIDR, ISP.
intoDNS - DNS and mail server health checker.
DNS Bajaj - check the delegation of your domain.
BuddyDNS Delegation LAB - check, trace and visualize delegation of your domain.
dnssec-debugger - DS or DNSKEY records validator.
PTRarchive.com - this site is responsible for the safekeeping of historical reverse DNS records.
xip.io - wildcard DNS for everyone.
nip.io - dead simple wildcard DNS for any IP Address.
dnslookup (ceipam) - one of the best DNS propagation checker (and not only).
What's My DNS - DNS propagation checking tool.
DNSGrep - quickly searching large DNS datasets.
:black_small_square: Mail
smtp-tls-checker - check an email domain for SMTP TLS support.
MX Toolbox - all of your MX record, DNS, blacklist and SMTP diagnostics in one integrated tool.
Secure Email - complete email test tools for email technicians.
blacklistalert - checks to see if your domain is on a Real Time Spam Blacklist.
MultiRBL - complete IP check for sending Mailservers.
DKIM SPF & Spam Assassin Validator - checks mail authentication and scores messages with Spam Assassin.
:black_small_square: Encoders/Decoders and Regex testing
URL Encode/Decode - tool from above to either encode or decode a string of text.
Uncoder - the online translator for search queries on log data.
Regex101 - online regex tester and debugger: PHP, PCRE, Python, Golang and JavaScript.
RegExr - online tool to learn, build, & test Regular Expressions (RegEx / RegExp).
RegEx Testing - online regex testing tool.
RegEx Pal - online regex testing tool + other tools.
The Cyber Swiss Army Knife - a web app for encryption, encoding, compression and data analysis.
:black_small_square: Net-tools
Netcraft - detailed report about the site, helping you to make informed choices about their integrity.*
RIPE NCC Atlas - a global, open, distributed Internet measurement platform.
Robtex - uses various sources to gather public information about IP numbers, domain names, host names, etc.
Security Trails - APIs for Security Companies, Researchers and Teams.
Online Curl - curl test, analyze HTTP Response Headers.
Online Tools for Developers - HTTP API tools, testers, encoders, converters, formatters, and other tools.
Ping.eu - online Ping, Traceroute, DNS lookup, WHOIS and others.
Network-Tools - network tools for webmasters, IT technicians & geeks.
BGPview - search for any ASN, IP, Prefix or Resource name.
Is BGP safe yet? - check BGP (RPKI) security of ISPs and other major Internet players.
Riseup - provides online communication tools for people and groups working on liberatory social change.
VirusTotal - analyze suspicious files and URLs to detect types of malware.
:black_small_square: Privacy
privacyguides.org - provides knowledge and tools to protect your privacy against global mass surveillance.
DNS Privacy Test Servers - DNS privacy recursive servers list (with a 'no logging' policy).
:black_small_square: Code parsers/playgrounds
ShellCheck - finds bugs in your shell scripts.
explainshell - get interactive help texts for shell commands.
jsbin - live pastebin for HTML, CSS & JavaScript, and more.
CodeSandbox - online code editor for web application development.
PHP Sandbox - test your PHP code with this code tester.
Repl.it - an instant IDE to learn, build, collaborate, and host all in one place.
vclFiddle - is an online tool for experimenting with the Varnish Cache VCL.
Haskell Dockerfile Linter - a smarter Dockerfile linter that helps you build best practice Docker images.
:black_small_square: Performance
GTmetrix - analyze your site’s speed and make it faster.
Sucuri loadtimetester - test here the
performance of any of your sites from across the globe.
Pingdom Tools - analyze your site’s speed around the world.
PingMe.io - run website latency tests across multiple geographic regions.
PageSpeed Insights - analyze your site’s speed and make it faster.
web.dev - helps developers like you learn and apply the web's modern capabilities to your own sites and apps.
Lighthouse - automated auditing, performance metrics, and best practices for the web.
:black_small_square: Mass scanners (search engines)
Censys - platform that helps information security practitioners discover, monitor, and analyze devices.
Shodan - the world's first search engine for Internet-connected devices.
Shodan 2000 - this tool looks for randomly generated data from Shodan.
GreyNoise - mass scanner such as Shodan and Censys.
ZoomEye - search engine for cyberspace that lets the user find specific network components.
netograph - tools to monitor and understand deep structure of the web.
FOFA - is a cyberspace search engine.
onyphe - is a search engine for open-source and cyber threat intelligence data collected.
IntelligenceX - is a search engine and data archive.
binaryedge - it scan the entire internet space and create real-time threat intelligence streams and reports.
Spyse - Internet assets registry: networks, threats, web objects, etc.
wigle - is a submission-based catalog of wireless networks. All the networks. Found by Everyone.
PublicWWW - find any alphanumeric snippet, signature or keyword in the web pages HTML, JS and CSS code.
IntelTechniques - this repository contains hundreds of online search utilities.
hunter - lets you find email addresses in seconds and connect with the people that matter for your business.
GhostProject? - search by full email address or username.
databreaches - was my email affected by data breach?
We Leak Info - world's fastest and largest data breach search engine.
Pulsedive - scans of malicious URLs, IPs, and domains, including port scans and web requests.
Buckets by Grayhatwarfar - database with public search for Open Amazon S3 Buckets and their contents.
Vigilante.pw - the breached database directory.
builtwith - find out what websites are built with.
NerdyData - search the web's source code for technologies, across millions of sites.
zorexeye - search for sites, images, apps, softwares & more.
Mamont's open FTP Index - if a target has an open FTP site with accessible content it will be listed here.
OSINT Framework - focused on gathering information from free tools or resources.
maltiverse - is a service oriented to cybersecurity analysts.
Leaked Source - is a collaboration of data found online in the form of a lookup.
We Leak Info - to help everyday individuals secure their online life, avoiding getting hacked.
pipl - is the place to find the person behind the email address, social username or phone number.
abuse.ch - is operated by a random swiss guy fighting malware for non-profit.
malc0de - malware search engine.
Cybercrime Tracker - monitors and tracks various malware families that are used to perpetrate cyber crimes.
shhgit - find GitHub secrets in real time.
searchcode - helping you find real world examples of functions, API's and libraries.
Insecam - the world biggest directory of online surveillance security cameras.
index-of - contains great stuff like: security, hacking, reverse engineering, cryptography, programming etc.
Rapid7 Labs Open Data - is a great resources of datasets from Project Sonar.
Common Response Headers - the largest database of HTTP response headers.
InQuest Labs - InQuest Labs is an open, interactive, and API driven data portal for security researchers.
:black_small_square: Generators
thispersondoesnotexist - generate fake faces in one click - endless possibilities.
AI Generated Photos - 100.000 AI generated faces.
fakenamegenerator - your randomly generated identity.
Intigriti Redirector - open redirect/SSRF payload generator.
:black_small_square: Passwords
have i been pwned? - check if you have an account that has been compromised in a data breach.
dehashed - is a hacked database search engine.
Leaked Source - is a collaboration of data found online in the form of a lookup.
:black_small_square: CVE/Exploits databases
CVE Mitre - list of publicly known cybersecurity vulnerabilities.
CVE Details - CVE security vulnerability advanced database.
Exploit DB - CVE compliant archive of public exploits and corresponding vulnerable software.
0day.today - exploits market provides you the possibility to buy/sell zero-day exploits.
sploitus - the exploit and tools database.
cxsecurity - free vulnerability database.
Vulncode-DB - is a database for vulnerabilities and their corresponding source code if available.
cveapi - free API for CVE data.
:black_small_square: Mobile apps scanners
ImmuniWeb® Mobile App Scanner - test security and privacy of mobile apps (iOS & Android).
Quixxi - free Mobile App Vulnerability Scanner for Android & iOS.
Ostorlab - analyzes mobile application to identify vulnerabilities and potential weaknesses.
:black_small_square: Private Search Engines
Startpage - the world's most private search engine.
searX - a privacy-respecting, hackable metasearch engine.
darksearch - the 1st real Dark Web search engine.
Qwant - the search engine that respects your privacy.
DuckDuckGo - the search engine that doesn't track you.
Swisscows - privacy safe web search
Disconnect - the search engine that anonymizes your searches.
MetaGer - the search engine that uses anonymous proxy and hidden Tor branches.
:black_small_square: Secure Webmail Providers
CounterMail - online email service, designed to provide maximum security and privacy.
Mail2Tor - is a Tor Hidden Service that allows anyone to send and receive emails anonymously.
Tutanota - is the world's most secure email service and amazingly easy to use.
Protonmail - is the world's largest secure email service, developed by CERN and MIT scientists.
Startmail - private & encrypted email made easy.
:black_small_square: Crypto
Keybase - it's open source and powered by public-key cryptography.
This HTML preview is truncated for page performance. The canonical Markdown file contains the complete snapshot.
Why MDRSS assigned this score
- Imported from the supplied mdrss-final-2026-08-04 content base.
- Source URL is recorded as provenance.
- Agent usefulness score: 84/100.
Discussion 0
Sign in to join the discussion.