GIMP

The Free & Open Source Image Editor

HxD

Fast hex editor which, additionally to raw disk editing and modifying of main memory (RAM), handles files of any size

VS Code

This is properly one of the most advanced editors out there today with great OS support and customization

Audacity

Audio editor for Windows, Mac or Linux

Ffmpeg

A complete, cross-platform solution to analyse, record, convert and stream audio and video

Grep

Print lines that match patterns

File

Attempt to classify any file

V0lt

(outdated) Security CTF, Python style. Making CFT scripting easy in python

Dvcs-ripper

Rip web accessible (distributed) version control systems: SVN, GIT, Mercurial/hg, bzr etc.

ResourcesExtract

Small utility that scans dll/ocx/exe files and extract all resources (bitmaps, icons, cursors, AVI movies, HTML files, and more...)

Imagemagick

Create, edit, compose, or convert digital image

Postman

Postman is an API platform for building, testing and using APIs

Ghidra

A software reverse engineering (SRE) suite of tools developed by NSA's Research Directorate in support of the Cybersecurity mission

Assetnote

Wordlists that are up to date and effective against the most popular technologies on the internet

Skullsecurity

Password dictionaries and Leaked passwords

Hunter.io

Email enumeration tool

Haveibeenpwned

Useful for breach enumeraton

Jsnice

Online tool to make even obfuscated JavaScript code readable

Searchcode

Find real life code examples

GNU Radio

GNU Radio is a free & open-source software development toolkit that provides signal processing blocks to implement software radios. (HackRF, BladeRF, USRP, RTL-SDR)

WL Compendium

WordList-Compendium - Personal compilation of wordlists & dictionaries for everything. Users, passwords, directories, files, vulnerabilities, fuzzing, injections, wordlists of tools, etc.

Recon-cheatsheet

A okay nice cheatsheet for doing recon, found on DEF CON - 9221 twitter now hosted locally for keepsake :)

GHDB

Google Hacking Database (GHDB) is a compendium of Google hacking search terms that have been found to reveal sensitive data exposed by vulnerable servers and web applications

Exploit-db

Exploit Database is a CVE compliant archive of public exploits and corresponding vulnerable software

Gps-sdr-sim

Software-Defined GPS Signal Simulator

Mitre - Groups

Groups are mapped to publicly reported technique use and original references are included. The information provided does not represent all possible technique use by Groups.

Mitre - Software

Software is a generic term for custom or commercial code, operating system utilities, open-source software, or other tools used to conduct behavior modeled in attacks

Mitre - D3fend

A knowledge graph of cybersecurity countermeasures

CTFCrackTools

China's first CTFTools framework (Use at your own risk hahah)

Security-tools

Collection of small security tools, mostly in Bash and Python. CTFs, Bug Bounty and other stuff

EML Header Analyzer

E-Mail (EML) Header Analyzer can analyze e-mail header lines and print out the Received lines separately and clearly

Text Converter

Text Converter converts text to other encodings or other formats. Supported formats include Base64, Quoted-Printable, URL encoding, HTML encoding, various types of text conversion and formatting, as well as hash calculations

PHP Obfuscator

Ever needed to obfuscate your php code to either compress it or hide it etc. This is a good online site for that.

ASCII ANSI Table

ASCII (American Standard Code for Information Interchange) is a 7-bit character set that contains characters from 0 to 127

Unicode Table

Unicode, formally the Unicode Standard, is an information technology standard for the consistent encoding, representation, and handling of text expressed in most of the world's writing systems

Rapidtables

RapidTables contains quick reference information and tools from conversion tables to calculations to text, web, electronic conversion tables. Very useful

W3m <3

apt install w3m w3m-img w3m-el

Clean email list

sed 's/[ ]*$//' < emails.txt | tr 'A-Z' 'a-z' | sort | uniq > emails-scrubbed.txt

Srihash

Generate SRI hashes for your script tags. Protect your web sites

Walletexplorer

Bitcoin block explorer with address grouping and wallet labeling

OP_RETURN - PHP

BTC (Bitcoin) - Simple PHP commands and library for using bitcoin OP_RETURNs.

Bitcoin explorer

Bitcoin explorer - Block viewer, Transaction viewer, Universal search, Raw transaction interpreter, Raw block interpreter

OpenVAS Scanner

OpenVAS is a vulnerability scanner that was developed in response to the commercialization of Nessus

LINQPad

LINQPad is not just for LINQ queries, but any C#/F#/VB expression, statement block or program

MalShare

A free Malware repository providing researchers access to samples, malicious feeds, and Yara results

Ipleak

Quick way to detect if your VPN is WebRTC or DNS leaking

DNSSec Analyzer

Enter a domain name to be tested for dnssec virification

FCC Freq Alloc

FCC Online table of Frequency Allocations. This is a PDF. HAndy way to see whats allocated to what in the USA. Only gives an idea of the range not the direct frequency.

Radio Spectrum

The radio spectrum is the part of the electromagnetic spectrum with frequencies from 30 Hz to 300 GHz. (Wiki page/link)

DKScan

Danish frequencies for all known services and bands. This might be outdated and also TXT document. You can refer to their site, this is just a backup. www.dkscan.dk

Regex101

One of the best online regular expression test websites

OP_RETURN - Py

BTC (Bitcoin) - Simple Python commands and library for using bitcoin OP_RETURNs

ETH-block-by-date

Get Ethereum block number by a given date. Or blocks by a given period duration. Works well with Web3 node js.

Web3.js

Ethereum JavaScript API.

Web3.py

A python interface for interacting with the Ethereum blockchain and ecosystem. Based on Web3.js

Apple Disk Copy

7z x apple-disk-image.dmg

VirtualBox

VirtualBox is a powerful x86 and AMD64/Intel64 virtualization product for enterprise as well as home use. Can read raw images, img, iso, vmdk, vdi, vhdx, vpc, vm ware images and qemu qcow - qcow2

QEMU

QEmu is a powerful generic and open source machine emulator and virtualizer. Can read raw images, img, iso, vmdk, vdi, vhdx, vpc, vm ware images and qcow + qcow2 + coop

MalConfScan

Volatility plugin for extracts configuration data of known malware

Mdadm

mdadm is used to handle software raids on Linux. You can use this tool to create, build, assemble, rebuild, monitor any raid type on Linux. Dont forget the order of the disks is important when trying to assemble an already created raid array etc.

Mdadm loop

losetup loop1 raid-disk1.img