Open-source alternatives to Hping

JSON Web Token Hack Toolkit

Hashcat is a high-performance hash cracking software and OpenCL compute application used to recover plain-text passwords from hashed data. It functions as a GPU-accelerated recovery tool and distributed password cracker, leveraging CPUs and GPUs to perform intensive cryptographic computations. The system differentiates itself through a distributed cracking workflow that coordinates tasks across multiple machines via an overlay network to share computational load. It further optimizes recovery speed using Markov chain keyspace optimization to prioritize the most likely password candidates. Th

The Modern Hash Identification System pip3 install name-that-hash && nth Web App with no install needed

Gospider - Fast web spider written in Go

ksubdomain是一款基于无状态子域名爆破工具，支持在Windows/Linux/Mac上使用，它会很快的进行DNS爆破，在Mac和Windows上理论最大发包速度在30w/s,linux上为160w/s的速度。 ksubdomain的发送和接收是分离且不依赖系统，即使高并发发包，也不会占用系统描述符让系统网络阻塞。

dirsearch is a command-line security tool and web path scanner used for discovering hidden directories and files on web servers. It functions as a recursive directory fuzzer and brute-force utility that identifies undocumented paths and sensitive files using wordlists and HTTP status codes. The tool distinguishes itself through template-driven path generation and an automated HTTP response filter that uses status codes, content length, and regex patterns to isolate valid targets. It supports recursive directory crawling to map complex web structures and provides state-persistence serializatio

:key: Hash type identifier (CLI & lib)

Gobuster is a command-line security utility designed for brute-force discovery of hidden infrastructure and content. It operates by systematically testing wordlists against target network services to identify files, directories, subdomains, and cloud storage buckets. The tool utilizes a concurrent worker pool to execute these requests in parallel, ensuring efficient scanning across various network environments. The project distinguishes itself through a modular plugin architecture that supports multiple discovery modes, including HTTP, DNS, and TFTP. This design allows for protocol-agnostic r

John is a command-line security utility designed for password strength auditing and cryptographic hash recovery. It functions as a professional tool for identifying weak user credentials and recovering access to protected files, archives, and private keys across various operating systems, databases, and applications. The software distinguishes itself through a high-performance architecture that utilizes processor-level vector instructions to perform parallel cryptographic operations. It incorporates a rule-based mutation engine that transforms dictionary words into complex candidates based on

一款快速、全面、易用的页面信息提取工具，可快速发现和提取页面中的JS、URL和敏感信息。

Subfinder is a security reconnaissance framework designed for subdomain enumeration and attack surface management. It functions as a discovery engine that identifies and maps internet-exposed infrastructure, cloud-hosted assets, and network ranges to maintain a comprehensive inventory of an organization's digital footprint. The project distinguishes itself through a modular, template-driven scanning engine that executes security checks against discovered assets. It leverages cloud-native asset discovery to query provider APIs and infrastructure metadata, while supporting distributed agent orc

A Linux packet crafting tool.

Arjun is an HTTP parameter discovery tool that identifies valid parameters on web endpoints by testing large dictionaries of parameter names against target URLs. It systematically probes endpoints using GET, POST, JSON, and XML request formats to find which parameters the server accepts, and can detect parameters whose values appear reflected in the response body. The tool distinguishes itself through its multi-method scanning approach, passive parameter collection from public archives like OTX and CommonCrawl, and its ability to detect value-sensitive parameters that only trigger a response

Scapy is a network packet manipulation tool and protocol analysis suite designed for crafting, sending, sniffing, and dissecting network traffic. It functions as a framework for building custom network tools that interact directly with low-level packet headers and payloads, enabling users to perform security research and network diagnostics. The system distinguishes itself through a layer-based construction model that allows users to define protocols as stacked objects, which automatically handle checksums and field offsets. It utilizes dynamic field reflection to map packet structures to bin

Snort++

Hydra is a network login password cracker and authentication tester designed to identify valid usernames and passwords through automated brute-force and dictionary attacks. It serves as a multi-protocol authentication tester capable of verifying credentials across a wide range of remote network services, including SSH, SMB, FTP, and various database listeners. The project is distinguished by its ability to execute parallelized password attacks against multiple servers and protocols simultaneously. It features a modular system for implementing diverse network authentication schemes, allowing f

Wfuzz is a web application fuzzing framework that automates the injection of payloads into HTTP requests to discover hidden resources, parameters, and vulnerabilities. It functions as a content discovery scanner, a brute-force tool for credential guessing, and a plugin-based vulnerability scanner, all within a single modular system. The tool distinguishes itself through its plugin-based extensibility, allowing custom Python modules to add new payload sources, output printers, or scanning logic without modifying core code. It supports concurrent request dispatch using thread-based parallelism