Pwntools - CTF Toolkit

Pwntools is a CTF framework and exploit development library. Written in Python, it is designed for rapid prototyping and development, and intended to make exploit writing as simple as possible.

Hetty

Hetty is an HTTP toolkit for security research. It aims to become an open source alternative to commercial software like Burp Suite Pro, with powerful features tailored to the needs of the infosec and bug bounty community.

Bluespawn

BLUESPAWN is an active defense and endpoint detection and response tool which means it can be used by defenders to quickly detect, identify, and eliminate malicious activity and malware across a network.

Cutter

Cutter is a free and open-source reverse engineering platform powered by rizin. It aims at being an advanced and customizable reverse engineering platform while keeping the user experience in mind.

Sarenka

SARENKA is an Open Source Intelligence (OSINT) tool which helps you obtaining and understanding Attack Surface.

ProtOSINT

ProtOSINT is a Python script that helps you investigate ProtonMail accounts and ProtonVPN IP addresses.